Bosch B520 Auxiliary Power Supply Module
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Provides up to 2A of 12V standby current for Fire or Burglar Applications (4A of Burglary alarm current)
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Supervises up to two 12v 7-18Ah batteries independently for up to 36AH of capacity
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Provides up to 80 hours of standby time
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Uses the Bosch standard TR1850 plug-in transformer
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Easy to read rotary switch addressing
Addressable power supply module 12V / 2A. Up to 2 12V 7-18Ah batteries. Up to 80 hours in standby mode. Without a box.