Auxiliary contactor relay
A Siemens auxiliary contactor relay (model 3TH4, size 0) featuring 10 normally open (10 NO) contacts .
Siemens 3TH4310-0AL2 is a 10-pole auxiliary contactor relay (contactor relay) featuring 10 normally open (NO) contacts, operating on a 230 V AC control supply voltage at 50/60 Hz with screw terminals. It is part of the Siemens SIRIUS 3TH4 series size 0.
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