Series 20 Current Transformers

20 series moulded case current transformer


A range of compact low cost moulded case current transformers suitable for primary currents from 400A to 2000A with built in sealable terminal covers.



For transforming various primary currents into 5A or 1A standard secondary using 60x30mm or 80x10mm busbars or cables up to 60mm diameter


  • Built in sealable terminal covers
  • Mounting feet supplied
  • Narrow width - 100mm
  • Wide range of primary current
Technical Specification
  • Conforms to IEC185, BS 7626, BSEN 60044-1, IEC 60044-1 and IEC 61869-2.
  • Rated system voltage 0.72 / 3kV
  • Continuous Current 1.2 x rated current
  • Ambient temperature range -5°C to +50°C.
20series table

1A Secondary available by request.
Order example: A moulded case current transformer type 20, with 5A secondary and 2000A primary 5VA class 1 is part number 20-5-K6


dimensions diagram


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