Current Transformers


The latest current transformers from Crompton Instruments and Smart Process & Controls make it possible to measure high current values and indicate these using instruments of a much lower rating. Owing to high costs in cable we recommend the use of a Current Transformer for the current measurement above 40A (unless otherwise specified). When choosing a current transformer it is important to not only check the dimensions are suitable but also to check the accuracy class and burden required. You will need to also consider the length of cable between the instrument and CT; size of the cable and the burden required which the instrument will consume. In retro-fit applications it is possible to use a Split Core Current Transformer as it is easier and faster to install. These also come in various sizes and current ratings. We have also developed the Three Phase Current Transformers with plug in connectors for fast installation. Our Single Phase Solid Core Current Transformers come in various different shapes and sizes to cater for most busbar or cable dimensions.


Product Compare (0)


Crompton Instruments - MA5Y Single Phase Current Transformer (5-40A)

Crompton Instruments - MA5Y Single Phase Current Transformer (5-40A)

Product Features:M8 Stud Primary Bar5-40A Primary CurrentAccuracy Class 1 or 3Busbar or DIN Rail MountedThe ...

£13.80

Crompton Instruments - M53J Single Phase Current Transformer (100-400A)

Crompton Instruments - M53J Single Phase Current Transformer (100-400A)

Product Features:25mm² Aperture30mm x 10mm Busbar Aperture25mm x 15mm Busbar Aperture20mm x 20mm Busbar Aperture100-400A ...

£8.30

Crompton Instruments - M53Q Single Phase Current Transformer (50-300A)

Crompton Instruments - M53Q Single Phase Current Transformer (50-300A)

Product Features:21mm² Aperture20mm x 6mm Busbar Aperture50-300A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 ...

£7.70

Crompton Instruments - M63N Single Phase Current Transformer (200-800A)

Crompton Instruments - M63N Single Phase Current Transformer (200-800A)

Product Features:32mm² Aperture40mm x 10mm Busbar Aperture200-800A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 ...

£11.60

Crompton Instruments - M93L Single Phase Current Transformer (400-1000A)

Crompton Instruments - M93L Single Phase Current Transformer (400-1000A)

Product Features:42mm² Aperture50mm x 10mm Busbar Aperture40mm x 30mm Busbar Aperture400-1000A Primary CurrentSecondary M4 Screw ...

£16.40

Crompton Instruments - M93R Single Phase Current Transformer (800-2000A)

Crompton Instruments - M93R Single Phase Current Transformer (800-2000A)

Product Features:64mm x 12.6mm Busbar Aperture60mm x 30mm Busbar Aperture800-2000A Primary CurrentSecondary M4 Screw TerminalsAccuracy ...

£20.40

Crompton Instruments - M93S Single Phase Current Transformer (800-1600A)

Crompton Instruments - M93S Single Phase Current Transformer (800-1600A)

Product Features:76.5mm x 19mm Busbar Aperture60mm x 30mm Busbar Aperture800-1600A Primary CurrentSecondary M4 Screw TerminalsAccuracy ...

£27.50

Crompton Instruments - MB5D Single Phase Current Transformer (800-1600A)

Crompton Instruments - MB5D Single Phase Current Transformer (800-1600A)

Product Features:63mm² Aperture80mm x 30mm Busbar Aperture60mm x 30mm Busbar Aperture50mm x 50mm Busbar Aperture800-1600A ...

£21.00

Crompton Instruments - MB5Z Single Phase Current Transformer (1600-3000A)

Crompton Instruments - MB5Z Single Phase Current Transformer (1600-3000A)

Product Features:35mm² Aperture104mm x 35mm Busbar Aperture1600-3000A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 ...

£25.60

Crompton Instruments - MC5T Single Phase Current Transformer (2500-6000A)

Crompton Instruments - MC5T Single Phase Current Transformer (2500-6000A)

Product Features:160mm x 50mm Busbar Aperture2500-6000A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 or ...

£50.00

Crompton Instruments - MD5T Single Phase Current Transformer (4000-6000A)

Crompton Instruments - MD5T Single Phase Current Transformer (4000-6000A)

Product Features:160mm x 50mm Busbar Aperture4000-6000A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 or ...

£50.00

Crompton Instruments - MSC2 Miniature Split Core Current Transformer (100-250A)

Crompton Instruments - MSC2 Miniature Split Core Current Transformer (100-250A)

Product Features: | Split Core | Safety Shorting Fuse | 18mm² Aperture | 100-250A Primary Current | 1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | DIN Rail ...

£26.80

Smart Process - SCTK35 Miniature Split Core Current Transformer (100-600A)

Smart Process - SCTK35 Miniature Split Core Current Transformer (100-600A)

Product Features: | Split Core | 35mm² Aperture | 100-600A Primary Current | 1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | The SCTK35 Range of ...

£31.00

Smart Process - T24 Miniature Split Core Current Transformer (100-300A)

Smart Process - T24 Miniature Split Core Current Transformer (100-300A)

Product Features: | Split Core | 24mm² Aperture | 100-300A Primary Current | 1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | The T24 Range of ...

£27.00

Smart Process - T36 Miniature Split Core Current Transformer (200-400A)

Smart Process - T36 Miniature Split Core Current Transformer (200-400A)

Product Features: | Split Core | 36mm² Aperture | 200-400A Primary Current | 1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | The T36 Range of ...

£31.00

Showing 1 to 15 of 28 (2 Pages)