easywire® RI-CT250-EW Series RJ45 Connector


Rayleigh Instruments

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  • Patented technology
  • Foot, busbar or DIN rail mounting
  • RJ45 connector output
  • Safe to leave transformer on load with output disconnected
  • Fits standard moulded circuit breaker frame sizes
  • From 800A to 1600A Primary current input available
  • 330mV output
  • Sealable RJ45 connection
  • 215mm width
  • 70mm bar centres
  • 50 x 54mm apertures
  • Accuracy Class 1


The RI-CT250-EW is part of the easywire® family of current transformers and is one of five frame sizes available.

The easywire® system has been designed to save up to 90% installation time compared to a standard current transformer to meter installation.

This three phase current transformer is suitable for monitoring current in industrial and commercial applications and is designed to connect to the easywire® series of metering products.

Built-in limiting circuitry ensures the secondary of the current transformer is always under load and clamped to a safe level. This means that the output connection may be safely disconnected while under load.

Improved design features of these easywire® current transformers include a robust ‘snap-on’ DIN rail fixing, captive busbar location screw fittings, insulated busbar location feet, sealable (anti-tamper) RJ45 connection sockets and moulded load direction indication arrows on the CT shoulders.

The RI-CT250-EW is available with a horizontal RJ45 socket (stock) or with a vertical RJ45 socket (to order).

The RI-CT250-EW is available in 6 models with Primary Current : 800A, 1000A,  1250A and 1600A.
(All models have easywire® (RJ45) 330mV Output).


RI-CT250-EW Data Sheet 01_18
easywire Brochure - Europe - 03_19 (24.5MB)

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