RARA IRH / ULH 200F, 300F Product Dimensions

RARA ULH300F

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
UL Approved

The ULH300F 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 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
UL Approved

Typical applications for the ULH300F 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
Current Rating	300A, 400A, 500A
Maximum Resistance	333.3µΩ
Minimum Resistance	125µΩ
Resistance Value	125µΩ, 166.6µΩ, 200µΩ, 250µΩ, 333.3µΩ
Series / Model	IRH F
Temperature Coefficient	±30 ppm/°C
Temperature Range (°C)	-25 to +100°C
Termination / Connection	2x Flying Lead & 2x Tab Terminals
Tolerance	±0.1%, ±0.5%, ±1%
Voltage Rating	50mV, 100mV

Product Variations

SKU	Current Rating	Resistance Value	Tolerance	Voltage Rating
RARA ULH300F	400A	125µΩ	±0.1%	100mV	Request Quote
RARA ULH300F	400A	125µΩ	±0.1%	50mV	Request Quote
RARA ULH300F	400A	125µΩ	±0.5%	100mV	Request Quote
RARA ULH300F	400A	125µΩ	±0.5%	50mV	Request Quote
RARA ULH300F	400A	125µΩ	±1%	100mV	Request Quote
RARA ULH300F	400A	125µΩ	±1%	50mV	Request Quote
RARA ULH300F	300A	166.6µΩ	±0.1%	100mV	Request Quote
RARA ULH300F	300A	166.6µΩ	±0.1%	50mV	Request Quote
RARA ULH300F	300A	166.6µΩ	±0.5%	100mV	Request Quote
RARA ULH300F	300A	166.6µΩ	±0.5%	50mV	Request Quote
RARA ULH300F	300A	166.6µΩ	±1%	100mV	Request Quote
RARA ULH300F	300A	166.6µΩ	±1%	50mV	Request Quote
RARA ULH300F	500A	200µΩ	±0.1%	100mV	Request Quote
RARA ULH300F	500A	200µΩ	±0.5%	100mV	Request Quote
RARA ULH300F	500A	200µΩ	±1%	100mV	Request Quote
RARA ULH300F	400A	250µΩ	±0.1%	100mV	Request Quote
RARA ULH300F	400A	250µΩ	±0.1%	50mV	Request Quote
RARA ULH300F	400A	250µΩ	±0.5%	100mV	Request Quote
RARA ULH300F	400A	250µΩ	±0.5%	50mV	Request Quote
RARA ULH300F	400A	250µΩ	±1%	100mV	Request Quote
RARA ULH300F	400A	250µΩ	±1%	50mV	Request Quote
RARA ULH300F	300A	333.3µΩ	±0.1%	100mV	Request Quote
RARA ULH300F	300A	333.3µΩ	±0.1%	50mV	Request Quote
RARA ULH300F	300A	333.3µΩ	±0.5%	100mV	Request Quote
RARA ULH300F	300A	333.3µΩ	±0.5%	50mV	Request Quote
RARA ULH300F	300A	333.3µΩ	±1%	100mV	Request Quote
RARA ULH300F	300A	333.3µΩ	±1%	50mV	Request Quote

IRH F Series Products

Current Sensing & Low Resistance Resistors

Product name	Dimensions	Current Rating	Voltage Rating	Resistance Value	Tolerance	Temperature Coefficient	Add to enquiry
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	Add to Enquiry
RARA IRH100F	30 x 60 x 275mm	75A	100mV	0.0013333Ω	±0.1%, ±0.5%, ±1%	±30 ppm/°C	Add to Enquiry
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	Add to Enquiry
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	Add to Enquiry
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	Add to Enquiry

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) *

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RARA ULH300F

Product Features

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Application Notes

Typical applications for the ULH300F 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

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