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The Siemens SIRIUS 3RV20211EA10 is a size S0 circuit breaker specifically designed for motor protection applications. It features a thermal overload release with an adjustable current response value ranging from 2.8 to 4 A, and a fixed N release of 52 A. The breaker has 3 poles for the main current circuit and is rated for a maximum operating voltage of 690 V.
This circuit breaker operates with a CLASS 10 trip class and provides phase failure detection. Its breaking capacity (Icu) at 400V is 100 kA, and its breaking capacity (Ics) at 400V is also 100 kA. The device is suitable for mounting on a DIN rail and has an actuator type of rotary.
With a mechanical and electrical endurance of typically 100,000 switching cycles, the 3RV20211EA10 is built for reliability. It operates within an ambient temperature range of -20 to +60 °C and has an installation altitude limit of 2,000 m above sea level. The ATEX directive protection type is Ex II (2) GD, with certificate number DMT 02 ATEX F 001.
Key electrical specifications include an operational current of 4 A at AC-3 and AC-3e at 400 V. The power loss at AC in hot operating state is 7.25 W. The insulation voltage is rated at 690 V with a degree of pollution 3, and it has a surge voltage resistance of 6 kV.
The adjustable current response value for the current-dependent overload release is 2.8 to 4 A.
The operational current rating at AC-3 and AC-3e at 400 V is 4 A.
The maximum rated operating voltage for this circuit breaker is 690 V.
The trip class is CLASS 10.
Yes, this circuit breaker has phase failure detection.
The breaking capacity (Icu and Ics) at AC at 400 V is 100 kA.
The operating temperature range is from -20 °C to +60 °C.