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This Siemens 3RV21111BA10 is a robust circuit breaker from the SIRIUS line, specifically designed for motor protection applications. It features an overload relay function with an adjustable current response value ranging from 1.4 to 2 A and a fixed N-release of 26 A. The breaker is built for standard switching capacity and is suitable for use with contactors of size S00 and S0.
With a 3-pole configuration, this circuit breaker operates at a rated voltage of up to 690 V AC and has an operational current rating of 2 A at AC-3 and AC-3e conditions at 400 V. It provides a breaking capacity (Icu) of 100 kA at 240-500 V and 10 kA at 690 V. The device includes phase failure detection and is rated with a Class 10 trip class.
Designed for easy installation, the 3RV21111BA10 mounts on a standard DIN rail. It operates reliably within an ambient temperature range of -20 to +60 °C. The mechanical and electrical endurance are rated for a typical 100,000 switching cycles, ensuring long-term performance. An auxiliary switch is also available as an extension.
Key electrical specifications include a maximum operating frequency of 15 1/h for AC-3 and AC-3e. Power loss at AC in a hot operating state is 7.25 W. The insulation voltage is rated at 690 V with a pollution degree of 3, and it has a surge voltage resistance of 6 kV. This circuit breaker is compliant with RoHS3 standards and has an MSL of 1.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The adjustable current response value for the current-dependent overload release is between 1.4 and 2 A.
The rated operational current at AC-3 and AC-3e at 400V is 2 A.
The rated operating voltage is up to 690 V.
The trip class is Class 10.
It is designed for DIN rail mounting.
The ambient temperature during operation is between -20 °C and +60 °C.
The breaking capacity (Icu) at AC at 400 V is 100 kA.