Cropico RH9A

High resistance, high voltage decade resistance box with SP1 switch

  • Max Voltage 5kv
  • Accuracy ± 0.1%
  • Range 1kΩ to 1TΩ
Cropico RH9A

Cropico RH9A

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RH9A High Resistance / High Voltage Decade Boxes - Total Resistance 1 Terraohm -  Resolution 1 kilohm - Max Voltage 5000 Vdc.

Designed using the Cropico High Quality SP1 switch combined with specially selected resistors, this range of high ohm resistance decades is ideal for the calibration of insulation test sets with a voltage rating up to 5kV. Housed in a rugged plastic carrying case with up to 9 decades the RH series covers the range 1 kΩ to 1 TΩ and is equally at home in the laboratory, workshop or field application.

Cropico RH9A-5 decade resistance box

The RH9A-5 decade resistance box

Cropico RH9A
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Technical specification


RH9A-1 RH9A-2 RH9A-3 RH9A Decade Accuracy @ certified voltave 1kV max Max V/Step Power Rating Temp Coefficient
    10x1kΩ ±0.1% 30V 1 watt ±50ppm/°C
    10x10kΩ ±0.1% 100V 1 watt ±50ppm/°C
    10x100kΩ ±0.1% 300V 1 watt ±50ppm/°C
  10x1MΩ ±0.1% 350V 1 watt ±50ppm/°C
  10x10MΩ ±1% 3500V 1.5 watts ±100ppm/°C
  10x100MΩ ±1% 4000V 1.5 watts ±100ppm/°C
  10x1GΩ ±1% 4000V 3.5 watts ±100ppm/°C
  10x10GΩ ±1% 5000V 3.5 watts ±250ppm/°C
  10x100GΩ ±3% 5000V 1.3 watts ±2000ppm/°C

RH9A-5 High Voltage Resistance Decade Box with SP1 Switch Specifications

 Value  Accuracy @ Certified Voltage 1kV Max  Max V/Step   Power Rating  Temperature Coefficient
1kΩ  ±0.1% 30V  1W  ±50ppm/°C
10kΩ  ±0.1% 100V  1W  ±50ppm/°C
100kΩ  ±0.1%  300V  1W  ±50ppm/°C
1MΩ  ±0.1%  350V  1W  ±50ppm/°C
10MΩ  ±1%  3500V  1.5 watts  ±100ppm/°C
100MΩ  ±1%  4000V  1.5 watts  ±100ppm/°C
1GΩ  ±1%  5000V   3.5 watts  ±100ppm/°C
10GΩ  ±1%  5000V   3.5 watts  ±250ppm/°C
100GΩ  ±3%  5000V   1.3 watts   ±2000ppm/°C
1TΩ  ±3%  5000V   1.3 watts   ±2000ppm/°C