AVR 5KW Automatic voltage regulator 5KVA Petrol Generator AVR Special Price BOLT CENTER: 140mm Output current (connected to carbon brush): DC3.5A [blue(positive)/yellow(negtive wire)] Excitation voltage: AC 90v ~ 120v [in white plug:blue/blue] Sampling voltage: 18v [in white plug:yellow/yellow] 6 wires = 1 white plug(4wires) + 1blue + 1yellow