RARA ULM2000 Series

RARA ULM2000 Series

The ULM2000 metal clad wire wound resistor series from RARA offers a power rating of up to 650W in free air, with available resistance values between 2Ω and 113Ω (inductive design) or between 0.45Ω and 30.5Ω (non-inductive design). These high power resistors are available with tolerances of ±1.0%, ±5.0% and ±10.0% as standard with tab terminals, as well as inductive or non-inductive resistive windings. The ULM2000 series from RARA are UL approved metal cover type with an extruded aluminium housing providing strong and rugged protection all with a temperature range from -55°C up to +200°C

  • Metal clad wire wound resistor
  • Tab terminal connections
  • Inductive resistance ranges available between 2Ω and 113Ω
  • Non-inductive resistance ranges available between 0.45Ω and 30.5Ω
  • TCR of +260 ppm/°C maximum
  • Tolerance values available of ±1.0%, ±5.0% and ±10.0%
  • Power rating of 650W in free air
  • Insulation resistance of 20MΩ minimum
  • Metal cover type with an extruded aluminium housing
  • UL approved
  • Temperature range between -55°C and +200°C
  • Short time overload of 10 x power rating for 5 seconds

Typical applications for the ULM series include:

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

The below table gives the specifications available for the ULM series including the ULM2000 resistors:

RARA ULM2000 Specifications

Extended ohmic ranges are available, please contact us for further details.

Specifications
Additional Features
  • Metal clad wire wound resistor
  • Tab connections
  • Inductive or non-inductive design
  • Insulation resistance of 20MΩ minimum
  • Temperature range of -55°C up to +200°C
  • Metal cover type with an extruded aluminium housing
  • UL approved
  • Short time overload of 10 x power rating is 5 seconds
Maximum Power Rating In free air
  • 650W
Maximum Resistance Inductive
  • 113Ω
Non-inductive
  • 30.5Ω
Minimum Resistance Inductive
  • 2Ω 
 Non-inductive
  • 0.45Ω
TCR ±260ppm/°C maximum
Tolerance
  • ±1.0% (F)
  • ±5.0% (J)
  • ±10.0% (K)

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
PDF Document RARA IRM and ULM series metal clad wire wound resistor datasheet

 

 

 

This product is available fully compliant to the RoHS EU directive 2011/65/EU.

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Tags: RARA ULM2000, ULM2000