CHINT NXZM Changeover Switch CHINT NXZM Changeover Switch
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CHINT NXZM Changeover Switch
CHINT NXZM Changeover Switch
CHINT NXZM Changeover Switch
CHINT NXZM Changeover Switch
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CHINT NXZM Changeover Switch
CHINT NXZM Changeover Switch
CHINT NXZM Changeover Switch
CHINT NXZM Changeover Switch
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Chint NCK5 Definite Purpose Contactor
Chint NCK5 Definite Purpose Contactor

CHINT NXZM Changeover Switch

Original CHINT NXZM changeover switch for automatic power transfer applications.

Poles
Rated Current
Switching Type
Category: Chint Changeover Switches Tags: CHINT, NXZM
  • Description
  • Additional information
  • Technical Datasheet & Downloads
  • Technical FAQ & Selection Guide
Description

CHINT NXZM is an original CHINT automatic transfer switching equipment designed for reliable power source transition. It ensures the continuity and safety of the power supply in low-voltage distribution systems.

1. Product Overview

The NXZM series (CB Class) ATSE is suitable for AC 50Hz, rated voltage 400V and below. It provides automatic transfer between normal and standby power sources, integrated with short-circuit and overload protection. It is ideal for residential, commercial and industrial applications where reliable power is critical.

2. Main Features

  • Original CHINT NXZM series ATSE
  • Automatic and manual transfer modes
  • Integrated circuit breaker protection
  • High performance and compact design
  • Easy installation on DIN rail
  • Reliable mechanical and electrical interlocking

3. Technical and Application Notes

Please refer to the technical manual for correct wiring and installation. The phase sequence of the power sources must be correct. Selection should be based on the required frame current and breaking capacity of the system.

4. Typical Applications

  • Hospitals and healthcare facilities
  • Data centers and communication hubs
  • Emergency power supply systems
  • Industrial production lines
  • Commercial buildings

5. Ordering Support

Please specify the frame size, rated current and number of poles when ordering. We provide technical assistance for model selection based on your project requirements.

6. Product Catalog

NXZM Catalog

NXZM Catalog

Additional information
Poles

3P, 4P

Rated Current

63A, 80A, 100A, 125A, 160A, 200A, 250A, 315A, 400A, 500A, 630A, 800A

Switching Type

Automatic (ATS)

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for CHINT NXZM Changeover Switch.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

Voltage & Load Sizing

How to verify rated operational voltage, frequency, and load duty cycle?

A

Verify that the nominal line voltage (AC 230V single-phase or 400V/415V/690V three-phase at 50/60Hz, or DC voltage ratings) falls within the continuous maximum operating limits of the device. Check duty cycle ratings (continuous vs intermittent duty) to ensure thermal stability under full load.

Protection & Environment

What ingress protection (IP Rating) and environmental enclosures are recommended?

A

For clean indoor electrical rooms, standard IP20 modular DIN-rail housings are recommended. For outdoor, industrial washdown, or dusty environments, mount components inside weatherproof enclosures rated IP65/IP66 with UV-resistant polycarbonate or powder-coated steel enclosures equipped with compression cable glands.

Selectivity & Grading

How to ensure upstream and downstream coordination in power distribution boards?

A

Ensure proper discrimination by grading current thresholds and tripping time delays: upstream devices should have higher current ratings and intentional short-time delays (Class S), allowing downstream branch MCBs to clear localized faults without blacking out the entire facility.

Installation & Mounting

What mounting rails, busbars, and spatial clearances are required?

A

Components mount on standard symmetrical 35mm DIN rail (EN 60715 / TH35-7.5) or backplate screw fixings. Maintain recommended top/bottom ventilation gaps (typically 30–50mm) to ensure unrestricted air convection, and use standard pin/fork comb busbars to minimize contact resistance and wiring errors.

Conductor & Torque Sizing

What conductor sizes and terminal tightening torques should be applied?

A

Select copper or aluminum conductor cross-sections complying with IEC 60364-5-52 current-carrying capacity tables based on continuous load. Always use a calibrated torque screwdriver or torque wrench to tighten terminal screws to the manufacturer-specified torque to prevent hot-spot degradation and loose connections.

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