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