RARA ULV1000 Series

RARA ULV1000 Series

The ULV1000 metal clad wire wound resistor series from RARA offers a power rating of up to 1000W on a heat sink (400W in free air) with available resistance values between 0.1Ω and 140Ω (inductive design) or between 0.1Ω and 36Ω (non-inductive design). These high power resistors are UL approved and 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 ULV1000 series from RARA have a cement moulding 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
  • Cement moulding with an extruded aluminium housing
  • Option of flying leads, parallel or series terminal connections
  • Inductive resistance ranges available between 0.17Ω and 140Ω (flying leads), 0.1Ω and 18Ω (parallel tab terminal connection) or 18.1Ω and 90Ω (serial tab terminal connection)
  • Non-inductive resistance ranges available between 0.17Ω and 36Ω (flying leads), 0.1Ω and 9Ω (parallel terminal connection) or 9.1Ω and 36Ω (serial terminal connection)
  • TCR of +260 ppm/°C maximum
  • Tolerance values available of ±1.0%, ±2.0%, ±5.0% and ±10.0%
  • Power rating of 1000W on a heat sink (400W 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 ULV series include:

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

The below table gives the specifications available for the ULV series including the ULV1000 resistors:

RARA ULV1000 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
  • UL approved
  • Cement moulding with an extruded aluminium housing
  • Short time overload of 10 x power rating is 5 seconds
Maximum Power Rating On heat sink
  • 1000W
In free air
  • 400W
Maximum Resistance Inductive
  • 140Ω (flying leads)
  • 90Ω (serial tab terminal connection)
  • 18Ω (parallel tab terminal connection)
Non-inductive
  • 36Ω (flying leads)
  • 36Ω (serial tab terminal connection)
  • 9Ω (parallel tab terminal connection)
Minimum Resistance Inductive
  • 0.17Ω (flying leads)
  • 18.1Ω (serial tab terminal connection)
  • 0.1Ω (parallel tab terminal connection)
 Non-inductive
  • 0.17Ω (flying leads)
  • 9.1Ω (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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Tags: RARA ULV1000, ULV1000