CHINT NL1-63 Type A RCCB 1P+N/3P+N

Name: CHINT NL1-63 Type A RCCB 1P+N/3P+N
Brand: CHINT
SKU: 1600723415375

CHINT NL1-63 Type A RCCB 1P+N/3P+N is designed for low-voltage leakage protection in residential, commercial, and industrial distribution systems. It is suitable for distributors, installers, and project buyers looking for practical RCCB solutions.

Poles

Rated Current

Residual Current

Rated Voltage

SKU: 1600723415375 Category: Others

Description

CHINT NL1-63 Type A RCCB 1P+N/3P+N is designed for AC low-voltage distribution circuits and provides reliable residual current protection for personal safety, indirect contact protection, and insulation fault fire prevention. This NL1-63 series configuration is suitable for residential distribution boards, commercial installations, and industrial electrical systems requiring dedicated leakage protection.

Technical Specifications

Parameter	Specification
Model Series	NL1-63
Type	RCCB / Residual Current Circuit Breaker
Rated Current	25A / 40A / 63A
Pole Number	1P+N / 3P+N
Rated Voltage	240V/415V AC
Detection Type	Type A
Residual Current Protection	Earth leakage protection / Indirect contact protection / Fire hazard protection
Breaking Capacity	6kA
Application	Residential distribution boards / Commercial installations / Industrial electrical systems

Additional information

Weight	2 kg
Dimensions	25 × 25 × 25 cm
Rated Current	63A, 25A, 40A
Rated Voltage	240V/415V
Poles	1P+N, 3P+N
Residual Current	30mA, 100mA, 300mA

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for CHINT NL1-63 Type A RCCB 1P+N/3P+N.

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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.