Item number: 3066
EAN: 4250497819340

Installation set - automatic isolation relay

Charge two batteries at the same time with the charging current distributors and protect sensitive electronics. For CarHifi, boats, caravan, camping, solar applications, etc.
Category: Solar accessories

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starting from 53,85 €

including 19% VAT.

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There are variations of this item. Please select the variation you wish.
battery voltage
Installation set - automatic isolation relay
12 V / 140 A
24 V / 140 A


The 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.


  •     CarHifi
  •     Boats
  •     Caravan and Camping
  •     Solar systems
  •     etc.

Technical Data relay

    Constant load: 140 A
    Peak load: 170 A (max. 3 seconds)
    L x W x H mm: 67.5 x 67.5 x 53.5 mm
    Ground mounting
    Connections: 2x M6 screw terminals + 1x cable

Scope of delivery installation set:

    1x 12V 140A or 24V 140A automatic isolation relay
    1x set of pole terminals +/-
    1x 16mm² cable red, 5.0 meters
    1x 16mm² cable black, 1.0 meters
    2x AGU fuse holder with fuse 60A
    1x installation material 

Hint for resellers, distributors and non-German companies

  • larger quantities on request by eMail
  • Non-German customers with VAT ID receive invoice without VAT on request by eMail

Datasheet german

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