CTSB Series of Split-Core Current Transformers

Split-core current transformer

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.


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 InstallationInstallation instructions (664kb)

CTSB BrochureDownload (pdf 616kb)


Many of our products can be designed and manufactured to meet the specific application requirements. For a no obligation technical evaluation, please provide the specific performance requirements to engineering@tichenassociates.com.