PT. Sartindo Lamtabo Sejahtera

HELMKE EX-PROOF LOW VOLTAGE MOTOR

DISTRIBUTOR Explosion-proof

Low-voltage Motors

Ex db, Ex db eb, Ex tb

For Catalogue

New catalogue explosion-proof low-voltage motors

Explosion-proof

Low-voltage Motors

Ex db, Ex db eb, Ex tb

Table of Contents

1 General specification 3

1.1 Standards and regulation .................................................................................................................................................... 3

1.2 Explosion protection in the hazard zones ........................................................................................................................ 3

1.3 Produktpalette der Motoren ............................................................................................................................................... 9

2 Mechanical characteristics 12

2.1 Setup conditions ................................................................................................................................................................... 12

2.2 Model for lowest temperatures with and without stationary heating .................................................................... 12

2.3 Material ................................................................................................................................................................................... 14

2.4 Paint ......................................................................................................................................................................................... 14

2.5 Shaft ends, balancing, vibrations, noise level and coupling ........................................................................................ 14

2.6 Mounting arrangements ..................................................................................................................................................... 15

2.7 Belt drive ................................................................................................................................................................................. 16

2.8 Terminal boxes ...................................................................................................................................................................... 17

3 Electrical characteristics 19

3.1 Conditions for rated operation .......................................................................................................................................... 19

3.2 Tolerances ............................................................................................................................................................................. 20

3.3 Insulation and heating ........................................................................................................................................................ 20

3.4 Connection diagrams ........................................................................................................................................................... 21

3.5 Motor protection ................................................................................................................................................................... 21

3.6 Alternating current motors with cage rotors in operation on the frequency inverter ......................................... 22

4 Technical data 25

4.1 Overview ................................................................................................................................................................................ 25

4.2 Overview (IE3-motors) ....................................................................................................................................................... 26

4.3 Bearings ................................................................................................................................................................................. 27

4.4 Technical data of standard motors ................................................................................................................................. 33

4.5 Performance data IE2-motors ......................................................................................................................................... 37

4.6 Dimension standard- and IE2-motors (frame size 63…180) ..................................................................................... 40

4.7 Dimension standard- and IE2-motors (framesize 200...315) .................................................................................... 43

4.8 Performance data IE3-motors ......................................................................................................................................... 47

4.9 Dimensions IE3-motors (frame size 63…180) ............................................................................................................... 50

4.10 Dimensions IE3-motors (frame size 200...315) ............................................................................................................. 53

5 Spare parts 56

Revisions

All technical data, outputs, dimensions and weights, stated in this catalogue, are subject to change without

notice. Illustrations do not purport to show constructional details.

General specification 3

1 General specification

1.1 Standards and regulation

The motors comply with the relevant standards and regulations, especially:

Electrical

IEC-Standard EN-Standard Content

IEC 60034-1 EN 60034-1 Rotating electrical machines – Part 1: Rating and performance

IEC 60034-8 EN 60034-8 Rotating electrical machines – Part 8: Terminal markings and direction

of rotation

IEC 60034-12 EN 60034-12 Rotating electrical machines – Part 12: Starting performance of singlespeed

three-phase cage induction motors

IEC 60034-30-1 EN 60034-30-1 Rotating electrical machines – Part 30-1: Efficiency classes of line

operated AC motors (IE code)

IEC 60038 EN 60038 CENELEC standard voltages

IEC 60079-0 EN 60079-0 Explosive atmospheres – Part 0: Equipment - General requirements

IEC 60079-1 EN 60079-1 Explosive atmospheres – Part 1: Equipment protection by flameproof

enclosures “d”

IEC 60079-7 EN 60079-7 Explosive atmospheres – Part 7: Equipment protection by increased

safety “e”

IEC 60079-31 EN 60079-31 Explosive atmospheres – Part 31: Equipment dust ignition protection by

enclosure “t”

Mechanical

IEC-Standard EN-Standard Content

IEC 60072 EN 50347 Dimensions and outputs

IEC 60034-5 EN 60034-5 Rotating electrical machines – Part 5: Degrees of protection provided by

integral design of rotating electrical machines (IP code) – Classification

IEC 60034-6 EN 60034-6 Rotating electrical machines – Part 6: Methods of cooling (IC-Code)

IEC 60034-7 EN 60034-7 Rotating electrical machines – Part 7: Classification of types of

construction, mounting arrangements and terminal box position (IMcode)

IEC 60034-9 EN 60034-9 Rotating electrical machines – Part 9: Noise limits

IEC 60034-14 EN 60034-14 Rotating electrical machines – Part 14: Mechanical vibration of certain

machines with shaft heights 56 mm and higher – Measurement,

evaluation and limits of vibration severity

1.2 Explosion protection in the hazard zones

Protection classes

The use of electrical machines in areas with explosion hazard is permissible on certain conditions. The machines

must be designed in such a way that the explosion risk is eliminated to the furthest extent possible. An explosion

may occur under the following conditions:

§ there is an explosive atmosphere;

§ there is the risk of a spreading explosion;

§ there are sources of ignition.

The protection classes Ex db and Ex db eb prevent one of the three conditions if gas is present and make an

explosion impossible. The ignition protection class Ex tb prevents one of the three conditions if combustible dust

is present.

The protection class for gas, Ex db eb, represents a combination of:

4 General specification

§ flameproof enclosure “d” for the motor housing;

§ increased safety “e” for the terminal box.

Hazardous areas and zones

Hazardous areas are places where an explosive atmosphere may form under certain conditions.

An explosive atmosphere consists of a mixture of air and gasses, steams, mists and flammable dusts, in which a

fire spreads quickly upon ignition under normal air pressure (explosion).

The user is obligated to apply the classification of the hazardous areas under own responsibility and in

accordance with the European Directive 1999/92/EC.

The international standards EN / IEC 60079-10-1 and 60079-10-2 provide the criteria for the classification of the

hazardous areas based on the chemical properties, physical properties, and the quantity of materials used, as

well as in dependence on the frequency and duration in time when an explosive mixture may form.

Zones with explosive gas atmosphere

If the hazard is due to the presence of gas, steams or mists of flammable materials, the European Directive

1999/92/EC provides for a classification into the following three areas:

Zone 0 − areas in which an explosive atmosphere is present permanently or for long periods. In this area, the

installation of electrical machines requires double protection.

Zone 1 − areas in which it is likely that an explosive atmosphere can form under normal conditions. In this zone,

explosion-protected electrical motors with flameproof enclosure, overpressure enclosure, or such with increased

safety may be installed if a certificate from an accredited institution in accordance with the ATEX Guideline is

provided.

Zone 2 − areas in which an explosive atmosphere can form only in very rare cases and can remain there only for a

short period. In this zone, increased safety (non-sparking) motors may also be set up besides motors with

flameproof or overpressure enclosure. The certificate from a notified body is not required.

Zones with combustible dust formation

If the hazard is due to the presence of combustible dust or combustible flyings, the European Directive

1999/92/EC provides for a classification into the following three zones:

Zone 20 − areas in which an explosive atmosphere is present permanently or for long periods. There are no motors

installed in this zone.

Zone 21 − areas in which it is likely that an explosive atmosphere can form under normal conditions. In this zone,

electrical motors may be installed if a certificate from an accredited institution in accordance with the ATEX

Guideline is provided and if they are installed with protection class IP6x.

Zone 22 − areas in which an explosive atmosphere can form only in very rare cases and can remain there only for a

short period. Depending on the kind of dust, protection class IP6x may also be required in Zone 22. The certificate

from an accredited institution is not required.

Classification of hazard zones

Area of use with presence of

GAS

Area of use with presence of

COMBUSTIBLE DUSTS

Hazard class of the setup

zone

Zone 0 Zone 20 Explosive atmosphere is

present permanently

Zone 1 Zone 21 Explosive atmosphere is

probably present

Zone 2 Zone 22 Explosive atmosphere is

unlikely

Classification of equipment according to ATEX

The European ATEX Directive 2014/34/EU classifies equipment into two equipment groups, each with up to three

different device categories, depending on the safety standard reached by the machine.

General specification 5

F Equipment of a higher category can also be installed at the setup sites of equipment in a lower

category, due to the given redundancy.

Equipment category

DEGREE OF

PROTECTION

ensured by the

equipment

Pits

Equipment Group I

Surfaces

Equipment Group II

Equipment

category

Type of

protection

EPL

ALWAYS PRESENT 20 Very high 1 D Ex ta Da

PROBABLE 21 High 2 D Ex tb Db

NOT PROBABLE 22

Conductive dust

Enhanced 3 D Ex tc IIIC Dc

NOT PROBABLE 22

Non-conductive

dust or fibrous

material

Enhanced 3 D Ex tc IIIB

Ex tc IIIA

Comment: Machines of a higher equipment category can also be installed at the setup places of machines in a

lower equipment category.

1.3 Produktpalette der Motoren

The motors described in this catalogue fulfil the requirements in accordance with the European Directive

2014/34/EC dated 26.2.2014 (ATEX Directive) regarding machines and protection equipment for the use in safe

areas or in areas with a potential explosion hazard.

F The user is responsible for the classification of the areas.

Temperature class

Type T3 T5 T6

63−160 Same output as T4 Same output as T4 Reduced output

compared to T4

180−315 Same output as T4 Reduced output

compared to T4

Reduced output

compared to T4

Basic characteristics

§ Explosion-proof motors, which are protected against explosion according to the standards EN / IEC 60079-0,

60079-1, 60079-7 for gaseous environments, and EN / IEC 60079-31 for environments with flammable dust.

§ Asynchronous alternating current motors with cage rotors.

§ Completely encased, self-ventilated, housing IP55 with terminal box IP65.

10 General specification

§ The motors are air-cooled with external ventilation (standard EN / IEC 60034-6, Method IC 411).

§ Radial fan wheel independent of rotation direction

§ Dimensions according to the standards EN 50347 / IEC 60072.

§ Insulation class F.

§ Maximum sound pressure level 86 dB(A).

§ Terminal box:

- available both as a model with pressure-resistant encasing as well as a model with increased safety,

- in enlarged design,

- normally mounted on the opposite side of the housing feet,

- pivotable by 90° in 4 positions.

§ Motor housing and terminal boxes are separated by design to avoid the spreading of explosions.

§ Type plate made of stainless steel, corrosion protected screws.

§ Strong impact resistance:

- motor housing, terminal box and bearing shields made of grey cast iron.

- Ventilator screws made of steel sheet.

§ Sealing ring with low friction coefficients.

§ The declaration of conformity is also available for special product characteristics that are different from the

basic version, such as:

- Operation above 1000 m absolute altitude.

- Different voltages and frequencies.

- Supply through frequency inverter.

- Built-in temperature sensors in the motor.

- Operating modes from S1 to S9.

Electrical design variants

§ Special voltages and frequencies (max. voltage 1000 V).

§ Motors for tropical climatic zones.

§ Motors for low ambient temperatures (-50 °C).

§ Coil overtemperature below 80 K.

§ Motors of insulation class H.

§ Motors with bi-metal contacts, PTC-thermistors or PT100 temperature sensors.

§ Motors with stationary heating.

§ Motors with electrical characteristics according to customer specifications.

Mechanical design variants

§ Special flanges and shafts.

§ Second shaft end (NDE).

§ Terminal box with cable glands.

§ Terminal box with special wire inlets.

§ Motors without terminal box available with mountings for steel tubes for cable routing.

§ Motors with protection class IP56 – IP65 – IP66.

§ Motors with drainage valves for condensation water.

§ Motors with special bearings (bearings arranged on one side, sensor bearings, roller bearings, current-isolated

bearings, overdimensioned bearings, pressure bearings).

§ Vibration pane of classes A or B, according to EN / IEC 60034-14.

§ Motors with rain or sunroof, water protection panel.

§ Lateral terminal box for axle heights of 160 to 315.

§ Separate terminal box for additional terminals.

§ Model with low sound emission.

§ Higher corrosion protection for tropical climate or applications in marine environments:

- exterior paint of mechanical components with epoxy varnish;

- protection of interior component (coil and rotor) with protective paint;

General specification 11

- rustproof screws.

Accessories

§ Motors for supply with electronic frequency inverter.

§ Motors with encoder.

§ Motors with external ventilation (from frame size 90).

12 Mechanical characteristics

2 Mechanical characteristics

2.1 Setup conditions

The motors can be installed in clear and dusty, moist or chemically aggressive rooms (industry) with

temperatures from −20 °C bis +40 °C.

F It is required to specify the respective setup conditions in the order.

Protection degrees

First numeral:

Protection against contact and ingress of foreign

bodies

Second numeral:

Protection against ingress of water

IP Description

0 No special protection

1 Protection against solid foreign bodies larger

than 50 mm (Example: inadvertent contact

with the hand)

2 Protection against solid foreign bodies larger

than 12 mm (Example: inadvertent contact

with the fingers)

3 Protection against solid foreign bodies larger

than 2.5 mm (Example: Wires, tools)

4 Protection against solid foreign bodies larger

than 1 mm (Example: Wires, bands)

5 Protection against dust (harmful deposits of

dust)

6 Total protection against dust

(is not described for electrical machines

according EN / IEC 60034-5)

IP Description

0 No special protection

1 Protection against vertically falling water drops

(condensation)

2 Protection against dropping water when

inclined by up to 15°

3 Protection against spray water up to 60° from

vertical

4 Protection against shower water from any

direction

5 Protection against water projected by a nozzle

and from any direction

6 Protection against heavy seas or water

projected in powerful jets

7 Protection when submerged between 0,15 and

1 m

8 Protection when continuously submerged in

water at conditions agreed between the

manufacturer and the user

2.2 Model for lowest temperatures with and without stationary heating

Motors that are to be installed in regions with extremely low temperatures must be ordered separately.

The certificates on the explosion safety apply to temperatures up to -50 °C.

The motors equipped with heating elements (electrical resistor heating) maintain a minimum temperature of -

20 °C when the motor is at a standstill (see table).

The motors can also be supplied with low voltage through terminals U1 and V1 instead of the heating elements

(see table).

Instead of pre-heating a motor, a special motor is feasible in which suitable materials are used for the operation

in environments with very low temperatures (-50 °C).

Mechanical characteristics 13

If temperature differences arise, condensation water may form on the inside of the motor. To prevent this, the

motor must be heated with electrical heating elements or the coil must be supplied with low voltage by means of

terminals U1 and V1.

The table indicates the output values of the heating elements installed in the motors, depending on the used

voltages.

F During the operation of the motor, the heating elements must be switched off.

The standard voltage is 230 V ± 10 %.

Stationary heating

Frame

size

For the prevention of condensation water For use in temperatures below -20°C

(up to -50°C)

With

heating

element

Through motor coil With

heating

element

Through motor coil

Output Performance

[W]

230

[V]

400

[V]

440

[V]

500

[V]

690

[V]

[W]

230

[V]

400

[V]

440

[V]

500

[V]

690

[V]

63 25 35 45 75 90 100 130 50 90 70 120 140 160 210

71 25 55 35 65 75 85 110 50 130 60 100 120 135 175

80 25 70 30 55 65 75 100 50 180 50 90 100 115 155

90 25 100 25 45 50 60 80 50 250 40 70 80 95 125

100 25 140 20 35 40 50 65 50 440 40 65 75 85 115

112 50 190 20 38 45 50 65 100 490 35 60 70 80 105

132 50 300 20 35 40 45 60 100 700 30 55 65 70 90

160 50 420 17 30 35 40 50 100 950 25 45 55 60 80

180 100 500 15 25 30 35 45 200 1200 25 40 50 55 70

200 100 720 13 20 25 30 40 200 1500 20 35 40 45 60

225 100 800 13 20 25 30 40 200 2200 20 35 40 45 60

250 100 950 10 20 25 30 40 200 2700 20 35 40 45 60

280 200 1700 — 20 22 25 30 200 3000 — 28 35 40 50

315 200 1900 — 16 20 25 30 200 3600 — 25 32 38 48

315L 200 2100 — 14 18 24 30 200 4800 — 22 30 35 45

14 Mechanical characteristics

2.3 Material

Frame size 63–250 Frame size 280–315

Motor housing, bearing

shield, terminal box

Grey cast iron G200 (150

185)

Grey cast iron

Ventilator hood, rain

protection roof

Steel Steel

Fan wheel Thermoplast, sprarkproof

or in aluminium, brass for

motors-resistant to

firedamp

Aluminium, brass for

motors-resistant to

firedamp

Shaft Steel C45 Steel C45

Rotor Cage made of pressurecast

aluminium

Cage made of pressurecast

aluminium

Coil Insulation class F or H Insulation class F or H

Screws, motor housing,

bearing shield, terminal

box

Steel 8.8 galvanised or

A4-80, EN ISO 3506-1

8.8 steel, galvanised

2.4 Paint

Frame size 63–250 Frame size 280–315

Paint priming Components are sandblasted,

clean and free

from grease, epoxide

powder polymerised in the

furnace at 200 °C

Components are sandblasted,

clean and free

from grease, treated with

rust-protection primer

Layer thickness, colour Overall 120 μm (other

thicknesses on request)

RAL 7030 (special colours

on request)

Top coat with enamel

paint, overall 120 μm

(other thicknesses on

request)

RAL 7030 (special colours

on request)

Mechanical resistance Abrasion-resistant,

elastic, scratch and

impact-resistant

Abrasion-resistant,

elastic, scratch and

impact-resistant

Corrosion resistance Excellent resistance

against water, water

steam and saline liquids

Excellent resistance

against water, water

steam and saline liquids

Chemical resistance,

measurement conditions

Good resistance in

chemically aggressive

environment

Good resistance in

chemically aggressive

environment

2.5 Shaft ends, balancing, vibrations, noise level and coupling

Shaft ends

The shaft ends are cylinder-shaped and comply with the standards EN 50347 / IEC 60072. As a standard, they

are provided with a parallel key and a threaded hole on the front side for the mounting of belt pulleys and

couplings.

The parallel keys are included in the delivery of the motor. On request, motors with second shaft ends and/or

special shaft end are also available.

For motors with switchable poles, with 2/4, 2/6, 2/8 and 2/12 poles, the shaft has the same dimensions as for 2-

pole motors.

Mechanical characteristics 15

Balancing, vibrations

The rotors are dynamically balanced with a parallel key according to 1SO 8821.

The vibration values are within the limits prescribed by the standards EN / IEC 60034-14, Level “A” (N).

For special requirements, motors with a vibration level of “B” (R) (reduced) are available.

It must be ensured before assembly that the transmission elements, such as belt pulleys and couplings have been

dynamically balanced with half key.

Noise level

The noise level values comply with the standards EN / IEC 60034-9. The nominal data include the sound pressure

values “Lp” in dB(A) for each motor type.

These values apply to motors in idle run with a frequency of 50 Hz and a tolerance of +3 dB(A). For motors with

60 Hz, the sound pressure values are approx. 4 dB(A) higher than at 50 Hz.

Direct coupling

For a direct coupling of the motor with the driven machine, the shaft axes have to be aligned properly in order to

avoid damages or seizing up of the bearings.

The connection with a lamellar coupling or similar coupling types is permissible for all motors but in that case, as

well, the axes have to be aligned properly. Special care is required in the assembly of 2-pole motors.

Belt drive

In order to simplify assembly and the adjustment of the belt tension, assembly slides are commonly used on

which the motor is mounted.

It has to be checked if the maximum radial stress generated by the belt tension is less than the maximum

permissible force specified in the motor data. Belt pulleys and couplings may only be mounted and removed with

the tools provided for this purpose.

2.6 Mounting arrangements

Mounting arrangements for rotating electrical machines are designated according to IEC 60034-7, Code I (in

brackets Code II).

Our motors are available according to the table depending on design and frame size.

16 Mechanical characteristics

Fußmotoren Baugrößen 63–315

IM B3 (IM 1001) IM V5 (IM 1011) IM V6 (IM 1031) IM B6 (IM 1051) IM B7 (IM 1061) IM B8 (IM 1071)

Flanschmotoren (Durchgangslöcher) Baugrößen 63–315

IM B5 (IM 3001) IM V1 (IM 3011) IM V3 (IM 3031)

Flanschmotoren (Gewindebohrungen) Baugrößen 63–132

IM B14 (IM 3601) IM V18 (IM 3611) IM V19 (IM 3631)

Motoren mit Fuß und Flansch (Durchgangslöcher) Baugrößen 63–315

IM B35 (IM 2001) IM V15 (IM 2011) IM V36 (IM 2031) IM B6/B5 (IM 2051) IM B7/B5 (IM 2061) IM B8/B5 (IM 2071)

Motoren mit Fuß und Flansch (Gewindebohrungen) Baugrößen 63–132

IM B34 (IM 2101) IM V5/V18

(IM2111)

IM V6/V19 (IM2131) IM B6/B14 (IM 2151) IM B7/B14 (IM 2161) IM B8/B14 (IM 2171)

F The required model has to be specified in the order, as the design will be adjusted in part to the

installation position.

2.7 Belt drive

The data refer only to the normal shaft end at the drive end of IM B3 motors with one speed.

Mechanical characteristics 17

Calculation of radial shaft

load: FR =

19120 · P · k

D1 · n [N]

FR = radial shaft load in N

P = power in kW

n = speed in min-1

D1 = pulley diameter in m

k = belt tension factor

The belt tension factor depends on the type of belt and is assumed to be approximately:

3...4 for normal flat belt without idle pulley

2...2,5 for normal flat belt with idle pulley

2,2...2,5 for V-belt

Please enquire exact data from the belt manufacturer.

2.8 Terminal boxes

Our series offers the following models:

§ Ex db eb IIC Gb

§ Ex db IIC Gb

§ Ex db eb IIB Gb

§ Ex db IIB Gb

§ Ex tb IIIC Db

Available on request:

§ Motors with additional terminal box for auxiliary cables

Position of the terminal box and the terminal

The terminal boxes are arranged in the upper area of the housing, the position of the cable inlets can be turned

by 90° in four positions.

On horizontally mounted motors, the cable inlets are normally arranged on the right side (viewed from the drive

side).

Terminals and protective conductor connection

In the terminal box, maximally 3 power terminals can be arranged. The number of permissible accessory parts

depends on the number of the terminals required for the motor and on whether an additional terminal box is

provided.

Two additional terminals are required for PTC thermistors. Also, the connection of a stationary heating system

requires two terminals.

For PT100 (RTD), 3 or 4 terminals are necessary depending on the chosen type.

The terminal box also contains one protective conductor terminal.

An additional protective conductor terminal is arranged on the motor housing.

Cable inlet thread

The motors are delivered in the series standard with one or two cable inlets that are suitable for explosionprotected

cable glands.

For Ex db eb motors, also cable glands certified for the protection class Ex eb can be used.

The motors equipped with temperature sensors or stationary heating have an additional cable inlet for the

connection of these accessory parts.

18 Mechanical characteristics

Cable inlet thread

Frame size Cable inlet thread

63–112 1 x M25 + 1 x M20

132–160 1 x M32 + 1 x M20

180–250 1 x M40 + 1 x M20

280–315 1 x M63 + 1 x M20

Frame size Cable inlet for auxiliary

equipment

63–315 1 x M20

Electrical characteristics 19

3 Electrical characteristics

3.1 Conditions for rated operation

Power

The output of the other rated characteristics specified in this catalogue refers to the following conditions

according to the standard EN / IEC 60034-1:

§ Continuous operation (S1)

§ Frequency 50 Hz

§ Voltage 400 V

§ Ambient temperature of 40 °C

§ Altitude of setup site max. 1000 m absolute

The motors can also be operated in an ambient temperature of up to 80°C and be set up in absolute altitudes of

up to 4000 m. In this case, the output will reduce as shown in the table. Alternatively, a bigger motor might be

required.

If the full rated output is required as per the selection tables,

the coolant temperature has to be reduced according to the table

shown on the side.

Thermal

class

Altitude of setup site

2000 m 3000 m 4000 m

B 32 °C 24 °C 16 °C

F 30 °C 19 °C 9 °C

H 28 °C 15 °C 3 °C

Voltage, frequency

As a standard, the motors are designed for operation with the rated voltages and frequencies, as well as the

tolerances given in the standard EN / IEC 60034-1. The motors may be operated with the tolerances provided for

the normal area of use (Zone A: voltage ±5 %, frequency ±2 %).

The motors can furthermore be used in observation of the requirements according to the standard EN /

IEC 60034-1, in areas with limited use zone B (deviations of the voltage of ±10% and of the frequency of ±3%).

Rated current

The rated currents specified in the selection tables apply to an operating voltage of 400 V. The conversion to

other operating voltages with equal output and frequency has to be conducted as follows:

Rated voltage (V) 230 380 400 440 500 660 690

Conversion factor x lN 1.74 1.05 1.0 0.91 0.80 0.61 0.58

Rated torque

The motors have a squirrel-cage rotor that is suitable for the direct start-up. The values of the starting torque

and tilting moment can be found in the tables of the operating data.

Rated torque [Nm] = 9550 ·

Rated power [kW]

Rated speed [min-1]

Rotation speed

The rotation speeds specified in the data tables refer to 50 Hz and correspond to the synchronous rotation speed

less slippage.

20 Electrical characteristics

Rotation direction

Most of the motors can be operated in both rotation directions. Motors for one rotation direction are typical at

bigger motor sizes, higher rotation speed and specific demands regarding noise level. Please clarify at order and

see individual technical data.

If the phases in sequences L1, L2, L3 are connected to terminals U1, V1, W1, the motor will rotate clockwise when

looking at the shaft end.

If admissible, the rotation direction can be reversed by reversing two optional phases.

3.2 Tolerances

In consideration of the manufacturing tolerances and material deviations in the used raw materials, the

tolerances for industrial motors according to EN / IEC 60034-1 are permitted for the assured values. The

following notes in this regard are included in the standard:

§ An assurance of all or any of the values according to the table is not mandatorily required. Assured values to

which permissible deviations are to apply must be expressly stated in the offers. The permissible deviations

have to match the table.

§ If there is a permissible deviation only in one direction, the value in the other direction is not limited.

Values for Tolerannce

Efficiency class(η)

(for indirect assessment)

−0.15 · (1 − η) for PN ≤ 50 kW

−0.10 · (1 − η) for PN > 50 kW

Power factor (cos ϕ) −⅙ · (1 – cos ϕ), at least 0.02, at most 0.07

Slippage (s) (for rated load in condition at

operating temperature)

±20 % of the assured slippage for PN ≥ 1 kW

±30 % of the assured slippage for PN < 1 kW

Locked rotor current (IA)

(in the intended start switching)

+20 % of the assured locked rotor current

without bottom limitation

Locked rotor torque (TA) −15 % and +25 % of the assured locked rotor torque

(+25 % may be exceeded upon agreement)

Pull-up torque (TS) −15 % of the assured value

Tilting moment (TB) −10 % of the assured value

(after application of this tolerance, TB/TN is at least 1.6)

Inertia moment (J) ±10 % of the assured value

3.3 Insulation and heating

The insulation of the motors corresponds to thermal classes F or H according to EN / IEC 60034–1:

§ painted copper wire, heat-resistant up to 200 °C (class H)

§ Surface insulation materials on polyester basis (class F)

§ Waterproofing with a mix of phenol and polyester resins (class H)

The table shown on the side specifies the heating (ΔT*) and maximum

temperatures the hottest points of the coil (Tmax) according to the heat classes

of the standard EN / IEC 60034–1.

Class ΔT Tmax

B 80 K 130° C

F 105 K 155° C

H 125 K 180° C

F Except for frame size 315M, the motors in the standard design are utilized at a coolant

temperature of 40°C only according to thermal class B – with a limit overtemperature of 80 K.

Electrical characteristics 21

3.4 Connection diagrams

Star connection

Star connection is obtained by connecting terminals W2, U2, V2 to each

other and terminals U1, V1, W1 to the mains.

Phase current and phase voltage are: Iph = IN; Vph = VN / 3

where IN is the rated current and VN the rated voltage at star

connection.

Delta connection

Delta connection is obtained by connecting the end of a phase to the

beginning of the next phase.

Phase current and phase voltage are: Iph = IN / 3; Vph = VN

where IN and VN are rated current and rated voltage at delta

connection.

Star-delta connexion

Star-delta connection permits a reduction of the starting current, ensuring however that the resulting starting

torque obtained is higher than the load torque. Thereby it should be observed that the torque of an asynchronous

motor is directly proportional to the square of the voltage. Motors whose rated voltage with delta connection

corresponds to the mains voltage, can be started with the star-delta method.

3.5 Motor protection

The selection of the thermal motor protection should result from the existing operating conditions. Motors may

be protected by means of current-dependent motor circuit breakers or overcurrent relays and temperature

sensors.

Motor protection is possible as follows:

§ Motor circuit breaker with overcurrent-time-trip

§ Thermistor protection with thermistor temperature sensors (PTC) in the stator winding combined with relay

(if required, with additional motor circuit breaker).

§ Resistance thermometer for monitoring of winding and bearing temperature (PT100).

§ Bimetal temperature sensor as N.C. or N.O. in the stator winding (if required, with additional motor circuit

breaker).

Although there are motors available from stock with built-in thermistor temperature sensor, a special remark has

to be made in the enquiry or order when motor protection is required.

Mode of functioning of the bi-metal temperature sensors Mode of functioning of the resistor

temperature sensors (PTC type)

Ti Switching temperature

Tr Reset temperature

Ti Switching temperature

Type N/O

(normally open)

Typ N/C

(normally closed)

22 Electrical characteristics

Circuitry examples

Protection measure Protection against...

Motor circuit breaker with thermal and

electromagnetic overcurrent trip

§ Overload in continuous operation

§ Blocked rotor

§ Not for use with frequency converter

according to EN / IEC 60079-14

Protection with overcurrent relay

Thermistor protection and fuse

In operation, protection against:

§ Overload in continuous operation

§ Long start-up and braking processes

§ High switching frequency

In case of failure, protection against:

§ Obstruction of the cooling

§ Increased coolant temperature

§ One-phase ru

§ Frequency fluctuations

§ Blocked rotor

Resistor temperature sensor with trigger

device

In operation, protection against:

§ Overload in continuous operation

§ Long start-up and braking processes

§ High switching frequency

In case of failure, protection against:

§ Obstruction of the cooling

§ Increased coolant temperature

§ One-phase ru

§ Frequency fluctuations

§ Blocked rotor

F EN / IEC 60079-14 must be observed.

3.6 Alternating current motors with cage rotors in operation on the frequency inverter

The motors built specifically for this purpose, with ignition protection classes “db” or “db eb”, can also be

operated in classified areas with supply from an electronic frequency inverter. EN / IEC 60079-14 must be

observed.

If Ex db, Ex db eb or Ex tb motors with frequency inverters are used, the following factors must also be

considered in addition to the common selection criteria:

§ Motors operated with frequency inverters do not have a pure sine-wave voltage (or current). This fact leads to

rising dissipations, vibrations and noise level of the motor.

§ When using frequency inverters, the rotation speed of the motors can differ significantly from the rated

rotation speed shown on the type plate. Rotation speeds exceeding the value shown on the type plate must be

reconcilable with the motor and the motor-load-machine proposition.

§ Standard motors in the layout for 230 V Δ / 400 V Y, 50 Hz with a delta circuit of 400 V, depending on the

motor type, can be operated with a cut-off frequency of up to 87 Hz (mechanical limit rotation speeds must

be observed).

§ The operating duration with a rotation speed higher than 3600 min-1 must not be above 10 % of the total

work cycle of the motor in order to assure an appropriate lifetime.

Electrical characteristics 23

§ Maximum initial inverter voltage 500 V with peak voltages of Û ≤ 1460 V and du/dt ≤ 13 kV/μs. For higher

initial inverter voltages or loads, a special insulation is required.

§ For motors with frame size 280 and higher, we recommend an insulated bearing on the non-drive side.

§ §Use an approved and functionally tested temperature monitoring device which disconnects the motor from

the electrical supply in case of over-temperature.

2-pole motors – Torque limits for frequency inverter operation

IC411: self ventilated; IC416: forced ventilated

Curve A: field weakening from a frequency of 50 Hz

Curve B: no field weakening up to a frequency of 87 Hz

230 V / 400 V motor in 230 V Δ: 50 Hz with 230 V; 87 Hz with 400 V

40%

60%

80%

100%

120%

0 10 20 30 40 50 60 70 80 f /Hz 90

63…100

IC416

IC411

M/Mn

40%

60%

80%

100%

120%

0 10 20 30 40 50 60 70 80 f /Hz 90

112…160

IC416

IC411

M/Mn

40%

60%

80%

100%

120%

0 10 20 30 40 50 60 70 80 f /Hz 90

180…200

IC416

IC411

M/Mn

40%

60%

80%

100%

120%

0 10 20 30 40 50 60 70 80 f /Hz 90

225…250

IC416

IC411

M/Mn

40%

60%

80%

100%

120%

0 10 20 30 40 50 60 70 80 f /Hz 90

280…315

IC416

IC411

M/Mn

24 Electrical characteristics

4-, 6- and 8-pole motors – Torque limits for frequency inverter operation

IC411: self ventilated; IC416: forced ventilated

Kurve A: field weakening from a frequency of 50 Hz

Kurve B: no field weakening up to a frequency of 87 Hz

230 V / 400 V motor in 230 V Δ: 50 Hz with 230 V; 87 Hz with 400 V

40%

60%

80%

100%

120%

0 10 20 30 40 50 60 70 80 f /Hz 90

63…200

IC416

IC411

M/Mn

40%

60%

80%

100%

120%

0 10 20 30 40 50 60 70 80 f /Hz 90

225…250

IC416

IC411

M/Mn

40%

60%

80%

100%

120%

0 10 20 30 40 50 60 70 80 f /Hz 90

280…315

IC416

IC411

M/Mn

Technical data 25

4 Technical data

4.1 Overview

The technical data specified in the following apply to the models with Ex db IIC/IIB and Ex db eb IIC/IIB and

Ex tb IIIC.

Overview (standard- and IE2-motors)

Type * Frame

size

Rated output [kW]

2-pole 4-pole 6-pole 8-pole

CDEDOR63A 63 0.18 0.12 − −

CDEDOR63B 63 0.25 0.18 0.09 0.05

CDEDOR71A 71 0.37 0.25 0.18 −

CDEDOR71B 71 0.55 0.37 0.25 0.15

CDEDOR80A 80 0.75 0.55 0.37 0.18

CDEDOR80B 80 1.1 0.75 0.55 0.25

CDEDOR90S 90S 1.5 1.1 0.75 0.37

CDEDOR90L 90L 2.2 1.5 1.1 0.55

CDEDOR100LA, LB 100L 3.0 2.2 1.5 0.75

CDEDOR100LB 100L − 3.0 − 1.1

CDEDOR112M 112M 4.0 4.0 2.2 1.5

CDEDOR132SA 132S 5.5 − − −

CDEDOR132SB 132S 7.5 5.5 3.0 2.2

CDEDOR132MB 132M − − 4.0 −

CDEDOR132MB, ML 132M − 7.5 5.5 3.0

CDEDOR160MA 160M 11 − − 4.0

CDEDOR160MB 160M 15 11 7.5 5.5

CDEDOR160L 160L 18.5 15 11 7.5

CDEDOR180M 180M 22 18.5 − −

CDEDOR180L 180L − 22 15 11

CDEDOR200LA 200L 30 − 18.5 −

CDEDOR200LB 200L 37 30 22 15

CDEDOR225S 225S − 37 − 18.5

CDEDOR225M 225M 45 45 30 22

CDEDOR250M 250M 55 55 37 30

CDEDOR280S 280S 75 75 45 37

CDEDOR280M 280M 90 90 55 45

CDEDOR315S 315S 110 110 75 55

CDEDOR315M 315M 132 132 90 75

CDEDOR315LB 315L 160 160 110 90

CDEDOR315LC 315L 200 200 132 110

* The type designations change depending on the ignition protection class as follows:

§ Ex db eb IIC Gb: CDEDOR

§ Ex db eb IIB Gb: BDEDOR

§ Ex db IIC Gb: CDDOR

§ Ex db IIB Gb: BDDOR

§ Ex tb IIIC Db : BSDOR

26 Technical data

General data

§ Thermistor 3 PTC installed by standard

4.2 Overview (IE3-motors)

Type * Frame size Rated power [kW]

2-pole 4-pole 6-pole

CDEDOR80MA 80 0.75 − −

CDEDOR80MB 80 1.1 0.75 −

CDEDOR90S, LA 90S, L 1.5 1.1 0.75

CDEDOR90SL, L, LB 90L 2.2 1.5 1.1

CDEDOR100LA, L 100L 3.0 2.2 1.5

CDEDOR100LB 100L − 3.0 −

CDEDOR112M, MB 112M 4.0 4.0 2.2

CDEDOR132SA 132S 5.5 − 3.0

CDEDOR132SB, S 132S 7.5 5.5 −

CDEDOR132MA 132M − − 4.0

CDEDOR132MB, M 132M − 7.5 5.5

CDEDOR160MB, M 160M 11 11 7.5

CDEDOR160MC 160M 15 − −

CDEDOR160LA, LB 160L 18.5 15 11

CDEDOR180M 180M 22 18.5 −

CDEDOR180LA 180L − 22 15

CDEDOR200LA 200L 30 30 18.5

CDEDOR200LB 200L 37 − 22

CDEDOR225S 225S − 37 −

CDEDOR225SM 225M 45 45 30

CDEDOR250MA 250M 55 55 37

CDEDOR280S 280S 75 75 45

CDEDOR280SM, MA 280M 90 90 55

CDEDOR315S 315S 110 110 75

CDEDOR315MA, MB 315M 132 132 90

CDEDOR315ML, LA 315L 160 160 110

CDEDOR315LC 315L 200 200 132

* The type designations change depending on the ignition protection class as follows:

§ Ex db eb IIC Gb: CDEDOR

§ Ex db eb IIB Gb: BDEDOR

§ Ex db IIC Gb: CDDOR

§ Ex db IIB Gb: BDDOR

§ Ex tb IIIC Db : BSDOR

General data

§ Thermistor 3 PTC installed by standard

Technical data 27

4.3 Bearings

Bearing attribution (standard design)

Grooved ball bearing according to ISO 15

Frame size No. of poles Drive side Non-drive side

63 2...8 6202-ZZ 6202-ZZ

71 2...8 6203-ZZ 6203-ZZ

80 2...8 6204-ZZ 6204-ZZ

90 2...8 6205-ZZ 6205-ZZ

100 2...8 6206-ZZ 6206-ZZ

112 2...8 6306-ZZ 6306-ZZ

132 2...8 6308-ZZ C3 6308-ZZ C3

160 2...8 6309-ZZ C3 6309-ZZ C3

180 2…8 6310-ZZ C3 6310-ZZ C3

200 2…8 6312-ZZ C3 6312-ZZ C3

225 2…8 6313-ZZ C3 6313-ZZ C3

250 2

4…8

6313-ZZ C3

6314-ZZ C3

6313-ZZ C3

280 2…8 (hor.)

2…8 (vert.)

6316-ZZ C3

6316 C3

6316-ZZ C3

6316 C3

315 2 (hor.)

4…8 (hor.)

2 (vert.)

4…8 (vert.)

6316-ZZ C3

6317-ZZ C3

6316 C3

6317 C3

6316-ZZ C3

6316 C3

28 Technical data

Bearing attribution (special

execution with regreasing

device)

Grooved ball and roller

bearing according to ISO 15

Frame

size

No. of

poles

Bearing Greasing

interval

[h]

Quantity

of grease

[g]

Grooved

ball

bearing

Roller

bearing

NDE

Grooved

ball

bearing

160 2

6309 C3 NU 309 6309 C3

5500 12

4…8 8250

180 2

6310 C3 NU 310 6310 C3

2000 12

4…8 6000 15

200 2

6312 C3 NU 312 6312 C3

2100 12

4…8 5000 15

225 2

6313 C3 NU 313 6313 C3

2000 15

4…8 4500 20

250 2 6313 C3 NU 313

6313 C3

2000 20

4…8 6314 C3 NU 314 4100

280 2

6316 C3 NU 316 6316 C3

3700 33

4…8 4300

315S 2 6316 C3 NU 316

6316 C3

3300 37

4…8 6317 C3 NU 317 9500

315M 2 6316 C3 NU 316

6316 C3

2900 37

4…8 6317 C3 NU 317 7800

315LA 2 6316 C3 NU 316

6316 C3

4100 33

4…8 6317 C3 NU 317 11100 37

315LB 2 6316 C3 NU 316

6316 C3

3500 37

4…8 6317 C3 NU 317 9500

315LC 2 6316 C3 NU 316

6316 C3

2900 33

4…8 6317 C3 NU 317 7800 37

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