The IRV500 metal clad wire wound resistor series from RARA offers a power rating of up to 500W on a heat sink (300W in free air) with available resistance values between 0.1Ω and 6.8kΩ (inductive design) or between 0.1Ω and 3kΩ (non-inductive design). These high power resistors are available with tolerances of ±0.5%, ±1.0%, ±2.0%, ±5.0% and ±10.0% as standard with other options available including flying leads or tab terminals, as well as inductive or non-inductive resistive windings. The IRV500 series from RARA has an extruded aluminium vertical housing providing strong and rugged protection all with a temperature range from -55°C up to +200°C
- Metal clad wire wound resistor
- Inductive resistance range available between 0.1Ω and 6.8kΩ (flying leads or tab terminals)
- Non-inductive resistance range available between 0.1Ω and 3kΩ (flying leads or tab terminals)
- Option of flying leads (tab terminals are standard)
- TCR of +260 ppm/°C maximum
- Tolerance values available of ±0.5%, ±1.0%, ±2.0%, ±5.0% and ±10.0%
- Power rating of 500W on a heat sink (300W in free air)
- Insulation resistance of 20MΩ minimum
- Temperature range between -55°C and +200°C
- Short time overload of 10 x power rating for 5 seconds
Typical applications for the IRV series include:
- Motor drives
- Braking and snubbing applications
- Charging for electric vehicles
- Power sources for industrial equipment
The below table gives the specifications available for the IRV series including the IRV500 resistors:
The dielectric withstanding voltage options available are AC1500V, 3500V, 4500V and 5400V for 1 minute and also available in extended ohmic ranges from 0.001Ω up to 750kΩ. Please contact us for further details.