Two groups of three-phase current, zero sequence current and zero sequence voltage detection.

PC modular structure for easy expansion and maintenance.            

LCD large screen man-machine interface, system single line diagram display, support Chinese menu.            

Five large capacity high-speed tripping contacts.            

Two Road arc input.     

A keeping open and normally closed alarm contact.            

Incident recording, disturbance recording and fault wave capturing are integrated into the arc light protection system to improve the analysis ability of arc light phenomena and before, during and after faults.            

An optional tripping mode: arc or arc plus current trip mode.            

Quick and adjustable current value setting.           

Two port RJ45 for connecting extension units.            

RS485 communication port, Ethernet port and front panel USB port, support Modbus RTU/TCP, IEC-103 and other protocols.

The continuous self checking of all units.

Time proofreading