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.
Rated system voltage: 720VAC.
Insulation level: 3kVAC.
Current ratio: 1/1000.
Rated operational current (I.e.):65A (25mm2).
Max. cross-section/phase cable size shown in brackets and assumes 3P + N copper cables.
Maximum permissible current: 1kA cont., 5kA for 1.5s, 100kA for 0.05s.
Minimum I∆n setting on Earth Leakage Relay foreach type of toroid: 0.03A.
Max. Distance: 50m (max.) Between toroid and ELR.
Ambient temperature: -20 to +60°C.
Relative humidity: +95%.
Housing: Grey ABS.
Mounting option: Surface mount only using fixing slots provided.
Terminal conductor size: ≤ 2.5mm2 solid / ≤ 1.5mm2 stranded.
General
Dimensions (mm): W:64 x H:74 x D:40 (inc. feet).
Weight: 77g.
Approvals
CE Compliant.
Conforms to: IEC61869 parts 1 and 2.
