RARA RH25 (Inductive)

  • RARA


Weight 16.50000 kg
Dimensions 16.00 x 29.60 x 49.40mm
Product Type


Series / Model

Filling Material

Inductive or Non Inductive

Resistance Value

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Minimum Resistance

Maximum Resistance

Power Rating


Temperature Coefficient

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RARA RH25 (Inductive)

  • Compliant

Series Products

Electronic Components

RARA RH25 (Inductive) Series Products
 Product nameSKUDimensionsProduct TypePower RatingMinimum ResistanceMaximum ResistanceToleranceTemperature CoefficientFilling MaterialDatasheetAdd to enquiry
RARA RH25 (Inductive)RH25-1-116.00 x 29.60 x 49.40mmWirewound, Resistor8W, 20W0.27Ω25kΩ±0.1%, ±0.25%, ±0.5%, ±1%, ±2%, ±5%±40 ppm/°C, ±50 ppm/°C, ±100 ppm/°CCement Add to Enquiry
RARA RH25 (Non-Inductive)RH25-116.00 x 29.60 x 49.40mmWirewound, Resistor8W, 20W0.1Ω10kΩ±0.1%, ±0.25%, ±0.5%, ±1%, ±2%, ±5%±40 ppm/°C, ±50 ppm/°C, ±100 ppm/°CCement Add to Enquiry
RARA RH50 (Inductive)RH25-1-2-116.00 x 29.60 x 70.8mmWirewound, Shunt, Resistor10W, 30W, 50W0.68Ω50kΩ±0.1%, ±0.25%, ±0.5%, ±1%, ±2%, ±5%±40 ppm/°C, ±50 ppm/°C, ±100 ppm/°CCement Add to Enquiry
RARA RH50 (Non-Inductive)RH25-1-216.00 x 29.60 x 70.8mmWirewound, Resistor10W, 30W, 50W0.2Ω20kΩ±0.1%, ±0.25%, ±0.5%, ±1%, ±2%, ±5%±40 ppm/°C, ±50 ppm/°C, ±100 ppm/°CCement Add to Enquiry

Temperature Coefficient is dependent on the resistant range. These are as follows; ±100PPM/°C (0.2Ω – 0.976Ω), ±50PPM/°C (1Ω – 19.6Ω) and ±20PPM/°C (20Ω+).

RH Series Description

The RH series from RARA are metal clad wirewound resistors with an aluminium housing covering cement moulding. These resistors offers a power rating from 20W up to 50W* on a suitable heat sink and 8W or 10W in free air depending on the model. The resistance range varies depending on the model and inductivity. These range from 0.1kΩ to 50KΩ. Full details can be found on the individual product pages. These high power resistors are available with tolerances of ±0.1% (>1Ω), ±0.25% (>0.4Ω), ±0.5% (>0.2Ω), ±1% (>0.1Ω), ±2% (>0.05Ω) and ±5% (>0.02Ω).  All RH resistors have an operating temperature of -55°C to +250°C. Derating is required for reduced chassis mounting area and for high ambient temperatures.

  • Metal clad wire wound resistor
  • Resistance ranges available between 0.1Ω and 50KΩ **
  • TCRs of ±40 ppm/°C, ±50 ppm/°C and ±100 ppm/°C ***
  • Tolerances of ±0.1%, ±0.25%, ±0.5%, ±1%, ±2% and ±5% available
  • 25C Power rating of 20W on a heat sink or 8W in free air
  • 50C Power rating of 50W* on a heat sink or 10W 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

* 30W on heat sink (178x127x51x1mm), 50W on heat sink (305x305x2mm)
** Exact ranges as per the product pages for each model.
*** ±20 ppm/°C is available upon request

RARA Electronics Corporation is a renowned manufacturer specialising in industrial and braking resistors. They provide high-quality, durable resistors for various industrial applications, including power generation, transport, and renewable energy sectors, ensuring reliability and efficiency in demanding operational environments. Their products are known for performance and customisation options. Please visit www.raraohm.com for more information.

RARA RH25 (Inductive) Ordering Info

Below is the model number configuration for the RH series from RARA.
Ordering example: RH25C55KΩJ

Model Number (RHXX)


Filling Material (X)


Inductive / Non-Inductive (X)

(blank)         Inductive

Resistance Value (XXXXXX)

Resistance value expressed in ohms, for example 220.5Ω or 25KΩ.

Tolerance (X)


RH Downloads

Supporting Manufacturer Information