How to Connect the ShuntMon to the WatchMon Supervisor

ShuntMon works with  WatchMonPlus, WM7, WatchMon 4, WatchMonElite, and WatchMon1 and typically comes in your Starter Kit with a cable labelled “yellow”, connect the cables as per photos below:-

Follow the picture below as the wiring diagram: 

  • Maximum Battery Voltage = 650v DC
  • Current = 500A

ShuntMon can be connected to any WatchMon using the same wiring sequence.

Connection to ShuntMon

Communication 4 pin port:

Pin Colour Function
1 Red Isolated 5vdc supply
2 Green Isolated TX to WatchMon
3 Yellow Isolated RX from WatchMon
4 Black Isolated Ground
Voltage sense 2 pin port:
Pin Colour Function
1 spare
2 Red Battery Positive
Battery Current terminals
Pin Function
LEFT Battery load - to inverter/charger
RIGHT Battery Neg - from cells

Connection on WatchMon

The shunt cable is plugged into the shunt connector as shown below.  With WatchMon1 the wires are screwed in therefore extra care should be taken getting the wiring sequence correct.  

Terminal strip connections are as follows:
Pin Colour Function
12 Red 5vdc supply
13 Green RX from Shunt
14 Yellow TX to Shunt
15 Black Ground
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