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 -25ยฐC to +100ยฐC with a temperature coefficient of up to 30ppm/ยฐC [20ยฐC to 60ยฐC].
| Model | Rated current | Rated voltage | Resistance value | Tolerance |
|---|---|---|---|---|
| IRH / ULH 300F | 500A | 100mV | 0.2mฮฉ | B [ยฑ0.1%] / D [ยฑ0.5%] / F [ยฑ1%] |
| 400A | 50 / 100mV | 0.25mฮฉ / 0.125mฮฉ | B [ยฑ0.1%] / D [ยฑ0.5%] / F [ยฑ1%] | |
| 300A | 50 / 100mV | 0.333mฮฉ / 0.1666mฮฉ | B [ยฑ0.1%] / D [ยฑ0.5%] / F [ยฑ1%] | |
| IRH / ULF 200F | 250A | 100mV | 0.4mฮฉ | B [ยฑ0.1%] / D [ยฑ0.5%] / F [ยฑ1%] |
| 200A | 100mV | 0.5mฮฉ | B [ยฑ0.1%] / D [ยฑ0.5%] / F [ยฑ1%] | |
| 150A | 100mV | 0.6666mฮฉ | B [ยฑ0.1%] / D [ยฑ0.5%] / F [ยฑ1%] | |
| 100A | 100mV | 1mฮฉ | B [ยฑ0.1%] / D [ยฑ0.5%] / F [ยฑ1%] | |
| IRH / ULH 100F | 75A | 100mV | 1.3333mฮฉ | B [ยฑ0.1%] / D [ยฑ0.5%] / F [ยฑ1%] |
| IRH / ULH 80F | 30A / 40A / 50A / 75A | 100mV | 3.3333mฮฉ / 2.5mฮฉ / 2mฮฉ / 1.3333mฮฉ | B [ยฑ0.1%] / D [ยฑ0.5%] / F [ยฑ1%] |
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.
| Weight | 0.6 kg |
|---|---|
| Dimensions | 30.00 x 60.00 x 215.00mm |
| Current Rating | |
| Maximum Resistance | 333.3ยตโฆ |
| Minimum Resistance | 125ยตโฆ |
| Resistance Value | |
| Series / Model | |
| Temperature Coefficient | |
| Temperature Range (ยฐC) | -25 to +100ยฐC |
| Termination / Connection | 2x Flying Lead & 2x Tab Terminals |
| Tolerance | |
| Voltage Rating |
| SKU | Current Rating | Resistance Value | Tolerance | Voltage Rating |
|---|---|---|---|---|
| RARA ULH300F | 400A | 125ยตโฆ | ยฑ0.1% | 100mV |
| RARA ULH300F | 400A | 125ยตโฆ | ยฑ0.1% | 50mV |
| RARA ULH300F | 400A | 125ยตโฆ | ยฑ0.5% | 100mV |
| RARA ULH300F | 400A | 125ยตโฆ | ยฑ0.5% | 50mV |
| RARA ULH300F | 400A | 125ยตโฆ | ยฑ1% | 100mV |
| RARA ULH300F | 400A | 125ยตโฆ | ยฑ1% | 50mV |
| RARA ULH300F | 300A | 166.6ยตโฆ | ยฑ0.1% | 100mV |
| RARA ULH300F | 300A | 166.6ยตโฆ | ยฑ0.1% | 50mV |
| RARA ULH300F | 300A | 166.6ยตโฆ | ยฑ0.5% | 100mV |
| RARA ULH300F | 300A | 166.6ยตโฆ | ยฑ0.5% | 50mV |
| RARA ULH300F | 300A | 166.6ยตโฆ | ยฑ1% | 100mV |
| RARA ULH300F | 300A | 166.6ยตโฆ | ยฑ1% | 50mV |
| RARA ULH300F | 500A | 200ยตโฆ | ยฑ0.1% | 100mV |
| RARA ULH300F | 500A | 200ยตโฆ | ยฑ0.5% | 100mV |
| RARA ULH300F | 500A | 200ยตโฆ | ยฑ1% | 100mV |
| RARA ULH300F | 400A | 250ยตโฆ | ยฑ0.1% | 100mV |
| RARA ULH300F | 400A | 250ยตโฆ | ยฑ0.1% | 50mV |
| RARA ULH300F | 400A | 250ยตโฆ | ยฑ0.5% | 100mV |
| RARA ULH300F | 400A | 250ยตโฆ | ยฑ0.5% | 50mV |
| RARA ULH300F | 400A | 250ยตโฆ | ยฑ1% | 100mV |
| RARA ULH300F | 400A | 250ยตโฆ | ยฑ1% | 50mV |
| RARA ULH300F | 300A | 333.3ยตโฆ | ยฑ0.1% | 100mV |
| RARA ULH300F | 300A | 333.3ยตโฆ | ยฑ0.1% | 50mV |
| RARA ULH300F | 300A | 333.3ยตโฆ | ยฑ0.5% | 100mV |
| RARA ULH300F | 300A | 333.3ยตโฆ | ยฑ0.5% | 50mV |
| RARA ULH300F | 300A | 333.3ยตโฆ | ยฑ1% | 100mV |
| RARA ULH300F | 300A | 333.3ยตโฆ | ยฑ1% | 50mV |
| Product name | Dimensions | Current Rating | Voltage Rating | Resistance Value | Tolerance | Temperature Coefficient | Datasheet | ||
|---|---|---|---|---|---|---|---|---|---|
| RARA IRH80F | 22.00 x 41.00 x 170mm | 30A, 40A, 50A, 75A | 100mV | 0.001333โฆ, 0.002โฆ, 0.0025โฆ, 0.0033333โฆ | ยฑ0.1%, ยฑ0.5%, ยฑ1% | ยฑ30 ppm/ยฐC | View Product | |
|
| RARA IRH100F | 30 x 60 x 275mm | 75A | 100mV | 0.0013333ฮฉ | ยฑ0.1%, ยฑ0.5%, ยฑ1% | ยฑ30 ppm/ยฐC | View Product | |
|
| RARA IRH200F | 30.00 x 60.00 x 225mm | 100A, 150A, 200A, 250A | 100mV | 400ยตโฆ, 500ยตโฆ, 666.6ยตโฆ, 0.001โฆ | ยฑ0.1%, ยฑ0.5%, ยฑ1% | ยฑ30 ppm/ยฐC | View Product | |
|
| RARA IRH300F | 30.00 x 60.00 x 215.00mm | 300A, 400A, 500A | 50mV, 100mV | 125ยตโฆ, 166.6ยตโฆ, 200ยตโฆ, 250ยตโฆ, 333.3ยตโฆ | ยฑ0.1%, ยฑ0.5%, ยฑ1% | ยฑ30 ppm/ยฐC | View Product | |
|
| RARA ULH300F | 30.00 x 60.00 x 215.00mm | 300A, 400A, 500A | 50mV, 100mV | 125ยตโฆ, 166.6ยตโฆ, 200ยตโฆ, 250ยตโฆ, 333.3ยตโฆ | ยฑ0.1%, ยฑ0.5%, ยฑ1% | ยฑ30 ppm/ยฐC | View Product |
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