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Rayleigh Instruments

Current Transformers

Three Phase Moulded Case

RI-CT248 Series

Rayleigh Instruments - CT248 - Easywire current transfomer


  • From 250A to 630A Primary currents
  • 5A Secondary output
  • Sealable terminal cover
  • Supplied with DIN Rail mounting clip and mounting feet
  • Compact design
  • Indication of primary current flow (arrows on case body)
  • 31 x 31mm busbar/cable apertures
  • 45mm bar centres
  • 140mm width
Rayleigh Instruments - CT248 - Easywire current transformer - aperature

Product Description

The RI-CT248 Series forms part of a family of solid core three phase moulded case current transformers from Rayleigh Instruments.

These transformers are suitable for monitoring current flow in commercial, industrial or utility applications. They are designed to connect any standard metering or relay product requiring a 5A output and are available with Primary current input ranges from 250A to 630A.

The RI-CT248 Series have been designed to fit a standard moulded case breaker size and are supplied with DIN rail clip, busbar mounting clamp and fixing feet. They also have clear markings moulded into the case to indicate the correct direction of primary current flow to minimise installation errors.


Primary Current Class 0.5 VA Class 1 VA Class 3 VA Order Code


Rayleigh Instruments - CT248 - Dimensions