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Current Transformers

Current transformers 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 CT 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 wll need to also consider the run of cable between the instrument and CT, size of the cable and the burden required which the instrument will consume. We have an extensive range and can accomadate most applications.

 

Model: CT105RJ12
Product Features:Three Phase CTMade in the UK3x 21 x 25mm Aperture100-250A Primary Current0.1A Secondary CurrentAccuracy Class 0.5,RJ12 ConnectionBusbar or DIN Rail MountedThe 3-in-1 current transformer range is for use with the Smart Process RJ12 meters which combines three traditional current tran..
£28.00
Model: CT140RJ12
Product Features:Three Phase CTMade in the UK3 x 31 x 31mm Aperture250A-630A Primary Current0.1A Secondary CurrentAccuracy Class 0.5,RJ12 ConnectionBusbar or DIN Rail MountedThe 3-in-1 current transformer range is for use with the Smart Process RJ12 meters which combines three traditional current tr..
£30.00
Model: CT75RJ12
Product Features:Three Phase CTMade in the UK3 x 30 x 15.5mm Aperture60-160A Primary Current0.1A Secondary CurrentAccuracy Class 0.5,RJ12 ConnectionBusbar or DIN Rail MountedThe 3-in-1 current transformer range is for use with the Smart Process RJ12 meters which combines three traditional current tr..
£27.00
Model: MA5Y
Product Features:M8 Stud Primary Bar5-40A Primary CurrentAccuracy Class 1 or 3Busbar or DIN Rail MountedThe MA5Y Range of Solid Core Current Transformers from Crompton Instruments work in conjunction with any 5A CT Operated Electricity Meters. You can use individual MA5Y CTs for Single Phase applica..
£14.90
Model: M53J
Product Features:25mm² Aperture30mm x 10mm Busbar Aperture25mm x 15mm Busbar Aperture20mm x 20mm Busbar Aperture100-400A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 or 3Busbar or DIN Rail MountedThe M53J Range of Solid Core Current Transformers from Crompton Instruments work in ..
£9.00
Model: M53Q
Product Features:21mm² Aperture20mm x 6mm Busbar Aperture50-300A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 or 3Busbar or DIN Rail MountedThe M53Q Range of Solid Core Current Transformers from Crompton Instruments work in conjunction with any 5A CT Operated Electricity Meters. ..
£8.30
Model: M63N
Product Features:32mm² Aperture40mm x 10mm Busbar Aperture200-800A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 or 3Busbar or DIN Rail MountedThe M63N Range of Solid Core Current Transformers from Crompton Instruments work in conjunction with any 5A CT Operated Electricity Meters..
£12.50
Model: M93L
Product Features:42mm² Aperture50mm x 10mm Busbar Aperture40mm x 30mm Busbar Aperture400-1000A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 or 3Busbar or DIN Rail MountedThe M93L Range of Solid Core Current Transformers from Crompton Instruments work in conjunction with any 5A CT..
£17.70
Model: M93R
Product Features:64mm x 12.6mm Busbar Aperture60mm x 30mm Busbar Aperture800-2000A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 or 3Busbar or DIN Rail MountedThe M93R Range of Solid Core Current Transformers from Crompton Instruments work in conjunction with any 5A CT Operated El..
£21.40
Model: M93S
Product Features:76.5mm x 19mm Busbar Aperture60mm x 30mm Busbar Aperture800-1600A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 or 3Busbar or DIN Rail MountedThe M93S Range of Solid Core Current Transformers from Crompton Instruments work in conjunction with any 5A CT Operated El..
£28.80
Model: MB5D
Product Features:63mm² Aperture80mm x 30mm Busbar Aperture60mm x 30mm Busbar Aperture50mm x 50mm Busbar Aperture800-1600A Primary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 or 3Busbar or DIN Rail MountedThe MB5D Range of Solid Core Current Transformers from Crompton Instruments work in..
£22.70
Model: CT325
The CT325 is a new design moulded case three phase current transformer.They offer easy installation and cost saving compared to single phase current transformers. They come complete with  hinged terminal covers and built in foot mounting bracket. 3 x apertures at 15.5 x 30mm Primar..
£28.60
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