Automatic battery isolating relay
Available in 12V or 24V version
This relay is ideally suited for applications with limited motor space and high power requirements.
no voltage drop due to high-end components
currenty carrying capacity max. 140A
sensor for both batteries
fully automatic control
with over-voltage protection
easy 3-wire connection at battery. No need to bypass alternator wiring
dimensions (mm): 67,5 (L), 67,5 (W), 53,5 (H)
connection via tin-plated threaded bolts M6
Switch-on: 13.7V +0.1 / 27.47V +0.1
Cut-off voltage: 12.8V +0.15 / 25.6V +0.15
no connection of alternator (D+) necessary
the electronic module automatically detects the startup of the charging alternator
Suitable for alternators and charging currents of up to 140A
OperationThe charging current distributor allows charging of two batteries simultaneously. As soon as the engine starts and the starter battery reaches the switch-on voltage, the distributor is activated so that two separate batteries (starter and secondary battery) can be charged at the same time.
If the voltage drops below the cut-off voltage (e.g. when the engine is turned off), the distributor is deactivated and the batteries are isolated from each other. This system ensures that the starter battery is not discharged. Additionally, it protects the sensitive electronics connected to the secondary battery form voltage spikes that can occur when the engine starts.
Connection is very easy, the distributor has 3 outputs:
- 1x plus (+) starter battery
- 1x plus (+) secondary battery
- 1x ground (-) (black cable)