CBT-94F Core Balanced Current Transformers(For use only with 373-ELR)

The CBT-94F is designed for ‘exclusive’ use with the 373-ELR earth leakage protection relay. This range offers various case widths and apertures with a measurement range of up to 10A and a maximum 720V rated system voltage

(Please note this series can ONLY be used together with the 373-ELR earth leakage protection relay -it cannot be used as a stand-alone current transformer.)

The extremely sensitive toroidal core and secondary winding are encapsulated by a self extinguishing case providing excellent mechanical strength, protection from damage and electrical insulation.


  • Leakage measurement range
  • 0-10 amps
  • 6 models available
  • Integral wire sealable terminal cover
  • Flame retardant high impact moulded case


  • Reduction of high currents for ease of metering
  • Wide operating temperature –10°C to +50°C
  • Steel mounting feet supplied
  • Long product life


  • Switchgear
  • Distribution systems
  • Generator sets
  • Control panels
  • Motor protection
  • Transformer protection
  • Overload protection


  • IEC 60044-1

Protector-373-ELR(SPECS CLICK)

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CBT-94F Core Balanced CT used with 373-ELR DSC_0267