The Siemens 3RV1021-1HA10 SIRIUS Circuit Breaker can be used as Type E self-protected manual combination starters per UL508, or as components in Group Installation to turn motors on and off. The device has a built-in heater element that provides overload protection and magnetic trip elements to protect the motor. When the 3RV is used as a component in a Group Installation, multiple MSP's (Motor Starter Protectors) can be installed below one circuit breaker to protect its own motor. A contactor can be mounted to the MSP to provide a remotely operated starter.
The 690V 50/60Hz 5.50-8.00A Circuit Breaker can used to protect three-phase motors to 45kW at 400V AC. The circuit breaker 3RV1 can be used with its short-circuit and overload protection for motor protection, transformer protection and system protection.
The circuit breaker can guarantee safe disconnection in the event of a short circuit, and protect loads and the system from overload. It is also suitable for normal switching duty with loads that have a small number of switching operations as well as for reliable isolation of the equipment from the supply system.
- Size: S0
- Operating voltage: 690V 50/60Hz
- Dimensions: 91(L) x 45(W)mm
- Instantaneous short circuit release: 52.0A
- Short circuit breaking capacity: 65kA
- Adjustment range: 2.8 - 4.0A
- Type: SIRIUS 3RV1 Circuit Breaker
- Manufacturer's part: Siemens 3RV1021-1EA10
| Breaking Capacity |
65kA |
| Current Rating |
2.8-1A |
| Number of Poles |
3 |
| Voltage Rating |
690V |
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