Description
The ULV300 metal clad wire wound resistor series from RARA offers a power rating of up to 300W on a heat sink (210W in free air) with available resistance values between 0.1Ω and 2.7kΩ (inductive design) or between 0.1Ω and 1.5kΩ (non-inductive design). These high power resistors are available being UL approved and 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 ULV300 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
Features
Metal clad wire wound resistor
Inductive resistance range available between 0.1? and 2.7k? (flying leads) or 0.1? and 300? (tab terminals)
Non-inductive resistance range available between 0.1? and 1.5k? (flying leads) or 0.1? and 300? (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 300W on a heat sink (210W in free air)
Insulation resistance of 20M? minimum
Temperature range between -55°C and +200°C
UL approved
Short time overload of 10 x power rating for 5 seconds
Typical applications for the ULV 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 ULV series including the ULV300 resistors:
Manufacturer:Electronic Components
Datasheet:Others/IRH_ULH_IRV_and_ULV.pdf
