CHINT NXZ-125 - User Manual

NO:2021.04
Standard: IEC/EN 60947-6-1
User Instructions
NXZ Series
Automatic Transfer Switch

CHINT NXZ-125 Specifications

General

Protection Class	IP20
Mounting Type	DIN Rail
Operating Temperature	-5°C to +40°C
Rated Current	125A
Rated Voltage	400V AC
Number of Poles	3P, 4P
Mechanical Life	20000 cycles
Electrical Life	10000 cycles
Storage Temperature	+70°C

Summary

Safety Warnings

Manual Debugging

Debugging Steps and Positions

Illustrates four manual debugging positions: double switch off, normal switch on, standby switch on.

Power-on Test

Operating Modes and Generator Start-up

Shows displays for automatic mode, setting state, and generator start-up.

Installation and Wiring

Installation Method and Diagrams

Wire Connection Details

Cable Specifications and Torque

Signal and Control Terminal Wiring

Type A Controller Terminal Layout

Illustrates signal and control terminal wiring for Type A controller.

Type B Controller and Applications

Type B Controller Terminal Layout

Typical Application Wiring

Display and Operation Interface

Interface Elements and Functions

Explains the meaning of indicators and buttons on the controller display.

Parameter Setting of Controller

Setting Controller Parameters

Guides on adjusting voltage, delay, and mode parameters via the controller.

Communication Function Settings

Setting Communication Parameters

Button Operation and Default Settings

Common Faults and Solutions

Fault Diagnosis and Resolution

Lists common faults, their causes, and solutions for wiring and operational issues.

Troubleshooting Indicator and Voltage Issues