สวิตซ์กุญแจ PVA-1KS PAVIRO

สวิตซ์กุญแจ PVA-1KS PAVIRO

The PVA-1KS is an optional key switch for installation in the PAVIRO call stations. The feed lines of the key switch are monitored for short-circuits and interruptions. For more information, see the call station manual.

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