Explosion Proof Motors - ATEX Certified Stepper DC

In the presence of combustible gases, dust, vapors, fibers or flyings, electrical equipment must be designed to eliminate or contain any potential ignition source such as arcing or excessive temperatures. Explosion proof motors are not designed to survive an external explosion, but instead to avoid the possibility of igniting a fire or explosion. They are certified to operate safely in specific hazardous locations as classified by IECEx (Europe/International), UL (North America), ATEX (Europe/International), or CSA (Canada).

Design Criteria

Explosion proof or hazardous location motors are required in these and other industries:

Mining
Oil and natural gas refining
Flour mills
Grain elevators
Textile mills
Industrial paint booths

Hazardous locations are classified by the types of hazardous materials and how likely they are to be present in a particular area under normal operating conditions. To operate safely in locations where flammable materials are continually present (such as UL Class 1, Division 1 or ATEX Zone 0 and 1 locations), explosion proof motors must incorporate these key design features:

The motor enclosure must be able to withstand and contain an internal explosion.
Ignition sources such as flames and sparks must not be permitted to reach the external environment where they could cause an explosion.
The surface temperature of the housing must never be hot enough to ignite combustible materials in the external environment, even under overload conditions or when the motor is insulated by a layer of hazardous dust. A temperature code (T-code) designates the maximum surface temperature range.
A nameplate must be supplied with the motor clearly stating the explosion-proof rating and, as applicable, the T-code.

Kollmorgen’s Explosion Proof and Hazardous Location Motors

	Goldline EB/EBH Series	AKME Series	PMDC Explosion Proof (EP) Series	Stepper MX Series	AC Synchronous X Series
Motor Technology Type	Brushless, Servo	Brushless, Servo	Brush, Permanent Magnet DC	Brushless, Stepper	Brushless, AC Synchronous
Typical Motion Profile and Loading	Variable Speed, Dynamic Load	Variable Speed, Dynamic Load	Fixed Speed, Constant Load	Variable Speed, Constant Load	Fixed Speed, Constant Load
Frame Sizes	4.49 " sq. to 8.91 " sq.	58-188 mm	NEMA 56C	NEMA 34 & 42	NEMA 42 & 66
Input Voltages	up to 480 VAC	48, 75 Vdc, 120, 240 or 400 Vac	12, 24, 90 & 180 VDC	up to 240 VAC	120 & 240 VAC, 50/60 Hz
Drive/Amplifier Requirement	Yes	Yes	No	Yes	No
Torque Range	0.84 to 158 Nm	0.37 to 51.75 Nm	1.02 to 3.05 Nm	1.27 to 9.82 Nm	1.77 to 10.59 Nm
Speed Range	up to 7,500 rpm	up to 5,000 rpm	1750 rpm	up to 3,000 rpm	60/72 rpm
Certifications	UL, File E120721 Class 1, Divisions 1&2, Groups C&D - or - ATEX, File ITS12ATEX17548X CE 0081 Ex II 2 G Ex d IIB T3 Gb -40ºC Ta 40ºC IECEx ETL 12.0006X	TPS 25 ATEX 124440 0005 X Gas, Zone 2: II 3G EX ec mc IIC T4 Gc Dust, Zone 22: II 3D EX tc IIIC T130°C Dc IECEx TPS 25.0065X	UL, File E56538 Class 1, Divisions 1&2, Groups C&D Class 2, Division 1&2, Groups F&G Class 3, Divisions 1 & 2	UL, File E120721 (MX9 Series) UL, File E32246 (MX11 Series) Class 1, Divisions 1&2, Group D	UL, File E32246 Class 1, Divisions 1&2, Group D

Kollmorgen offers explosion proof and hazardous location motors that meet the certification requirements of UL, ATEX, IECEx and/or CSA. If one of our explosion proof or hazardous location motor offerings does not meet the certification or performance requirements you need, contact us to discuss your specific application requirements. We can evaluate additional certifications for a product, or we can recommend a frameless motor solution for incorporation and certification in explosion proof or hazardous location systems of your own design.

Goldline EB and EBH Series >

Based on the 230 VAC B and M Series, the EB Series provides a high-performance explosionproof servomotor that is UL Listed for use in Class I, Division 1, Group C and D hazardous locations.

AKME Series Servo Motors >

AKME Series is built on the AKM platform and designed for use in Zone 2 and Zone 22 environments with ATEX and IECEx global certification.

EP Series Explosion Proof >

These permanent magnet DC (PMDC) motors are SCR-rated and adhere to NEMA standards. They are available in a variety of DC voltages, from 1/4 to 3/4 HP.

MX Series Hazardous Duty >

MX Series are Explosion-proof rated stepper motors, designed to meet Class I, Division 1&2, Group D hazardous location requirements. They are available in NEMA 34 and 42 frame sizes providing minimum holding torques from 1.27 to 9.82 N-m (180 to 1,390 oz-in).

Hazardous Duty Synchronous Motors >

Providing torque up to 1,500 oz-in (1,059 N-cm), these synchronous motors are available in UL Listed versions suitable for use in Class I, Division 1&2, Group D hazardous locations. Frame sizes are NEMA 42 and 66 (110 mm and 170 mm).