| Article No.: R12140A |
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Feature
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12V 140amp BSR with Cut-In:13.7V, Cut-Out:12.8V
1. Dual battery sensing
2. Fully automatic
3. Easy 3 wire connection at the battery. No need to bypass existing alternator wiring
4. Ignition protected |
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Summary
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The Battery Sensitive Relay (BSR) allows two batteries to be charged at the same time. When the engine is started and the start battery reaches 13.7 volts, the BSR engages, allowing two battery banks (start and house) to be charged simultaneously. When the voltage drops below 12.8 volts (eg the engine is stopped), the BSR disengages, separating the batteries. This system eliminates the possibility of draining the start battery and protects sensitive electronic equipment powered from the house battery from harmful engine start up spikes.
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Dimension
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67.5(L)X67.5(W)X53.5(H) mm |
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Specifications
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DC Power: 12V
Continuous Current Rate: 140A
Intermittent Current Rate: 170A
Back-up Current at 12.5V: <=13.0mA
Ignition Protection: UL1107/UL1500
Operation Temperature Range: -30~ 105 °C
Wiring Diagram :
Wiring:
Install as per the wiring diagram ensuring that the cable from the start battery positive goes to the BSR positive.
Be sure to select the correct size cable refering to the voltage drop chart..
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