Project Icon

IEEE Project

PC37.20.1 - IEEE Draft Standard for Metal-Enclosed Low Voltage (1000Vac and Below, 3200Vdc and Below) Power Circuit Breaker Switchgear

This standard covers metal-enclosed low-voltage power circuit breaker switchgear assemblies containing, but not limited to, such devices as low-voltage power circuit breakers (fused or unfused); other interrupting devices; switches, control, instrumentation, and metering; and protective and regulating equipment. This standard is concerned with enclosed, rather than open, indoor and outdoor switchgear assemblies. It includes types of equipment that are part of secondary unit substations. It does not apply to equipment covered by industrial control standards, communication switchboards, communication switching equipment, switchboards for use on board ships, or dead-front distribution switchboards. In this standard, metal-enclosed low-voltage power circuit breaker switchgear shall be called LV switchgear. For LV ac switchgear, the nominal system voltage shall be 1000 Vac or below; for LV dc switchgear, the rated maximum voltage shall be 3200 Vdc or below.
  • Status: Active Project Help

Get Involved In The Development Of This Standard

Contact the IEEE-SA Liaison Simply click here to voice your interest. Erin Spiewak
Learn More About Standards ParticipationAnyone can participate, there are a variety of programs and services to facilitate the involvement of industry and the public. More
Become a Member and Ballot on this StandardMembership empowers you to participate & lead in the development of standards. Tell Me More

Standards Help

IEEE-SA Standards Development Services are proven to expedite the process by 40%. Click here to learn more!