... interlock,over voltage absorbtion, triphase imbalance;Real-time display triphase current, system voltage, operation status, loop on-line status,insulation ... optional;It can supply illumination power of 4KVA/127V(220V).Technical Data TypeQJZ-1800/3300-8.9.10.11. ... speed,double motor-double speed,mixed usageTotal working current(A)1600-1800Branch max current(A)450Working frequency(Hz)50Number of loops8.9 ...