Hazardous Locations: Rebuilt Motors and Generators to UL Requirements


This one-day workshop covers installation requirements for electric motors and generators as well as their use in hazardous (classified) locations in accordance with the National Electrical Code, NFPA 70. This requirement covers electric motors and electric generators for installation and use in hazardous (classified) locations, Class I, Groups C and D and Class II, Groups E, F and G and in applicable reciprocal Zone hazardous location classifications in accordance with the National Electrical Code, NFPA 70.

This workshop will also discuss both horizontal and vertical motors and generators that have fractional and integral horsepower ratings and are for use on alternating current (ac) or direct current (dc). This requirement and course does not cover intrinsically safe motors and generators.

Each participant will receive a student workbook and a Hazardous Location Rebuilders Procedure.


Workshop Topics

  • Appendix pages – calibration, testing and record keepings and its options
  • Section General – basics of all hazardous location motors
  • Section 1 – coverage of rebuilding of specific class and group requirements
  • Upon availability, sample motor examinations demonstrated


  • Outline the requirements in the appendix pages, section general and section 1 of the rebuilders FUS procedure document
  • Apply techniques to formulate better rebuilding strategies
  • Demonstrate electrical safety procedures in the testing and verification steps of the manufacturer’s responsibilities

Learning objectives will be measured by:

  • Participant’s knowledge retention will be reinforced by answering questions from the exercises and motor demonstrations, throughout the course.

Target Audience

  • Personnel of UL Listed facilities that rebuild motors and generators and apply the UL Rebuilt Mark
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Time Requirement


Instructor-Led 1 day $625.00

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