T: 0161 989 5636

My title

Three Phase Voltage Optimisation

The CPN Cudis Three Phase Voltage Optimisation range constitutes 4 different versions – 100A, 200A, 300A & 400A versions.

Features & Benefits

  • Easy & quick to install.
  • There are no moving parts – so no maintenance is necessary.
  • Three optimised settings: -6, -8 & -10.
  • IP Rating: IP2XC.
  • Complies with the Low Voltage Directive 2006/95/EC, BSEN 61439-1:2009 and BSEN 61439-2:2009.


  • Efficiency > 99.5%
  • Primary Voltage: 243V (Max 253V over voltage)
  • Secondary Voltage: 220V
  • Humidity: Up to 90%
  • Insulation Class: F
  • Voltage Withstand (1 minute): 1500V
  • Insulation Resistance at 500V DC: > 1000MΩ
  • Ambient Temperature Range: -100ºC to +400ºC

Why do we need to optimise supplies?

Because supplied grid voltages are higher than the appliances optimal voltage requirement.

This results in:-

  • The operating life of appliances being reduced dramatically.
  • An increase in the power they consume.
  • Electrical bills and carbon footprint being unnecessarily raised.

Who should optimise their supply voltages?

The straight forward approach to this is anyone with a voltage that persists at 234V or higher which accounts for about 90% of homes in the UK. An electrician can check this for you or you can buy a simple plug in logger for less than £20.

What savings can be expected?

A reduction in demand, typically between 6-14% of billing – Voltage Optimisation does not itself save kWh – It creates a condition for savings to be achieved.

Showing all 4 results