XL-21(G)X type low voltage enclosed power panel, is suitable for operating in the system of AC 500V and below, 3-phase 3-wire, 3-phase 4-wire or 3-phase 5-wire in power generating plant or mineral enterprises, for lighting and distribution, with such features: various schemes, free combination, practical, new structure and etc.
Structural characteristics
■ Main electric performances comply with the standard of IEC60439-1: 1992 and GB7251 .1-1997
■ Auxiliary circuit can perform local, remote, and automatic control, and shift between these controlling modes, contactor can be controlled and protected by DC.
■ Main breaker of incoming line provide instantaneous trip and thermal magnetic trip as optional, in order to perform the selective protection with downstream breaker, this instantaneous trip is cancelled, which can prevent leapfrog tripping, able to be switched automatically, by hand, or auto-shift.
■ Main breaker of incoming line has the protection of instantaneous trip and thermal magnetic trip, leakage protection can be provided if user required.
■ The circuit for motor control has the protection of short circuit instantaneous trip, overloading trip, under-voltage release and phase failure.
■ Incoming circuit assembled with ammeter and voltmeter.
