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The D135A works with compatible control panels to protect the battery from deep discharge in the event of an extended AC power outage. The D135A prevents deep discharge by disconnecting the battery from the control panel when battery voltage drops down to 9.5 VDC.
Main Features
Disconnects a B5512/B4512/B3512 from the battery when the battery level drops to 9.5 VDC
Required for use with compatible control panels for CAN/ULC S559
Quick and easy installation
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