Take electrical maintenance tasks safely in hand using this isolator switch from Siemens. It cuts power to your circuit to set your system up for safe working at the flick of a switch. Thanks to its three poles, the unit hooks up to three-phase equipment without a hitch. A simple rotary dial actuator helps make quick work of isolating your circuit. As shown by the component's IP65 rating, it's dust-tight and protected against low-pressure water jets, so it's a safe bet for use in harsh industrial settings. You'll find isolator switches like this one used in electrical substations and with manufacturing equipment.

• Switching frequency of 50 operations an hour for heavy-duty use
• Compact dimensions of 152 (H) x 100 (W) x 117mm (D) to fit easily into crowded setups
• Wide operating temperature range between -25°C and +55°C for use in demanding environments
• Durable plastic housing for resistance to wear and abrasion

This product has a long mechanical lifespan of 100,000 operations, so it's sure to provide long-lasting circuit control.