
The Siemens IEC Magnetic Contactor is an electrically operated switching device intended for switching applications within its electrical ratings. It is a 3-pole, non-reversing unit with a 220–240 V AC coil and auxiliary contacts configured as 1NO/1NC (2 auxiliary contacts total). Part of the SIRIUS 3RT20 series, it uses screw terminals and is rated for operation within the specified voltage and frequency ranges, with IP20 protection and DIN Rail or surface mounting.
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