HomeEnvironmentalPower Analysers › Cropico RBC Decade Resistance Box

Cropico RBC Decade Resistance Box

The RBC Series is a robust range of high dissipation resistance decades available in 5 or 6 decade versions and suitable for applications where reasonably precise and stable adjustable loads are required.

Constructed using the same high quality components as our other resistance decades and housed in a light alloy ventilated case, the RBC Series will withstand the most arduous use and give many years service.

All parts are fully serviceable and can be repaired in our workshop should the more enthusiastic user damage the units with high overloads.

Key Features

  5 and 6 Decades available
  High dissipation
  5 Watts per coil
  Accuracy 5%
  0.1 ohm to 111,111 ohm
  Fully serviceable
  Special model for insulation simulation

Data Sheet



Calibration certificates including UKAS traceable are available on request


Contact material gold plated brass
Contact resistance = 5 milli ohm
Insulation Resistance (all paths = 10 giga ohm)
Proof voltage 1kV


Temperature Co-efficient: +/-3ppm / +20degC to +85degC +/-5ppm maximum over -55degC to + 125degC 0.1, 0.01, and 0.001 dials 10ppm/degC

Full Load Stability: +/-35ppm/10,000 hours/+/-50ppm/26,000 hours

No Load Stability: +/-25ppm/10,000 hours/+/-35ppm/26,000 hours

Over full temperature range: -50degC to +125degC

Power Rating: 0.33 watt (+85degC) 0.25 watt (+110degC)

Maximum Continuous Working Voltage: Up to 250V dc

Noise: Essentially non-measurable <1.5 mV/degC

Thermal E.M.F: <0.4mV/degC typical

Encapsulation: Moulded epoxy

Windings: Exclusive 'air cushioned' technique provides virtually stressless elements for improved performance. Non inductively wound.
Direction of winding reversed at half turns point


5 Dial Box - 3.0kg
6 Dial Box - 3.5kg


5 Dial Box - 390mm x 105mm x 130mm (W H D) approx
6 Dial Box - 450mm x 105mm x 130mm (W H D) approx

Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

Back To Last Page


Digital Ohmmeters

DO4A Portable Ohmmeter
DO6 Digital Ohmmeter
DO5000 Series Ohmmeters

Handheld Micro Ohmmeters

DO4000 & DO4001 Micro Ohmmeters
DO4002 Micro Ohmmeter

Portable Micro Ohmmeters

DO7 Micro Ohmmeter
DO7e Micro Ohmmeter
DO7 Plus Micro Ohmmeter
DO7010 Digital Microhmmeter

Resistance Standards & Decades

00Series Decade Boxes
CM5-N Capacitance Compensation Box
CR Calibrator Resistor
MTS Milliohmmeter
RBB Decade Resistance Box
RBC Decade Resistance Box
RH9A Decade Resistance Box
RM6 Decade Resistance Box
RM6N Decade Resistance Box
RM8 Decade Resistance Box
RS3 Resistance Standard

Temperature Measurement

Series 3000 Digital Thermometer

Want A Quotation?

Please fill out the following fields and we will e-mail you a quotation shortly.