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Current Transformers

ABB CURRENT TRANSFORMER CT3/250

Product Code: CT3/250

Solid-core current transformer with current ratio 250/5 and accuarcy class 0.5 at 6VA. Test voltage 3kV at 50Hz/1min and insulation class E (120 °C). Equipped with a sealable terminals cover for secondary terminals. Housing material: self-extinguishing thermoplastic resin V0. Dimensions of CT3 type are 80Hx70Wx105Dmm with bar through opening 30x10mm. Can be adapted to all common mounting systems: primary cable, primary busbar, DIN rail and wall-mounting.

Technical Specifications

Brand ABB
Apparent Power Output (VA) 50
Cable Use Cable, Horizontal and Vertical bars
CT Ratio 250/5
Current Limit Function Full Scale 5
Net Weight (kg) 0.266
Pulse Output Rate 78
Rated Primary Current - I?? (A) 250
Rated Secondary Current - I?? (A) 1
Accuracy ±0.5%
Busbar Cross Section (mm²) 30 X 10
Cable Cross Section (mm²) 21
Degree of Protection IP30
Dimensions (mm) 70 X 80 x 105
Mounting Type Through Primary
Operational Temperature Range (°C) -5 to +50
Power Loss (W) 6
Rated Frequency (Hz) 50 / 60

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