Variable transformers or variacs, such as this three output model from RS PRO, are used to adjust the AC (alternating current) voltage for electronic devices and lamps. They can be used in a range of applications including power conversions and audio systems.

A silver-plated commutator provides the transformer with a smooth linear output free from waveform distortion. A commutator periodically reverses the current direction between the rotor and the external circuit. Overload protection is built into the device, and it has a low operating torque and low magnetising current for efficient operation.

This variable transformer is designed for either surface, floor or wall mounting. This is easy using the screw terminals provided. It's part of RS PRO's professional range of Varivolt transformers, which come in a variety of current settings and phase models. All of the transformers require earthing using the earth studs provided.

• Variac transformer
• Enclosed construction
• Surface mounting
• Wire termination
• Includes overload protection
• Clockwise knob rotation
• Three phases
• Three outputs
• Primary voltage rating of 415 V
• Secondary voltage rating of 0 - 415 V, 0 - 470 V
• Power rating of 1.628 kVA
• Primary current rating of 2 A
• Operating frequency range of 50 - 60 Hz
• Weight of 12.9 kg
• Measures 150 mm (L) x 200 mm (W) x 330 mm (D)
• RoHS compliant on the restricted use of hazardous substances

RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards