50mm diameter aperture.
1/1000 ratio.
Surface mounting with 4 fixing slots.
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.

Aperture diameter: 50mm.
Rated system voltage: 720VAC.
Insulation level: 3kVAC.
Current ratio: 1/1000.

Rated operational current (I.e.): 85A (50mm2)
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:63 x H:98 x D:40 (inc. feet).
Weight: 88g.
Approvals: CE Compliant. Conforms to: IEC61869 parts 1 and 2.

50mm diameter aperture.
1/1000 ratio.
Surface mounting with 4 fixing slots.
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.

Aperture diameter: 50mm.
Rated system voltage: 720VAC.
Insulation level: 3kVAC.
Current ratio: 1/1000.

Rated operational current (I.e.): 85A (50mm2)
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:63 x H:98 x D:40 (inc. feet).
Weight: 88g.
Approvals: CE Compliant. Conforms to: IEC61869 parts 1 and 2.