QGLZ2- 160A~1600A Changeover load isolation switch 1 QGLZ-160A~1600A. The load isolation switch suitable for the changeover of the two sets of low voltage electric circuit or the changeover of 2sets of load devices o0f safety isolation. 2 Mode of operation: Direct operation: handle is installed on the right side of switch. Operation outside the board: handle is installed outside the door of distributing board. 3 Products with observation windows can be provided according to the demand to observe directly the on and off state of the contact. 4 The products have three pole, four pole ( three poles+on off neutral pole). 5 Extended shaft is used for the operation outside the board. 6 Two sets of auxiliary contacts can be assembled according to the demand. 7 A bridge can provided to connect the inlet or out let terminal of the switch.