Magnelab's SCT-0400 Series split-core current sensors "sense" AC current up to 75 Amps passing through the center conductor. Split-core transformers are ideal for installation on existing electrical wiring by ‘clipping’ around the conductor.
The SCT series have a self-locking mechanism guaranteed for 500 opening-closing cycles.
SCT-0400 models:
Magnelab Split-Core AC Current Sensor SCT-0400 (0.333V output)