The C-mac current transformers series CS and SC are used to monitor high AC currents (up to 200 A).
The transformers, which are supplied with built-in electronics, are divided in 2 groups:

1. Current switches.
These units are used to give a signal, if the AC current exceeds a preselected setpoint.
The setpoint is adjusted on a potentiometer on the transformer.
2. Current converters.
These units converts the primary AC current to a standard 4-20 mA DC output current.

Series CS: Solid core, primary hole = Ø19 mm
Series SC: Split core, primary hole = 19 x 24 mm

Current switches, output variants:
   DC switch: max load 30 VDC - 150 mA
   AC/DC switch: max load 30 VAC/40 VDC - 500 mA
   AC switch: max load 250 VAC - 1 A

Current converters, electrical data:
   Output signal: 4-20 mA, loop powered
   External supply: 10-42 VDC

datasheet (PDF-format)