CT-1 | CTA-1 | CTD-1 | CTD-2  Đại lý hãng Contrel tại Việt Nam, nhà phân phối hãng Contrel , thiết bị đo năng lượng hãng Contrel, thiết bị giám sát nhiệt độ hãng Contrel, giải pháp cho cơ sở y tế, màn hình cách ly hãng Contrel.

CATALOGUE

The earth 
leakage relays of the ELR series can be connected to the following toroidal current transformers: 
CTD-1/28 hole Ø 28mm 
CTD-2/29 hole Ø 29mm 
CT-1/22 hole Ø 22mm 
CT-1/35 hole Ø 35mm 
CT-1/60 hole Ø 60mm 
CT-1/80 hole Ø 80mm 
CT-1/110 hole Ø 110mm 
CT-1/160 hole Ø 160mm 
CT-1/210 hole Ø 210mm 
CT-1/300 hole Ø 300mm 
CT- 1 / 280R Ø hole 280mm 
CT-1 / 350R hole Ø 350mm 
CT-1 / 415R hole Ø 400mm 
CTA-1/110 hole Ø 110mm (openable) 
CTA-1/160 hole Ø 160mm (openable) 
CTA-1/210 Ø hole 210mm (can be opened) 
CTA-1/300 Ø hole 300mm (can be opened)
They must be crossed by the cables of the line to be controlled; insert the phases and the neutral if present. The earth cable must NOT cross the current transformer. 
NOTE: Twist the connection wires between the toroid and the relay, keep them away from the power cables, and in the presence of strong electromagnetic fields use a shielded conductor. Twist the pair of signal cables (terminals 1-2) separately from the control circuit pair (terminals 3-4) where present. Minimize the distance between the toroid and the relay.