Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 2 A Contact Rating, 0.75 kW, 690 Vac, 3P, SIRIUS

Keen to safeguard your motor's sensitive windings and coils? Put them under the protection of this overload relay from Siemens. As a thermal breaking device, it uses a bimetallic plate that melts to break the flow of electricity through your circuit when it's exposed to excessive currents known as overloads. This is a Class-10 tripping type, meaning it breaks your motor control circuit in ten seconds or less when it receives six times the maximum thermal current rating of 2A. Thanks to the manual and automatic reset options, it's easy to get back online promptly after a tripping event to minimise system downtime in applications involving pumps and motors.

• Shock-resistant, making it a safe bet in harsh settings
• IP20 rating means there's no risk of shock when you touch it with your fingers
• Also protects against short-circuit errors thanks to an integrated gG-type fuse

Yes. Thanks to its surge voltage resistance up to 6kV AC, this overload relay is also a practical pick for protecting people and equipment in the event of significant electrical spikes.