model | AIJK1 | AIJK3 | AIJK6 |
Load characteristics | Single term, resistive and inductive | resistive | resistivity and inductive |
Wiring method | Single-item dedicated | Three-phase four-wire, two-phase and single-phase | Three-phase three-wire dedicated ( Semi-controlled and fully controlled circuits) |
Fault detection and alarm | Current open circuit alarm | Power supply phase loss, overcurrent, thyristor breakdown, and automatic load detection open circuit | Power supply phase loss and overcurrent |