BZCT035 Earth Leakage Toroid, 35mm Aperture

  • 35mm diameter aperture
  • 1/1000 ratio
  • Surface mounting with 4 fixing slots
  • DIN Rail Mounting Clip/Bracket accessory available (Part No. BZCT035/CP)

A Core Balance Current Transformer (CBCT)/Toroid designed for use in conjunction with all Broyce “Type A” Earth Leakage Relays that require an external sensing means.

An option to mount the BZCT035 toroid on to DIN rail is provided by using the BZCT035/CP Clip accessory which simply clips on to bottom of the toroid. The assembled toroid/accessory then clips on to the DIN rail.

  • Aperture diameter: 35mm (Order Code: 99-1901)
  • Rated system voltage: 720VAC
  • Min. ELR IΔn setting: 30mA
  • Dimensions(mm): W:64 x H:74 x D:40 (inc. feet)
  • Product standard(s): IEC 61869-1/-2
  • DIN Rail  Mounting Clip/Bracket BZCT035/CP (Order Code: 99-1950)
Distributors Stock Code Link
RS Components 3979117 Go to product
Farnell 4832645 Go to product

Typical applications include:

  • Compact control panels
  • DIN rail assemblies
  • OEM machinery
  • Building services distribution

Key benefits:

  • Enables residual-current sensing — The core balance transformer provides the sensing element for a compatible Broyce Type A earth leakage relay.
  • Fits the chosen conductor arrangement — The 35mm (Order Code: 99-1901) aperture accommodates a suitable group of circuit conductors, subject to physical fit and installation design.
  • Supports a defined relay setting — The documented minimum ELR IΔn setting of 30mA helps specify a suitable relay configuration.
  • Simplifies mechanical installation — Surface mount; optional DIN rail clip BZCT035/CP provides a documented fixing approach for the installation.