Sirius 3RM1 Hybrid Motor Starter

Siemens Industry Inc. has added the compact Sirius 3RM1 hybrid motor starter to its switching technology portfolio. 

• Designed to be both a direct-on-line starter and a reversing starter with integrated overload protection for smaller motors with a rating of up to 3 hp
• Can be used for fans, pumps and lifting gear, as well as in machine tools and more
• Measures 22.5 mm wide
• Compact size reduces space requirements in control cabinet by up to 82%
• Uses hybrid technology that combines benefits of semiconductor and relay systems in one device
• Low-wear semiconductor components are responsible for connection and disconnection operations while energy-efficient relay system is used during operation
• Extends the motor starter’s service life and reduces maintenance demands 
• Special infeed system available which permits fast and simple implementation of group motor starter installations
• Infeed system centrally connects main circuit to infeed system to eliminate need for separate wiring of individual motor starters
• When maintenance is required, the individual motor starters from an existing assembly can be replaced with little effort due to infeed system
• Can be simply bussed in control circuit using a device connector, so there is no need for extensive manual power supply wiring between motor starters in the assembly
• Wiring errors are reduced, and commissioning of the system is completed in less time