1s24-v01-0.pdf
The 1S24 relay detects the high-intensity light emitted at the onset of an electrical arcing event and forms the core of a comprehensive arc fault protection system. Optical 1S30 point sensors and 1S40 linear sensors provide wide detection coverage within metal-clad switchgear, cable compartments and busbars. The 1S24 interfaces these sensors to an IEC61850 station bus network, handles sensor supervision and allows direct tripping of circuit breakers for high-speed clearance of arcing faults. An optical or electrical Ethernet network connects the 1S24 relays to other IEDs, enabling complex arc flash protection schemes via programmable logic functions.
