RARA RH 25C Series

  • RARA

Product Features

  • Metal clad wire wound resistor
  • Insulation resistance of 20MΩ minimum
  • Temperature range of -55°C up to +250°C
  • Cement moulding within aluminium housing
  • Short time overload of 5 x power rating is 5 seconds
  • High stability at conventional power ratings
  • Mounts on chassis to utilise heat sink effect

Applications

  • Motion Control
  • Renewables
  • Compliant

Description

The RH 25C metal clad wire wound resistor series from RARA offers a power rating of up to 20W on a heat sink (8W in free air) with available resistance values between 0.27Ω and 25kΩ (inductive design) or between 0.1Ω and 10kΩ (non-inductive design). These high power resistors are available with tolerances of ±0.1%, ±0.25%, ±0.5% and ±1.0% depending the the resistance value required, as well as the option of inductive or non-inductive resistive windings. The RH 25C series from RARA has a cement moulding within an aluminium housing which mounts on to a chassis to utilise the heat sink effect, all with a temperature range from -55°C up to +250°C

  • Metal clad wire wound resistor
  • Inductive resistance range available between 0.27Ω and 25kΩ
  • Non-inductive resistance range available between 0.1Ω and 10kΩ
  • TCR from as low as ±40 ppm/°C between 20Ω and 25kΩ (inductive) or between 20Ω and 10kΩ (non-inductive)
  • Tolerance from as low as ±0.1% from 1Ω up to 25kΩ (inductive) or from 1Ω up to 20kΩ (non-inductive)
  • Power rating of 20W on a heat sink (8W in free air)
  • Insulation resistance of 20MΩ minimum
  • Temperature range between -55°C and +250°C
  • High stability at conventional power ratings
  • Short time overload of 5 x power rating for 5 seconds


The below table gives the specifications available for the RH series including the RH 25C resistors:

RARA RH 25C Specifications

*30W on heat sink (178x127x51x1mm), 50W on heat sink (305x305x2mm)

*Option of ±20 ppm/°C is available upon request, please contact us for further details


Specifications

Weight 16.50000 kg
Dimensions 49.40 × 29.60 × 16.00 mm
Series / Model

Minimum Resistance

Maximum Resistance

Tolerance

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Power Rating

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Additional Features

Metal clad wire wound resistorInsulation resistance of 20MΩ minimumTemperature range of -55°C up to +250°CCement moulding within aluminium housingShort time overload of 5 x power rating is 5 secon

Resistance Value

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Temperature Coefficient

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Inductive or Non Inductive

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RARA RH and FRH 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 RH and FRH series metal clad wire wound resistor datasheet

 

 

 

RARA RH 25C Series

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