RARA ULM600 Series

RARA ULM600 Series

The ULM600 metal clad wire wound resistor series from RARA offers a power rating of up to 600W on a heat sink (330W in free air) with available resistance values between 0.1Ω and 94Ω (inductive design) or between 0.1Ω and 21.2Ω (non-inductive design). These high power resistors are UL approved and are available with tolerances of ±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 ULM600 series from RARA are a 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
  • Option of flying leads, parallel or series terminal connections
  • Inductive resistance ranges available between 0.1Ω and 94Ω (flying leads), 0.1Ω and 9Ω (parallel tab terminal connection) or 9.1Ω and 94Ω (serial tab terminal connection)
  • Non-inductive resistance ranges available between 0.1Ω and 21.2Ω (flying leads), 0.1Ω and 5.3Ω (parallel terminal connection) or 5.4Ω and 21.2Ω (serial terminal connection)
  • TCR of +260 ppm/°C maximum
  • Metal cover type with an extruded aluminium housing
  • Tolerance values available of ±1.0%, ±2.0%, ±5.0% and ±10.0%
  • Power rating of 600W on a heat sink (330W in free air)
  • Insulation resistance of 20MΩ minimum
  • 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 ULM600 resistors:

RARA ULM600 Specifications

* Note: Tab TP = terminal parallel connection, Tab TS = terminal serial connection

Specifications
Additional Features
  • Metal clad wire wound resistor
  • Option of flying leads, parallel or series 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 On heat sink
  • 600W
In free air
  • 330W
Maximum Resistance Inductive
  • 94Ω (flying leads)
  • 94Ω (serial tab terminal connection)
  • 9Ω (parallel tab terminal connection)
Non-inductive
  • 21.2Ω (flying leads)
  • 21.2Ω (serial tab terminal connection)
  • 5.3Ω (parallel tab terminal connection)
Minimum Resistance Inductive
  • 0.1Ω (flying leads)
  • 9.1Ω (serial tab terminal connection)
  • 0.1Ω (parallel tab terminal connection)
 Non-inductive
  • 0.1Ω (flying leads)
  • 5.4Ω (serial tab terminal connection)
  • 0.1Ω (parallel tab terminal connection)
TCR ±260ppm/°C maximum
Tolerance
  • ±1.0% (F)
  • ±2.0% (G)
  • ±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 IRV, ULV, IRM and ULM 600 to 1200 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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