140M Motor Protection Circuit Breakers

Our Bulletin 140M Motor Protection Circuit Breakers can provide a disconnecting means for motor branch circuit, branch-circuit and short-circuit magnetic protection, overload thermal protection, and manual switching. These devices are rated from 0.1...45 A.

Bulletin 140M Motor Protection Circuit Breakers
  • Overview
  • Product Selection
  • Specifications
  • Documentation
  • Resources


  • Includes visible trip indication
  • Offers high current limiting option
  • Offers high switching capacity
  • Available in C-, D-, and F-Frame sizes
  • Offers optional NEMA Type 3/4/12 – IP66 metal enclosure
  • 140M-D8V provides overload protection in multiple motor applications

Additional Information

Control Multiple Motors with One VFD — Many applications can use multiple motors of the same capacity that operate in parallel at the same speed. Read how we can provide branch circuit protection to variable frequency drives to motor protection products for these applications.

Motor Protection Circuit Breakers

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  • ATEX
  • CCC
  • CE Marked
  • CSA Certified
  • cULus Listed — File No. E54612; Guide No. NLRV(7)
  • cULus Listed — File No. E197878; Guide No. DIVQ(7)
  • cULus Listed — File No. E205542; Guide No. NKJH(7)
  • Suitable for use with IE3 Motors (IEC 60034-30)

The 140M C-, D-, and F-Frame Motor Protection Circuit Breakers may have two cULus Listings—as manual, self-protected combination motor controllers and as manual motor controllers (with optional approvals for motor disconnect and group installation).

When UL/CSA Listed as manual, self-protected combination motor controllers, the 140M Motor Protection Circuit Breakers provide all the necessary NEC/CEC requirements for the protection and control of individual motor branch circuits without additional protective devices.

Standards Compliance

  • CSA, C22.2 No.14
  • IEC/EN 60204-1
  • IEC/EN 60947-1
  • IEC/EN 60947-2
  • IEC/EN 60947-4-1
  • IEC/EN 60947-5-1
  • UL 508

Product Certifications

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.

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Other Resources

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