ANSI/NEMA C37.50-1989 (R2010)

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.

This product replaced by:NEMA C37.50-2012 - Low - Voltage AC Power Circuit Breakers Used in Enclosures - Test Procedures

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NEMA C37.50-2012
ANSI/NEMA C37.50-1989 (R2010)

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