Split-Core Current Transformers (CTs) are designed for applications where it is difficult or uneconomical to open the primary conductor to install a solid-core-type current transformer. The split-core design uses M-6 silicon steel formed into a hexagonal or rectangular shape. This allows the core to be opened to the nominal window diameter. CTs may be installed over bushings or over cables and are held in place with cable ties.
The CT is encapsulated in a flexible vinyl plastic with 600 V class insulation. The secondary terminals and hardware are nickel-plated brass.
Volume pricing is available.
In-Service Installation—Use CTs for electrical load surveys, industrial energy management systems, submetering for department costing, and in conjunction with demand, kilowatt-hour, or power factor meters; current or watt transducers; or current-sensing relays. The split-core design eliminates the need to open the primary cable during installation over existing bushings or cable for a lower installation cost and time compared to closed-core designs. Install CTs when secondary load is present. Flexible encapsulation provides 600 V class insulation and ensures a long product life. Four window diameters are available: 3.5", 4.5", 6.0", and 8.0".
|Primary Current||600 to 3000 A|
|Secondary Current||5 A|
|Accuracy||±3% at rated burden|
|Metering Burden||B-0.2 (ANSI C57.13)|
|Nominal Window Diameters||3.5", 4.5", 6.0", and 8.0"|
|Core Design||Flexible Split Core|
|Core Material||Grain-Oriented Silicon Steel|
|Insulation Class||600 V (Can Be Used on Higher Voltage Circuits When Installed Over Insulated Conductors)|
|Secondary Winding Material||Copper|
|Electrical Terminals||Nickel-Plated Brass Threaded Posts|
|Markings||Hot Stamped for Polarity, Catalog Number, and Ratio|
|Operating Temperature||–40° to +85°C|
|Installation Temperature||–10° to +85°C|