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CSA C22.2 NO 5.1

2002 Edition, 1991

Complete Document

Moulded Case Circuit Breakers; Industrial Products



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Superseded By: CSA C22.2 NO 5

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Additional Comments:
W/D S/S BY CSA C22.2 NO 5
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Product Details:

  • Revision: 2002 Edition, 1991
  • Published Date: April 2002
  • Status: Superseded By:
  • Superseded By: CSA C22.2 NO 5
  • Document Language: English
  • Published By: CSA Group (CSA)
  • Page Count: 125
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This Standard covers the construction and test of moulded case circuit breakers (hereafter referred to for convenience as breakers) rated at 6000 A or less and 600 V or less, intended for the protection of services, feeders, and branch circuits in accordance with the Canadian Electrical Code, Part I.

This Standard does not apply to so-called moulded case switches that do not incorporate automatic overcurrent tripping devices.

Clause 7 of this Standard applies to adjustable type Circuit breakers and supplements requirements covered in Clause 1 to 6. 

Clause 8 of this Standard applies to accessories that mount in on a breaker to provide an additional operating or indicating function.

Clause 9 of this Standard applies to fused circuit breakers and high-fault protectors and supplements the other requirements-of this Standard. 

Clause 10 of this Standard appliest o instantaneous-trip circuit breakers and supplements the other requirements of this Standard
CSA B51