REM Industrial
Certified
UL PTKQ Certified Facility — rebuilding and recertifying Division 1 hazardous location motors so your equipment returns to service compliant, documented, and inspection-ready.
What is UL PTKQ?
Hazardous Location Motor Rebuilds that Maintain Your UL Listing.
PTKQ is UL's Category Control Number for Motors and Generators, Rebuilt for Use in Hazardous Locations. Shops approved under PTKQ are authorized to rebuild UL Listed HazLoc motors and maintain the Listing when work is performed to UL requirements.
REM's certified process ensures the construction and safety criteria for Division 1 environments are preserved — so equipment is compliant and inspection-ready when it returns to service. Rebuilt HazLoc motors under PTKQ are identified by a UL Listing mark on the motor with wording indicating a "Rebuilt Electric Motor for Hazardous Locations." Keep this label intact for audits and inspections.
Scope We Cover
Division 1. Every Group.
REM's PTKQ certification covers Class I and Class II, Division 1 hazardous locations — with repairs performed to UL 674 criteria and full traceability documentation at completion.
Groups C & D — Gas & Vapor
Motors for environments where flammable gases or vapors may be present in sufficient quantities to produce an ignitable mixture — including chemical processing, oil and gas, and paint and coatings facilities.
Groups F & G — Combustible Dust
Motors for locations where combustible dust may be present in suspension or accumulation sufficient to produce an ignitable mixture — including grain handling, dust collection, and food processing operations.
UL 674 Standard
All repairs are carried out to UL 674 criteria — the standard for Electric Motors and Generators for Use in Division 1 Hazardous Locations. Group E (aluminum dust) applications may be handled by special investigation — contact our team to discuss.
When to Use a UL PTKQ Shop
Your Listing Depends on Who Does the Work.
Not all motor repair shops can maintain a UL Listing on a HazLoc motor. If the shop performing the work isn't PTKQ certified, the motor's UL Listing is voided — creating compliance exposure and potential safety liability.
Returning a Division 1 Motor to Service
Any time a UL Listed HazLoc motor requires repair and must return to a Division 1 environment, the work must be performed by a PTKQ-certified shop to maintain the Listing. Taking it to a non-certified shop voids compliance.
Insurer Requires Proof the Listing is Maintained
Many industrial insurers and facility safety programs require documented evidence that HazLoc motor repairs maintain the original UL Listing. PTKQ certification and our documented repair process provide that evidence.
Regulatory or Audit Documentation Required
Facilities subject to OSHA, NFPA 70 (NEC), or other electrical safety regulations need a documented, traceable repair record. REM provides full traceability and a UL Listing mark at completion for every PTKQ rebuild.
Industries & Applications
Anywhere Division 1 Environments Exist.
HazLoc motors are found wherever flammable gases, vapors, or combustible dusts are present. REM serves the full range of industries where PTKQ-certified repair is required for compliance and safety.
Why REM
Certified. Documented. Accountable.
UL PTKQ certification means every HazLoc motor rebuild follows documented procedures that satisfy UL's requirements — and every completed motor carries the UL Listing mark proving it.
Need a UL PTKQ Rebuild?
REM's certified facility handles Division 1 HazLoc motor rebuilds for facilities across New England. Let's talk about your motor.