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Rayleigh Instruments TAS249-EW easywire "Plug and Play" Three Phase Measuring Current Transformer - Patented Technology


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  • Ranges: 60 to 160A (330mV Secondary)
  • Cable aperture : 3 @ 16 x 20mm
  • Primary current : 160A
  • 29mm hole centres
  • Accuracy Class 1
  • Housing Material Self extinguishing Nylon IEC185 classification VO according to UL-94
  • Weight : 500g


This system is safer than using traditional current transformers because Easywire transformers incorporate the resistive shunts usually located within the power meter. This means that the secondaries are always loaded, therefore eliminating the possibility of dangerously high voltages developing during open circuit conditions.

The TAS249-EW is a 90mm wide three phase measuring current transformer designed for use with the Easywire multifunction power meters. This current transformer has three 16 x 20mm holes and is available with primary current 160A.

Internal safety circuitry is provided which automatically limits the output voltage to a safe level, allowing the transformer secondary to be left open circuit under load.

DIN rail mounting clip, Busbar mounting and fixing feet included.

The TAS249-EW uses the Easywire technology allowing much faster installation saving you time and money. Additionally, all our three phase phase current transformers have been designed with hole centres and apertures to fit most standard industrial circuit breakers.

Additional Information

Manufacturer Rayleigh Instruments


Product Name / Options Price (ex VAT)
TAS249-EW - easywire Three Phase Measuring CT - 160A/330MV Call for Prices

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