Siemens 3RT2 Series Contactor, 24 V dc Coil, 3-Pole, 7 A, 3 kW, 3NO, 400 V ac

Choose this three-pole contactor from Siemens' SIRIUS Innovation range for switching loads such as motors or lighting at currents of up to 7A. The 3NO (normally open) configuration means it switches the circuit when the input is energised. The unit is built to stand up to weather extremes and strong vibration, and its compact design helps save space in your cabinet. You can use this device with the new IE3/IE4 generation of motors, and it fits together easily with other parts in the range, so you can build bespoke systems.

• Operating temperature range of -25°C to +60°C for use in challenging conditions
• Screw terminals help you quickly make secure connections
• Power rating of 3kW means you can use it to switch a wide range of appliances
• 24V DC voltage rating offers safe operation, efficiency and resistance to control circuit drop

A contactor is an electrical device used to switch a circuit on or off. It contains a coil that generates an electromagnetic field when energised, moving an armature to switch the load.