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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.

Model: ESCT-RJ325
Product Features:Class 0.5 accuracy60-200A Primary Current0.1A Secondary Current (EasyClick)RJ12 connector output25mm centresThe 3-in-1 current transformer range is for use with the Eastron RJ12 meters which combines three traditional current transformers in one moulding case with a RJ12 connection ..
£27.00
Model: ESCT-RJ335
Product Features:Class 0.5 accuracy60-250A primary current options0.1A Secondary Current (EasyClick)RJ12 connector output35mm centresThe 3-in-1 current transformer range is for use with the Eastron RJ12 meters which combines three traditional current transformers in one moulding case with a RJ12 con..
£28.00
Model: ESCT-RJ345
Product Features:Class 0.5 accuracy250-630A primary current options0.1A Secondary Current (EasyClick)RJ12 connector output45mm centresThe 3-in-1 current transformer range is for use with the Eastron RJ12 meters which combines three traditional current transformers in one moulding case with a RJ12 co..
£30.00
Model: M53Q
Product Features:21mm² Aperture20mm x 6mm Busbar Aperture50-300A Primary Current5A Secondary 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 ..
£8.30
Model: T24-200/0.333mV
Product Features: | Split Core | 24mm² Aperture | 200A Primary Current | 0.333mV Secondary Current1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | This particular T24 Split Core Current Transformer works in conjunction with any 0.333mV CT Oper..
£28.00
Model: T36-400A/0.333mV
Product Features: | Split Core | 36mm² Aperture | 400A Primary Current0.333mV Secondary Current | 1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | This particular T36 Split Core Current Transformer works in conjunction with any 0.333mV CT Oper..
£32.00
Model: TU16-120A/0.333mV
Product Features:120A Primary Current0.333mV Secondary CurrentSplit Core CT16mm ApertureThe TU16 Range of Split Core Current Transformers work in conjunction with any 333mV CT Operated Electricity Meters. Due to the style of these Split Core Current transformers, you can easily install them without ..
£28.00
Model: M53J
Product Features:25mm² Aperture30mm x 10mm Busbar Aperture25mm x 15mm Busbar Aperture20mm x 20mm Busbar Aperture100-400A Primary Current5A Secondary CurrentSecondary M4 Screw TerminalsAccuracy Class 0.5, 1 or 3Busbar or DIN Rail MountedThe M53J Range of Solid Core Current Transformers from Crompton ..
£9.00
Model: T24
Product Features: | Split Core | 24mm² Aperture | 100-300A Primary Current5A Secondary Current1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | The T24 Range of Split Core Current Transformers work in conjunction with any 5A CT Operated Electricity Meter..
£28.00
Model: M63N
Product Features:32mm² Aperture40mm x 10mm Busbar Aperture200-800A Primary Current5A Secondary 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 Operate..
£12.50
Model: MA5Y
Product Features:M8 Stud Primary Bar5-40A Primary Current5A Secondary 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 ..
£14.90
Model: M93L
Product Features:42mm² Aperture50mm x 10mm Busbar Aperture40mm x 30mm Busbar Aperture400-1000A Primary Current5A Secondary 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 conjun..
£17.70
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