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Ammeter-Voltmeter Switches

Panel metering switches fall generally into two groups - Ammeter and Voltmeter switches. Ammeter switches can be directly connected, but more generally are fed from current transformers (C/T's). When C/T fed, the switch must have make-before-break contacts when switching between phases, as an open circuit could generate dangerously high voltages.
We show a few standard sequences in this section, however if you need a special arrangement, please contact our sales team for assistance or return the switch design template below.

Bespoke Switch Design Template

 

The following individual switches include a switch diagram which shows a lot of useful information for the end user. If you're not familiar with this style of diagram please click the following link for a interpretation guide.

Selector Switch Diagram Guide

 

    

          

 

Diagram in Ctalogue Number  e.g.  20F2603


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20N2703 Selector switch, 'N' range, 20A, triple pole 'O/L1/L2/L3', 90 deg Made to Order
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25N2703 Selector switch, 'N' range, 25A, triple pole 'O/L1/L2/L3', 90 deg Made to Order
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32N2703 Selector switch, 'N' range, 32A, triple pole 'O/L1/L2/L3', 90 deg Made to Order
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40N2703 Selector switch, 'N' range, 40A, triple pole 'O/L1/L2/L3', 90 deg Made to Order
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63N2703 Selector switch, 'N' range, 63A, triple pole 'O/L1/L2/L3', 90 deg Made to Order
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20C2803 Selector switch, 'C' range, 20A, triple pole 'O/L1/L2/L3', 90 deg Made to Order
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10F2803 Selector switch, 'F' range, 10A, triple pole 'O/L1/L2/L3', 90 deg Made to Order
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