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Grainger Auxiliary Switch
Supplier: Grainger 170J10
The Siemens 3RT20 Auxiliary Switch is an accessory for Siemens 3RT20 contactors. It mounts directly to the contactor and provides 1 normally open and 1 normally closed auxiliary contact. The contacts are rated for 10A at 480VAC. The switch allows monitoring of the contactor position. It can be used for interlocking, signaling and controlling external circuits. The polyamide housing provides protection to IP20. This auxiliary switch works with 3RT20 contactors up to size 5.
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