RARA ULF250C Series

  • Compliant
  • RARA

Product Features

  • Flat type metal clad wire wound resistor
  • Cement filling material with an extruded aluminium housing
  • 300mm flying leads
  • UL approved
  • Excellent heat dissipation
  • Insulation resistance of 20MΩ minimum
  • Temperature range of -55°C up to +200°C
  • Short time overload of 5 x power rating is 5 seconds
  • UL

Applications

  • Motion Control
  • Renewables

Description

The ULF250C flat type metal clad wire wound resistor series from RARA, offers a power rating of up to 250W on a heat sink and available resistance values between 1Ω and 2.79kΩ. These UL approved high power and low inductance resistors are designed for industrial and other applications where space is at a premium, the flat design also allows for excellent heat dissipation. The ULF250C series from RARA offers an extruded aluminium housing providing strong and rugged protection, with cement filling material as well as tolerances as low as ±0.5%. This resistor series offers a temperature range from -55°C up to +200°C.

  • Flat space saving metal clad wire wound resistor
  • Cement filling material with an extruded aluminium housing
  • 300mm Flying leads
  • UL approved
  • Resistance ranges available between 1Ω and 2.79kΩ
  • TCR of +260 ppm/°C maximum
  • Tolerance values available of ±0.5%, ±1.0%, ±2.0%, ±5.0% and ±10.0%
  • Power rating of 250W (on a heat sink)
  • Insulation resistance of 20MΩ minimum
  • Temperature range between -55°C and +200°C
  • Short time overload of 5 x power rating for 5 seconds

 

Typical applications for the ULF series include:

  • Motor drives
  • Braking and snubbing applications
  • Power sources for industrial equipment

 

The below table gives the specifications available for the ULF series including the ULF250C resistors:

RARA ULF250C Specifications

 

Specifications

Weight 290.00000 kg
Dimensions 180.00 × 80.00 × 10.00 mm
Minimum Resistance

Series / Model

Maximum Resistance

Tolerance

, , , ,

Power Rating

Additional Features

Flat type metal clad wire wound resistorCement filling material with an extruded aluminium housing300mm flying leadsUL approvedExcellent heat dissipationInsulation resistance of 20MΩ minimumTemperat

Resistance Value

Temperature Coefficient

RARA ULF250C Series Resources

Product Datasheet

RARA IRN, ULN, IRF and ULF Technical Library

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:

 

 

DOCUMENTATION
RARA IRN, ULN, IRF and ULF series flat space saving metal clad wire wound resistor datasheet

 

 

 

RARA ULF250C Series

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