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We’re Exhibiting at EDS 2025
The Engineering Design Show, 8 – 9 October 2025, Coventry Building Society Arena, UK, Stand J3
The IRH200F precision shunt resistor from RARA has a 4-terminal metal-clad design, distinguished by a high load capacity of up to 250A 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].
| Weight | 0.680 kg |
|---|---|
| Dimensions | 30.00 x 60.00 x 225mm |
| Product Type | |
| Series / Model | |
| Current Rating | |
| Voltage Rating | |
| Resistance Value | |
| Tolerance | |
| Temperature Coefficient | |
| Insulation Resistance | 20MΩ minimum |
| Termination / Connection | 2x Flying Lead & 2x Tab Terminals |
| Temperature Range (°C) | -25 to +100°C |
| SKU | Current Rating | Resistance Value | Tolerance |
|---|---|---|---|
| RARA IRH200F | 250A | 400µΩ | ±0.1% |
| RARA IRH200F | 250A | 400µΩ | ±0.5% |
| RARA IRH200F | 250A | 400µΩ | ±1% |
| RARA IRH200F | 200A | 500µΩ | ±0.1% |
| RARA IRH200F | 200A | 500µΩ | ±0.5% |
| RARA IRH200F | 200A | 500µΩ | ±1% |
| RARA IRH200F | 150A | 666.6µΩ | ±0.1% |
| RARA IRH200F | 150A | 666.6µΩ | ±0.5% |
| RARA IRH200F | 150A | 666.6µΩ | ±1% |
| RARA IRH200F | 100A | 0.001Ω | ±0.1% |
| RARA IRH200F | 100A | 0.001Ω | ±0.5% |
| RARA IRH200F | 100A | 0.001Ω | ±1% |
| 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 | 0.001333Ω, 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 |
