Explosion-protected Motors

Maximum Safety and Extreme Ruggedness

With the explosion-protected motors from Siemens you are going further than the basic safety requirements: our rugged EEx motors operate completely reliably even under the most extreme conditions – and this has been proven worldwide a hundred thousand times over. And what is more, there are no gaps in our EEx motor range, they meet all requirements with maximum safety and high efficiency during operation.

We offer drive solutions with double protection for exceptional requirements. The result: A portfolio of motors that is globally unrivalled in terms of scope and standard.

Explosion-protected Motors – a Brief Summary of Their Strengths

Type spectrum IEC

Our explosion-protected motors fulfill the ATEX 95 directive:

Integrated gray cast iron series for standard and explosion-protected motors

Motors with “increased safety” – “e” (Ex e II) type of protection, Motors with flameproof enclosure – “d” (Ex de IIC), Motors in non-sparking design – “n” (Ex nA) and Motors with dust explosion protection for Zone 21/22

Type spectrum NEMA

Explosion-proof motors fulfill the strict requirements according to

Class I, Group D

Class II, Groups F&G

Division 1, hazardous areas

Explosion-protected Motors − Technical Data

Motors	Increased safety – "e"	Increased safety – "d"	Increased safety – "n"	Dust explosion protection	NEMA EX
Voltage and power ranges	0.12 - 165 kW	0.25 - 950 kW	0.09 - 1000 kW	0.06 - 1000 kW	1-300HP
Voltage and power ranges	All commonly used voltages				230, 460 & 575 V with 60 Hz
Frame sizes and designs	63M - 315L	71M - 450	63M - 450	56M - 450	140 - 440
Frame sizes and designs	All common construction types
Rated speed and rated torque	750 - 3600 min^-1 0.3 - 10300 Nm	750 - 3600 min^-1 0.3 - 10300 Nm	750 - 3600 min^-1 0.3 - 10300 Nm	750 - 3600 min^-1 0.3 - 10300 Nm	900-3600 min^-1 1.5-1772 lb-ft
Application area	Ex-Zone 1 II 2G Ex e II T1-T3	Ex-Zone 1 II 2G Ex de IIC T1-T6	Ex-Zone 2 II 3G Ex nA II T3	Ex-Zone 21/22 Zone 21: II 2D Ex tD A21 IP65 T120°C Zone 22: II 3D Ex tD A22 IP55 T120°C	Class I, Group D, Class II, Groups F&G Division 1 hazardous areas

Explosion-protected Motors – Typical Uses

In hazardous environments, such as in chemical plants, the oil industry, in gas works, in wood and plastic processing industry or in agriculture.