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This Siemens 3RV27214BD10 circuit breaker is designed for system protection according to UL 489 and CSA C22.2 No. 5 standards. It operates as a thermal magnetic breaker in size S0, suitable for DIN rail mounting.
The device offers a rated operational current of 20A and can handle operating voltages up to 690V AC. It provides a breaking capacity of up to 55 kA at 400V AC. The circuit breaker has a mechanical and electrical endurance of typically 100,000 switching cycles.
Key electrical specifications include a 20A operational current at AC-3 and AC-3e ratings at 400V, with corresponding operating power ratings up to 7.5 kW. The instantaneous short-circuit trip unit has a response value of 260A. It is also rated for motor protection, yielding mechanical performance of up to 3 hp for single-phase AC motors at 230V.
Environmental conditions for operation include an ambient temperature range of -20 to +60 °C and a maximum installation altitude of 2,000 meters. The circuit breaker is designed for standard switching capacity.
The operating voltage is 20 to 690 V AC at rated frequency 50/60 Hz.
The ambient temperature during operation is -20 to +60 °C.
It mounts on a DIN rail.
The ultimate short-circuit breaking capacity (Icu) is 100 kA at 240 V AC, 55 kA at 400 V, 10 kA at 500 V, and 4 kA at 690 V.
Total power loss is 10.5 W, with 3.5 W per pole.
The mechanical service life is 100,000 switching cycles for main contacts.
No, it has 0 NC, 0 NO, and 0 CO auxiliary contacts.