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IEEE C37.29
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IEEE C37.29 1981 Edition, January 1, 1981 Standard for Low-Voltage AC Power Circuit Protectors Used in Enclosures
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Description / Abstract:
This standard covers enclosed low-voltage ac power circuit protectors:
1) Stationary type of 2-pole or 3-pole construction
2) Having one or more rated maximum voltages of 508 V and 254 V rms for application on systems having nominal voltages of 480 V and 240 V rms
3) Manually operated or power operated
4) With current limiting fuses such that the entire device is suitable for application on circuits capable of delivering not more than 200 000 A rms symmetrical short-circuit current.
NOTE — In this standard, the use of the words circuit protector shall be considered to mean enclosed low-voltage ac power circuit protector.
1) Stationary type of 2-pole or 3-pole construction
2) Having one or more rated maximum voltages of 508 V and 254 V rms for application on systems having nominal voltages of 480 V and 240 V rms
3) Manually operated or power operated
4) With current limiting fuses such that the entire device is suitable for application on circuits capable of delivering not more than 200 000 A rms symmetrical short-circuit current.
NOTE — In this standard, the use of the words circuit protector shall be considered to mean enclosed low-voltage ac power circuit protector.