Electrical safety is at your fingertips with this isolator switch from Siemens. It has an easy-to-use rotary handle, so you simply twist the dial through 90° to power up or power down a full circuit in isolation from the rest of the system. It's a practical choice for safe maintenance in the event of a localised power failure, helping you fix the fault without impacting productivity elsewhere. Because you can lock it in the off position, there's no chance of accidental reactivation before you're ready. A hefty 7.5kW rating means this sturdy device can cope with high-power applications. You'll find switches like this used with AC motors, air conditioning equipment and solar power installations.

• Wide operating temperature range between -25°C and +55°C for compatibility with extreme conditions
• 340A resistance rating means it can handle short-term overcurrents with ease
• Panel-mounted for an ergonomic fit
• Finger-safe housing prevents electric shocks
• Mechanical durability of 100,000 cycles for a long service life

Yes. An IP65 rating means this switch resists low-pressure jets from all directions, so it can handle a bit of water without breaking stride.