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Historical
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.
CONTENT PROVIDER
NEMA: National Electrical Manufacturers Association [nema]
NEMA: National Electrical Manufacturers Association [nema]