Measuring Instruments Current Transformer B Series

Current Transformer B Series

MPEX provides a comprehensive standard range of Low-Voltage Current Transformer up to
2500/5 for both measuring and protective applications. Its performance is designed to
meet the highest standards in accordance to BS 7626/93 and IEC 185/87 (mod.)
Customised designs up to 6000/5 range are also available upon request by customer.


The core is made of high-grade silicon steel, annealled to
enhance its operating characteristics. It is insulated with
elephantite insulation paper and PVC/Polyethylene caps.
The secondary winding is made of PEW enamel-coated
material and toroidally wound using high-precision machinery.
The entire core is then covered by another layer of elephantite
paper and double-lapped with non-adhesive PVC tape.
Supporting bracket/stand can also be added upon request.

Technical Specifications

as BS 7626/93 and IEC 185/87 (mod.)
Secondary current: standard 5 Amps
Dielectric range: 2,500 Vr.m.s for 1 minute
Voltage: Primary rated 660V AC
Rated short-time current: 20,000 Amps for 1 second
Rated thermal current as % of primary: 120%
Frequency: 50/60Hz
Temperature: -20?C to 70?C
Insulation: Class B
Safety Factor: