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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: 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: SCTK35
Product Features: | Split Core | 35mm² Aperture | 100-600A Primary Current5A Secondary Current 1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | The SCTK35 Range of Split Core Current Transformers work in conjunction with any 5A CT Operated Electric..
£28.00
Model: QC3N1-35
Product Features:21mm x 25mm Aperture100-250A Primary Current5A Secondary CurrentQuick2Connect Plug In TerminalsAccuracy Class 0.5, 1 or 3Busbar or DIN Rail MountedThe QC3N1 Range of 3-in-1 Current Transformers from Crompton Instruments combine three traditional Current Transformers into one moulded..
£22.00
Model: SCT19
Product Features: | Split Core | 19mm x 19mm Aperture | 100-150A Primary Current0.333mV Secondary Current1m Fly Lead (2.5mm Wire) | Accuracy Class 1 | The SCT19 Range of Split Core Current Transformers work in conjunction with any 333mV CT Operated E..
£35.00
Model: CT335-SC
Product Features:3 x apertures at 21x25mm Primary current 60 -250A5A Secondary Current Secondary Terminal pluggable connector 35mm Hole Centres Class 0.5 Housing Material Self Extinguishing NylonThe CT3355-SC is a new design moulded case three phase CT with built in plugable connector..
£22.00
Model: CT345-SC
Product Features: 3 x apertures at 31x31mm 250-630A Primary current 5A Secondary Current Secondary Terminal pluggable connector 45mm Hole Centres Class 0.5 Built in DIN rail adaptor and Foot mounting feet Housing Material Self Extinguishing NylonThe CT345-SC is a new design mo..
£38.00
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