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HS 2-230AC/25-40 with coil voltage 230 V AC-function-installation contactors are electromagnetically actuated switches. If a control current flows through the solenoid coil, the magnetic attraction closes a main circuit. As long as the control current flows, the switch-on position is maintained. If the control current is interrupted, a spring forces the contacts to disconnect or return to the initial position. Thanks to this design, contactors ensure electrical isolation between the control circuit and the switched circuit while at the same time being able to switch high currents. Installation contactors are only intended for disconnection to a limited extent; they must be protected against overload and short-circuit by upstream protective devices. Installation contactors in the HS series for distribution board installation are extremely quiet and are characterised by very low-noise switching operations, versatility due to their utilisation categories and by
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