Manually operate your electric motors with this Siemens motor protection circuit breaker (MPCB). It can be installed as a regulatory unit for abnormal currents and also protects against phase loss to prevent overheating. There are three operating phases, which you can easily swap between using the rotary switch. The units attaches to an electrical source by front-facing screw terminals that let you swiftly connect and disconnect it when needed. Install this device in equipment and industrial settings where electrical motors are the core components.

• 25g/11ms shock resistance for optimal vibration protection when motor is in use
• 100,000 switching cycles in main and auxiliary contact for reliable restart after disruption
• Safe to use in explosive environments

This electromechanical device is specifically designed for use with motors and isn't suited for general use. Some regular circuit breakers can protect certain motors against short circuit but they don't provide the full-scale protection a motor protection circuit breaker does.