Our range of variable autotransformers (often referred to as variacs) are used for the variable control of voltages from 0V to 270V (single-phase) and 0V to 470V (three-phase). Variable autotransformers are frequently used in repair shops for testing appliances under differing voltages or to imitate irregular line voltages.
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Open-Type Variable Autotransformer for Panel Mounting 1ph (2~28A)from £35.00 Add to cartQuick View
Enclosed Variable Autotransformer for Bench Mounting 1ph (2~20A)from £50.80 Add to cartQuick View
Open-Type Variable Autotransformer for Floor Mounting 3ph (2~20A)from £119.00 Read moreQuick View
Enclosed Variable Autotransformer Free Standing 3ph (2~20A)from £156.00 Add to cartQuick View