Professional range of single phase encapsulated variable transformers. The transformers are not designed to provide mains isolation but do operate at mains voltage. All of the transformers are open style and must be fitted in an enclosure or within a protected environment.

A robust range of open style resin cast variable transformers for flash mounting within control panels, enclosures or process control equipment
Single or three phase versions available in a range of current ratings
Continuously variable AC output voltage with overvoltage tap
Heavy duty construction
High efficiency & excellent regulation
No wave form distortion
Silver plated commutator
Over-load capacity
Smooth linear output
Negligible maintenance
Trouble free long life

Variable Auto Transformers

Continuously variable alternating current (a.c.) output voltage
Rugged construction
Low operating torque
High efficiency/excellent regulation

Silver-plated commutator
Low magnetising current
No waveform distortion, smooth linear output & overload capacity
Screw terminals
Complete with knob and dial