CTSB Split-Core Current Transformers – Designed for fast and easy installation on large primary conductors/ substation BUS bars. The split-core design permits non-contact AC current measurements without requiring that the primary conductor be taken offline and disconnected for CT installation.

The CTSB series of split-core current transformers feature a high performance magnetic core for highly accurate AC current measurement. The robust packaging features;

• Tight fitting mating magnetic core halves,
• Hardware to secure closure of the current transformer after installation, and
• Hardware to secure the position of the primary conductor within the current transformer opening window.

These features insures consistent and highly accurate AC current measurement performance over the life of the current transformer installation.
The robust CTSB split-core current transformer design, manufactured in an ISO9001 certified manufacturing facility, insures many years of defect free operation backed by a strong product warranty of 36 months.

CTSB Models	Rating	Opening Size
CTSB0203	100A to 500A	20mm (.79in) x 30mm (1.18″)
CTSB0508	200A to 1,000A	50mm (1.97in) x 80mm (3.15″)
CTSB0812	300A to 2,500A	80mm (3.15″) x 120mm (4.72″)
CTSB0816	500A to 6,000A	80mm (3.15″) x 160mm (6.30″)

CTSB Installation – Installation instructions (664kb)

CTSB Brochure – Download (pdf 349kb)