Payment & Shipping Terms:
|Up To 800A
motorized circuit breaker,
mpcb motor protection circuit breaker,
Siemens SIRIUS 3RV motor starter protectors
Siemens SIRIUS 3RV motor starter protectors are compact, current-limiting circuit breakers up to 100 A for motor or starter protection. They guarantee safe disconnection in the event of a short circuit and protect loads and the system from overload. They are 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. We also offer: Circuit breakers in special versions, e.g. for plant protection - also according to UL/CSA, for transformer protection or overload relay functions.
The main circuit wiring can be significantly reduced by using different infeed possibilities, such as the associated SIRIUS 3RV infeed system, the three-phase busbar system, or the 8US busbar system.
There are special advantages when using circuit breakers of sizes S00 and S0 up to 40 A: For particularly flexible installation, the devices are available with screw-type, spring-loaded and ring cable lug connections. Thanks to the appropriate link modules, the circuit breakers of these sizes can be combined easily and quickly with SIRIUS switchgear: 3RT2 contactors, 3RF34 semiconductor switching devices or even 3RW30/40 soft starters. All circuit breakers of sizes S00 to S3 are uniformly equipped with rotary knob actuators which provide a clear distinction between the switch settings of OFF, ON and TRIPPED. In the 3RV2 motor starter protectors, the power losses are 5 to 10 % lower than for the previous models thanks to new bimetal technology. This plays an important role in reducing the temperature within the control cabinet.
SiemensSIRIUS 3RV Molded Case Motor Starter Protectors up to 800 A
The 3RV10 and 3RV13 molded case motor starter protectors for up to 800 A are compact, current-limiting circuit breakers which can be used, in particular, in load feeders for the special voltages of 440 V, 480 V, 550 V and 690 V. They are used for switching and protecting three-phase motors and other loads with rated currents up to 800 A.
For the complete product spectrum of 3RV motor starter protectors up to 115 A as well as for the molded case motor starter protectors up to 800 A, configuring guides are available for creating tested combinations in accordance with common standards.
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