• RARA

Product Features

  • Precision shunt resistor
  • 4-terminal metal-clad design
  • Resistance values between 1.3333mΩ up to 3.3333mΩ
  • Rated current of 30A, 40A, 50A or 75A
  • Tolerance values of ±0.1%, ±0.5% or ±1.0%
  • Rated voltage 100mV
  • UL Approved
  • UL


  • Available

The ULH80F precision shunt resistor from RARA has a 4-terminal metal-clad design, distinguished by a high load capacity of up to 30A, 40A, 50A or 75A as well as excellent accuracy. Isolated voltage and current connections make them suitable for very precise current measurements. Current measurement is made easy by attaching the current bus directly to the source while connecting the flexible voltage measurement wires to your monitoring electronics. Units have low inductance, heavy copper terminals. The ULH F series has a temperature range of -25°C to +100°C with a temperature coefficient of up to 30ppm/°C [20°C to 60°C].

  • Precision shunt resistor
  • 4-terminal metal-clad design
  • Resistance values of 1.3333mΩ, 2mΩ, 2.5mΩ or 3.3333mΩ
  • Rated current of 30A, 40A, 50A or 75A
  • TCR of up to +30 ppm/°C maximum
  • Tolerance values of ±0.1%, ±0.5% or ±1.0%
  • Rated voltage 100mV
  • Temperature range of -25°C to +100°C
  • UL Approved

Typical applications for the ULH80F Precision Shunt Resistor includes:

  • Battery Test & Measurement
  • Current Sensing Applications
  • Industrial Power Conversion
  • HEVs
  • Fuel Cells

RARA IRH / ULH Series Specification Table

ModelRated currentRated voltageResistance valueTolerance
IRH / ULH 300F500A100mV0.2mΩB [±0.1%] / D [±0.5%] / F [±1%]
400A50 / 100mV0.25mΩ / 0.125mΩB [±0.1%] / D [±0.5%] / F [±1%]
300A50 / 100mV0.333mΩ / 0.1666mΩB [±0.1%] / D [±0.5%] / F [±1%]
IRH / ULF 200F250A100mV0.4mΩB [±0.1%] / D [±0.5%] / F [±1%]
200A100mV0.5mΩB [±0.1%] / D [±0.5%] / F [±1%]
150A100mV0.6666mΩB [±0.1%] / D [±0.5%] / F [±1%]
100A100mV1mΩB [±0.1%] / D [±0.5%] / F [±1%]
IRH / ULH 100F75A100mV1.3333mΩB [±0.1%] / D [±0.5%] / F [±1%]
IRH / ULH 80F30A / 40A /
50A / 75A
100mV3.3333mΩ / 2.5mΩ /
2mΩ / 1.3333mΩ
B [±0.1%] / D [±0.5%] / F [±1%]

RARA is a leading manufacturer of high-power and precision resistors, covering a wide range of resistance values and applications. Please visit www.raraohm.com for more information.

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Weight 0.2 kg
Dimensions 22.00 x 41.00 x 170mm
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RARA ULH80F Resources

Product Datasheet

Supporting Manufacturer Information

  • RARA
RARA IRH F / ULH F Series Product Image


Please be advised that due to the ongoing supply issues with raw materials affecting the global electronics industry, as well as an increase in orders received by our manufacturing partners, a large number of products are facing increased lead times in recent months. For the latest lead time and stock availability, please contact one of our engineers who will be happy to discuss lead times further and the potential for alternative parts.