Siemens 35 → 45 A SIRIUS Motor Protection Circuit Breaker, 20 → 690 V

Protect your motors from damage caused by an overcurrent or short circuit with this circuit breaker from Siemens. It's simple to install by screwing or snapping it onto a standard DIN rail, and it can be mounted in any position for added versatility. Thanks to its surge voltage resistance of 6kV (kilovolts), it provides a high level of protection in the event of a power surge. You can use this circuit breaker in both commercial and industrial applications.

• Broad operating temperature range of -20°C to +60°C for use in a variety of demanding environments
• Power loss of 17W for energy-efficient operation
• Trips in 10 seconds or less at six times the maximum current rating for fast response times
• IP20 (ingress protection) rating means it's touch-proof and protected against objects larger than 12mm in size

The circuit breaker has a long electrical and mechanical lifespan of 50,000 switching cycles, so you can rely on it to last a long time without needing to be replaced.