Chint LW32 Changeover Switch

Name: Chint LW32 Changeover Switch
Brand: CHINT
SKU: 1769746475924856832

Whether the smart:NO
Brand Name:Chint
Place of Origin:China
Max. Current:10A, 20A, 25A, 32A, 63A
Model Number:LW32
Max. Voltage:380VAC, 220VDC
Brand:Chint
Certification:CCC, CE

Poles

Rated Current

Switching Type

Description

Chint original LW32 LW32-20 LW32-20/YH3/3 LW32-20/D202/2 LW32-10/3 LW32-25/3 LW32-32 LW32-63 CHNT Universal Changeover Switch

General:

Universal change-over switch of LW32 series is mainly applicable to circuit with alternating current of 50Hz~60Hz, rated operational voltage not more than 380V and DC voltage not more than 220V for remote control or transformation of power distribution equipment, it can also used as change-over switch of various electrical measuring meter and servo moto. Standard: GB 14048.5 IEC 60947-5-1.

Technical Parameters
Rated operating voltage: AC380V, DC220V
Rated operating current: AC-15:380V, 2.6A; DC-13:220V,0.27A
Conventional heating current: 20A
Rated insulation voltage: 550V

Additional information

Poles	2P, 3P, 4P
Rated Current	10A, 20A, 25A, 32A, 63A
Switching Type	Manual

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for Chint LW32 Changeover Switch.

📥

Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.

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2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.

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?

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?

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?

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?

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?

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.