| Kilo Amps (Ka) | 55 Ka |
| Thermal Adjustment Range (A) | 27-32 |
Siemens Sirius Motor Protection 27-32A/55Ka 3RV2021-4EA10 As circuit breaker for motor protection Motor Protection Switches protect motors and installations against the effects of overcurrent and short circuit. It is connected to the motor circuit. It is a command and protection element designed to protect against short-circuit current and phase failure, as well as to manually activate and deactivate the electric motor.
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