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Hazardous Locations Motors

Here at Dietz we specialize in motors suitable for use in hazardous locations. Our experts can assist you in providing the correct motors for any hazardous area. We have years of experience in specifying motors to meet the requirements of the national fire protection association and certified by U.L., C.S.A, FM. We have extensive experience supplying hazardous area motors for all U.S., and international standards, whether they be U.L., CSA, ATEX, IECEx We stock standard NEMA Class I, Group C & D, Division 1, explosion proof motors up to 100HP.

We can also supply Division 1 motors to Class I (Gases, Vapors) Groups C&D, and Class II (Combustable Dusts) Groups E,F, & G. Motors that meet the requirements of the National Electric Code NFPA 70 501-(b) 1999 for operation in Class I, Division 2 locations are also available.

In addition to standard explosion proof motors we also offer motors suitable for use in Class I, Group A & B, Division 1 hazardous locations. These motors are designed to operate in areas where Hydrogen is present (or gases or vapors equivalent in hazard to hydrogen gas) We can offer these motors in all NEMA frame sizes ¼ - 100HP in foot and flange mountings. Single phase motors are also available.

North American standards for explosion proof motors operating in Class I Group B Division 1, hazardous locations.

We also have extensive expertise in supplying flameproof motors to all international standards certified by ATEX, and IECEx

  • EExd Flameproof gas groups IIA, IIB, IIC, Zone 1
  • ExN Type N Non-Sparking Zone 2
  • EExeIncreased Safety, Zone 1

Dietz can offer motors in both NEMA and IEC frame sizes, which comply with the standards of all European countries in accordance with(EN 50 014 and EN 50 018) for explosive groups and temperature classes.

Hydrogen is classified under Apparatus gas Group IIC, Zone 1. Our standard motor versions correspond to the highest explosion group IIC, and temperature class T4, which also cover all lower explosion groups and temperature classes. Type EExde IIC T4 is certified ATEX, and IECEx

This type of motor is less expensive than the motors supplied with a type “X” purging system.