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Three Phase CTs

We stock a range of solid core three phase moulded case current transformers to fit standard circuit breaker frame sizes.

These three phase transformers are suitable for monitoring current flow in commercial and industrial applications. They are designed to connect any standard metering or relay product requiring a 5A or 1A output and are available with comprehensive Primary current input ranges.

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  1. Rayleigh Instruments RI-CT250 Three Phase CT

    Rayleigh Instruments RI-CT250 Three Phase Current Transformer

    • Ranges: 630A to 1600A
    • 5A Secondary output
    • Cable/Busbar aperture: 3 @ 54 x 50mm
    • 70mm hole centres
    • Primary flow arrows on case
    • Sealable terminal cover
    • Supplied with DIN-Rail mounting clip, Busbar fixings and mounting feet
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  2. RI-CT250-EW easywire three phase current transformer

    easywire Three Phase Current Transformer - RI-CT250-EW

    • Ranges: 630 to 1600A (330mV Secondary)
    • Cable/Busbar aperture : 3 @ 50 x 54mm
    • 70mm hole centres
    • Accuracy Class 1
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  3. RI-CT249-EW easywire three phase current transformer

    easywire Three Phase Current Transformer - RI-CT249-EW

    • Ranges: 60 to 160A (330mV Secondary)
    • Cable/Busbar aperture : 3 @ 20 x 16mm
    • 29mm hole centres
    • Accuracy Class 1
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  4. Rayleigh Instruments RI-CT248 Three Phase CT

    Rayleigh Instruments RI-CT248 Three Phase Current Transformer

    • Ranges: 250A to 630A
    • 5A Secondary output
    • Cable/Busbar aperture: 3 @ 31 x 31mm
    • 45mm hole centres
    • Primary flow arrows on case
    • Sealable terminal cover
    • Supplied with DIN-Rail mounting clip, Busbar fixings and mounting feet
    ...
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  5. RI-CT248-EW easywire three phase current transformer

    easywire Three Phase Current Transformer - RI-CT248-EW

    • Ranges: 250 to 630A (330mV Secondary)
    • Cable/Busbar aperture : 3 @ 31 x 31mm
    • 45mm hole centres
    • Accuracy Class 1
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  6. Rayleigh Instruments RI-CT242 Three Phase CT

    Rayleigh Instruments RI-CT242 Three Phase Current Transformer

    • Ranges 60A to 250A
    • 5A Secondary output
    • Cable/Busbar aperture: 3 @ 21 x 25mm
    • 35mm hole centres
    • Primary flow arrows on case
    • Sealable terminal cover
    • Supplied with DIN-Rail mounting clip, Busbar fixings and mounting feet
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  7. RI-CT242-EW easywire three phase current transformer

    easywire Three Phase Current Transformer - RI-CT242-EW

    • Ranges: 60 to 250A (330mV Secondary)
    • Cable/Busbar aperture : 3 @ 25 x 21mm
    • 35mm hole centres
    • Accuracy Class 1
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  8. Rayleigh Instruments RI-CT240 Three Phase CT

    Rayleigh Instruments RI-CT240 Three Phase Current Transformer

    • Ranges: 60A to 200A
    • 5A Secondary output
    • Cable/Busbar aperture: 3 @ 30 x 15.5mm
    • 25mm hole centres
    • Primary flow arrows on case
    • Sealable terminal cover
    • Supplied with DIN-Rail mounting clip, Busbar fixings and mounting feet
    • Read More »
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  9. RI-CT240-EW easywire three phase current transformer

    easywire Three Phase Current Transformer - RI-CT240-EW

    • Ranges: 60 to 200A (330mV Secondary)
    • Cable/Busbar aperture : 3 @ 15 x 30mm
    • 25mm hole centres
    • Accuracy Class 1
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  10. easywire three-phase current transformer RI-CT230-EW

    easywire Three Phase Current Transformer - RI-CT230-EW

    • 32A or 63A Primary inputs
    • Sealable RJ45 connection
    • Fits standard circuit breaker frames
    • 330mV output
    • Foot or DIN rail mounting
    • 61mm width (17.5mm bar centres)
    • Ø 8mm apertures
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10 Item(s)

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