Siemens 54A, 65 A 3RV2 Motor Protection Circuit Breaker, 690V, 60 °C, -20 °C

Nip electrical hazards in the bud with this motor protection circuit breaker from Siemens. It features a thermal-magnetic tripping mechanism that cuts power to your equipment in the event of a short circuit or overload. This takes machine damage and electric shocks out of the equation. Thanks to a current rating of 65A, this powerhouse is your best bet for heavy-duty applications. It can withstand up to 6kV of surge voltage without suffering damage, so you won't be caught out by sudden voltage spikes. The unit's connection terminals are situated out of reach of your fingers, so you're safe from contact with live parts. You'll find breakers like this used to protect conveyor motors on assembly lines.

• Compact dimensions of 140 (height) x 55 (width) x 149mm (depth) for installation in tight setups

This unit can handle 20,000 mechanical switching cycles and 20,000 electrical switching cycles, so you can rely on it for long-term performance.