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What Is A Shunt Resistor?

Very precise current measurement device

Provide a voltage proportional to the current flowing through it

Specified by current carrying capability and voltage output

Governed by Ohm’s law

V=I*R

V = voltage

I = current

R = resistance

How Are Shunt Resistors Made?

Shunt resistors are made using brass as the metal and special resistive elements soldered into place onto the brass or copper terminal blocks. This is then attached to a moleded base using screws to keep it in place.

How Are Shunt Resistors Installed?

Either busbar or panel mounted.

Best practice is to place the shunt in the ground return near the voltage source.

Limits potential dielectric withstanding voltage issues

Ensures all loads are accounted for

Shunt Resistor Installation Examples

Shunt Resistor Typical Applications

Battery monitoring

Off grid backup

Recreational Vehicles

Emergency Vehicles

Marine

Remote Cabins

Forklifts

PV Inverters

Power Conversion

DC motor drives / Traction

Welding equipment

Mining

Electroplating equipment

How Do You Specify Shunt Resistors?

Riedon Standard Shunt Resistor Offerings

77-173 Amps

RCS

5 – 1,200 Amps

RSA / RSB / RSC

1-500 Amps

RSN

300-1,200 Amps

RSI

1,500-2,000 Amps

RSJ

2,500-10,000 Amps

RSL

How Large Are Shunt Resistors?

Riedon Custom Shunt Resistor Examples

500 Amps - 20mV

500 Amps - 10,000mV

100 Amps - 130mV

125 Amps - 50mV

500 Amps - 20mV

500 Amps - 50mV

Why Choose Riedon Shunt Resistors?

Riedon is the manufacturer

Exceptional One-On-One customer service

Shortest lead time among our competitors

Industry price leader

Custom Requests Welcomed!

Summary

Riedon ammeter shunts provide a rugged and accurate means of measuring a wide range of currents

Many mounting configurations available to meet virtually any mounting requirement

Multitude of standard models available from stock

Custom design requests are welcome

Calibration documentation available