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Description / Abstract:
This standard covers the following equipment.
Low-Voltage AC Power Circuit Breakers. Low-voltage ac power circuit breakers (not molded-case breakers) with interrupting ratings of over 10,000 amp (amperes), 1,000 volts ac or less, overed by American Standards C37.13-1963, C37.15- 1954 (Reaffirmed 1961), C37.16-1963, and C37.17- 1962.
Individually Enclosed Low-Voltage AC Power Circuit Breakers. Low-voltage ac power circuit breakers included in 19-1.1, when in individual enclosures, usually built of steel for separate mounting.
Low-Voltage AC Power Switchgear Assemblies. Low-voltage ac power switchgear assemblies, indoor and outdoor, including low-voltage ac power circuit breakers 1,000 volts ac or less, either drawout or stationary, covered by American Standard C37.20-1955.