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The dual shunt is the current sensor for the Link 20. Its 50 mV @ 500 A rating means
that when 500 amps flows through it, 50 mV is generated across it. The millivolt signal is
translated into an amps display in the meter. For example: A 50 A load generates 5 mV
across the shunt and would be displayed as 050 amps. Caution: In the diagram below,
the darker wires represent primary wiring and should be able to carry full battery load
current. Size appropriately!
WIRE BY WIRE DETAIL
BATTERY COMPARTMENT
+
-
+
Battery Compartment
RED - Meter Power 12 OR 24 volts
BLUE - Bat.1 V. Sense
2 amp fuses.
Mount within
7" of battery.
+
-
DC SYSTEM
NEGATIVE
ORANGE - Bat.1 Battery (- )
GREEN - Bat.1 Load
VIOLET - Bat.2 V. Sense
YELLOW- Bat.2 Battery (- )
BROWN - Bat.2 Load
BLACK - GROUND
BAT. 2
BAT. 1
POSITIVE LEADS TO BATTERY SWITCH
ALL LOAD
GROUNDS GO ON
THIS SIDE OF
SHUNT
4 twisted pair cable
to meter location
2 amp fuse.
Mount within
7" of battery.
Dual Shunt
50 mV @ 500 A
ABOUT TWISTED WIRE:
We strongly urge you to use the 4 twisted pair cable available through your Xantrex dealer
in order to conform to the wire colors shown on this diagram. Using standard wire colors
allows us to do a much better job of troubleshooting and will aid you should a problem
develop four, five, even 10 years from today. If you are not able to obtain this wire, make
sure the shunt sense lead pairs (Orange & Green, Yellow & Brown) are twisted 4–5 twists
per inch. Twisted shunt wires minimize noise and ensure reliable current readings.
NO OTHER WIRES
CONNECT DIRECT
TO BATTERY!