Installation And Wiring - CHINT NXZ Series User Instructions

4

Installation and Wiring

Installation method
Normal power bus
Normal power supply I
1 3 5 N
3Pole
4P product wiring diagram
Alternative power bus.
Load bus
alternative power supply II
1 3 5 N
Main
circuit
Figure 5 Installation method
NXZ Automatic Transfer Switch
During wiring, incorrect N-pole wiring may result in the
burn-out of the controller!
1 The phase sequence of normal and standby power supply must be
consistent. Phase N wiring cannot be wrongly connected. Normal
power supply has priority over standby power supply in terms of wiring
of power line end.
The front end of the normal and standby main circuit of the product
shall be equipped with SCPD (fuse) produced by the company
consistent with the identification on the product nameplate or SCPD
(fuse) with the same breaking capacity.
2 For the wiring of the load end of 3P product, the N pole is not
connected, and the wiring of its power line end is same as 4P product.
Normal power supply I
1 3 5 N
4Pole
04
Main circuit conductor
alternative power supply II
1 3 5 N