RARA IRH / ULH 200F, 300F Product Dimensions

RARA IRH300F

Product Features

Precision shunt resistor
4-terminal metal-clad design
Resistance values between 0.1250mΩ up to 0.3333mΩ
Rated currents from 300A up to 500A
Tolerance values of ±0.1, ±0.5% or ±1.0%
Rated voltages of 50mV or 100mV
Temperature range of -25°C to +100°C

Datasheet

Current Rating

Voltage Rating

Resistance Value

Tolerance

Clear

Custom resistance value (Ω) *
Custom AT Range (AT) *
Custom Capacity (lbs) *
Custom Pressure (Bar/PSI) *
Custom Resistance Value Element 1 (Ω) *
Custom Resistance Value Element 2 (Ω) *
Custom lead length (mm) *
Custom lead length (inches) *

Quantity

Add to Compare

The IRH300F precision shunt resistor from RARA has a 4-terminal metal-clad design, distinguished by a high load capacity of up to 500A 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 IRH / 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 between 0.1250mΩ up to 0.3333mΩ
Rated currents from 300A up to 500A
TCR of up to +30 ppm/°C maximum
Tolerance values of ±0.1%, ±0.5% or ±1.0%
Rated voltages of 50mV or 100mV
Temperature range of -25°C to +100°C

Typical applications for the IRH300F Precision Shunt Resistor includes:

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

RARA IRH / ULH Series Specification Table

Model	Rated current	Rated voltage	Resistance value	Tolerance
IRH / ULH 300F	500A	100mV	0.2mΩ	B [±0.1%] / D [±0.5%] / F [±1%]
	400A	50 / 100mV	0.25mΩ / 0.125mΩ	B [±0.1%] / D [±0.5%] / F [±1%]
	300A	50 / 100mV	0.333mΩ / 0.1666mΩ	B [±0.1%] / D [±0.5%] / F [±1%]
IRH / ULF 200F	250A	100mV	0.4mΩ	B [±0.1%] / D [±0.5%] / F [±1%]
	200A	100mV	0.5mΩ	B [±0.1%] / D [±0.5%] / F [±1%]
	150A	100mV	0.6666mΩ	B [±0.1%] / D [±0.5%] / F [±1%]
	100A	100mV	1mΩ	B [±0.1%] / D [±0.5%] / F [±1%]
IRH / ULH 100F	75A	100mV	1.3333mΩ	B [±0.1%] / D [±0.5%] / F [±1%]
IRH / ULH 80F	30A / 40A / 50A / 75A	100mV	3.3333mΩ / 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.

Specifications

Weight	0.6 kg
Dimensions	30.00 x 60.00 x 215.00mm
Product Type	Metal Clad, Wirewound, Resistor
Series / Model	IRH F
Current Rating	300A, 400A, 500A
Voltage Rating	50mV, 100mV
Resistance Value	125µΩ, 166.6µΩ, 200µΩ, 250µΩ, 333.3µΩ
Insulation Resistance	20MΩ minimum
Tolerance	±0.1%, ±0.5%, ±1%
Temperature Coefficient	±30 ppm/°C
Temperature Range (°C)	-25 to +100°C
Termination / Connection	2x Flying Lead & 2x Tab Terminals

Product Variations

SKU	Current Rating	Voltage Rating	Resistance Value	Tolerance
RARA IRH300F	400A	100mV	125µΩ	±0.1%
RARA IRH300F	400A	50mV	125µΩ	±0.1%
RARA IRH300F	400A	100mV	125µΩ	±0.5%
RARA IRH300F	400A	50mV	125µΩ	±0.5%
RARA IRH300F	400A	100mV	125µΩ	±1%
RARA IRH300F	400A	50mV	125µΩ	±1%
RARA IRH300F	300A	100mV	166.6µΩ	±0.1%
RARA IRH300F	300A	50mV	166.6µΩ	±0.1%
RARA IRH300F	300A	100mV	166.6µΩ	±0.5%
RARA IRH300F	300A	50mV	166.6µΩ	±0.5%
RARA IRH300F	300A	100mV	166.6µΩ	±1%
RARA IRH300F	300A	50mV	166.6µΩ	±1%
RARA IRH300F	500A	100mV	200µΩ	±0.1%
RARA IRH300F	500A	100mV	200µΩ	±0.5%
RARA IRH300F	500A	100mV	200µΩ	±1%
RARA IRH300F	400A	100mV	250µΩ	±0.1%
RARA IRH300F	400A	50mV	250µΩ	±0.1%
RARA IRH300F	400A	100mV	250µΩ	±0.5%
RARA IRH300F	400A	50mV	250µΩ	±0.5%
RARA IRH300F	400A	100mV	250µΩ	±1%
RARA IRH300F	400A	50mV	250µΩ	±1%
RARA IRH300F	300A	100mV	333.3µΩ	±0.1%
RARA IRH300F	300A	50mV	333.3µΩ	±0.1%
RARA IRH300F	300A	100mV	333.3µΩ	±0.5%
RARA IRH300F	300A	50mV	333.3µΩ	±0.5%
RARA IRH300F	300A	100mV	333.3µΩ	±1%
RARA IRH300F	300A	50mV	333.3µΩ	±1%

IRH F Series Products

Current Sensing & Low Resistance Resistors

Product name	Dimensions	Current Rating	Voltage Rating	Resistance Value	Tolerance	Temperature Coefficient
RARA IRH80F	22.00 x 41.00 x 170mm	30A, 40A, 50A, 75A	100mV	0.001333Ω, 0.002Ω, 0.0025Ω, 0.0033333Ω	±0.1%, ±0.5%, ±1%	±30 ppm/°C	View Product
RARA IRH100F	30 x 60 x 275mm	75A	100mV	0.0013333Ω	±0.1%, ±0.5%, ±1%	±30 ppm/°C	View Product
RARA IRH200F	30.00 x 60.00 x 225mm	100A, 150A, 200A, 250A	100mV	400µΩ, 500µΩ, 666.6µΩ, 0.001Ω	±0.1%, ±0.5%, ±1%	±30 ppm/°C	View Product
RARA IRH300F	30.00 x 60.00 x 215.00mm	300A, 400A, 500A	50mV, 100mV	125µΩ, 166.6µΩ, 200µΩ, 250µΩ, 333.3µΩ	±0.1%, ±0.5%, ±1%	±30 ppm/°C	View Product
RARA ULH300F	30.00 x 60.00 x 215.00mm	300A, 400A, 500A	50mV, 100mV	125µΩ, 166.6µΩ, 200µΩ, 250µΩ, 333.3µΩ	±0.1%, ±0.5%, ±1%	±30 ppm/°C	View Product

Aerospace

Audio

Energy

EV & Automotive

Healthcare & Medical

Industrial

Military & Defense

Oil & Gas

Renewables

Get in touch

RARA IRH300F

Product Features

Any questions, contact us?

Why buy from Rhopoint?

Engineering Calculators

Application Notes

Typical applications for the IRH300F Precision Shunt Resistor includes:

RARA IRH / ULH Series Specification Table

Specifications

Product Variations

IRH F Series Products

Current Sensing & Low Resistance Resistors

Resources

Product Datasheet

Supporting Manufacturer Information

Related Products

RARA IRH80F

RARA IRH100F

RARA IRH200F

Contact Us

Help & Services

Privacy & Legal

Follow Us