SIRIUS Motor Starter Protectors (MSP) - 3RV SIRIUS 3RV MSP's are compact, current-limiting protection device. They ensure safe shutdown in the event of a short-circuit and protect loads and plants against overload. Furthermore, they are also suitable for manually switching loads under field conditions and safely isolating the equipment from the main power supply when maintenance work or modifications need to be undertaken.
Just like all SIRIUS devices, the MSP's are suitable for side-by-side mounting up to . In addition to the usual CLOSED/OPEN positions the TRIPPED position is also indicated. SIRIUS MSP's can be connected easily and without any wiring to the .
Each SIRIUS MSP Features 4 frame sizes up to 100A at 600VAC Padlockable Manual ON/OFF switch Class 10 adjustable bimetal overload relay Magnetic trip elements for short circuit protection Side by side mounting up to 60 °C Easy connection without wiring to SIRIUS contactors and soft starters through a link module Built for a world of applications while meeting the requirements of control users worldwide.
3RV10 MSP’s can be used in a variety of applications: As a Manual Starter: All 3RV MSP’s are CSA approved as Manual Motor Controllers per CSA 22.2. This makes them ideal for applications requiring simple manual starting and stopping of motors. A separate short circuit protective device, such as a circuit breaker or fuses, is still required ahead of the MSP. As a Self-protected Manual Combination Starter: Most 3RV MSP’s have also been CSA approved, UL listed as UL508 Type E, Self-protected Manual Combination Starters. This UL listing allows the MSP to be mounted in a manually operated machine without having to add separate short circuit protection upstream. As a Component in a Combination Starter: By using a connecting module, a 3RT10 contactor can be directly mounted to the load side of a 3RV MSP. This assembly of a 3RV and a 3RT provides a complete, remotely operated, combination starter. As a Component in a Group Installation: A group motor installation indicates multiple motor controllers under one short circuit protective device, such as circuit breaker. 3RV MSP’s have a group installation short circuit current rating of 50kA at 480V and 10kA at 600V. By using a connecting module, a 3RT contactor can be directly mounted to the load side of the MSP. 3RV MSP’s have been UL tested with and without 3RT contactors for group installation..
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