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1 in stock
This listing is for a NEW Siemens 5ST3020 fault signal contact. Designed for use with compatible Siemens 5SY, 5SP, and 5SL miniature circuit breaker families, this auxiliary signaling device provides remote fault indication and status monitoring. The unit features a 1NC + 1NO contact configuration and is intended for industrial control panels, power distribution systems, building automation, and remote alarm applications.
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