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ANSI C37.50-1989 (R2010)

Switchgear - Low-Voltage AC Power Circuit Breakers Used in Enclosures - Test Procedures

Covers the test procedures for enclosed low-voltage ac power circuit breakers as follows: stationary or drawout circuit breakers of two- or three-pole construction; unfused or fused circuit breakers; and manually operated or power-operated circuit breakers with or without electromechanical or solid-state trip devices.

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NEMA: National Electrical Manufacturers Association [nema]

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