SW120 Double Pole on/off normally open contactors have been designed for direct current loads. They have double breaking main contacts with silver alloy contact tips which are weld resistant, hard wearing and have excellent conductivity. Series Comprised of SW120 DP N.O.; SW121 DP Changeover; SW122 Paired DP on/off N.O. for motor reversing, and SW132 DP on/off N.C.
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