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 - 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

Crompton Instruments - MSC3 Miniature Split Core Current Transformer (250-500A)

Crompton Instruments - MSC3 Miniature Split Core Current Transformer (250-500A)

Product Features: | Split Core | Safety Shorting Fuse | 28mm² Aperture | 300-500A Primary Current | 1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | DIN Rail ...

£27.80

Smart Process - SCT19 0.33VAC Miniature Split Core Current Transformer (5-150A)

Smart Process - SCT19 0.33VAC Miniature Split Core Current Transformer (5-150A)

Product Features: | Split Core | 19mm x 19mm Aperture | 100-200A Primary Current | 1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | The SCT19 ...

£21.00 £35.00

Smart Process - SCT32 0.33VAC Miniature Split Core Current Transformer (400-600A)

Smart Process - SCT32 0.33VAC Miniature Split Core Current Transformer (400-600A)

Product Features: | Split Core | 32mm x 32mm Aperture | 400-600A Primary Current | 1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | The SCT32 ...

£27.00 £42.00

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