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1.00 LBS
Calculated at checkout

Product Description

500 amp DC Current Shunt

Measure large DC currents with standard volt meters or digital meters. Brass with insulated base. The 100-amp model is scaled to read 1 mV per amp, while the 500-amp model reads 0.1 mV per amp.

Information about shunts

How a shunt works: A shunt is necessary in order to measure amps and amp-hours with the TriMetric battery monitor. A shunt is an accurate, very low resistance resistor which is placed "in line" with the wire carrying the current to be measured. With the TriMetric, it is usually placed in the negative wire from the battery bank, such that all the current going into the battery (charging) or out (discharging) must pass through it. Connected in this way it will be set up to monitor "net" amp-hours in and out of the battery. (It also could be placed in series with the negative wire coming from a solar array--or other charging source--in which case it would measure only the solar array current, if that were desired--to show total solar "amp hours" production.) The shunt needs to be placed near the batteries; since these wires carry very high currents the wires from the batteries must be kept short to minimize electrical losses.

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