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Volt Ratio Box

Volt Ratio Box

Product Code : JA-SI-8124

The Volt Ratio Box (SKU JA-SI-8124) extends the range of a Crompton potentiometer so that voltages well above the potentiometer range can be measured. Its tapping points divide the applied voltage in multiples of 1.5 V, giving ranges of 1.5, 15, 30, 150, 300 and 750 V. The total resistance is 37,500 ohms and the listed accuracy is +0.02%.

Specifications

The two models in the listing compare as follows:

ProductVolt Ratio Box
SKUJA-SI-8124
Ranges1.5, 15, 30, 150, 300, 750 V
Resistance37,500 ohms
Accuracy+0.02%
Tapping pointsMultiples of 1.5 V
Volt Ratio Box 11.5, 15, 30, 150, 300 V; 15,000 ohms; +0.02%

Scope of supply and ordering

Two models are listed, so say whether you need the 750 V box or Volt Ratio Box 1 (300 V); quantities and packing are confirmed on the quotation.

Frequently asked questions

What is the volt ratio box used for?
To extend the voltage range of a Crompton potentiometer through tapping points in multiples of 1.5 V.

What is the highest range?
750 V on this model; Volt Ratio Box 1 goes up to 300 V.

Related products

Potentiometer accessories are grouped in our scientific instrument range.

Request a quote

For the Volt Ratio Box, name the model and quantity on the contact page. For tender or project supply, see our tenders page.

Last updated: September 2026

   
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