Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
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Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device
NXZB MTS Mechanical Interlock for Chint NXB-63 MCB
NXZB MTS Mechanical Interlock for Chint NXB-63 MCB
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Auto Reclosing RCD RCCB 2P/4P 40A/63A Smart
Auto Reclosing RCD RCCB 2P/4P 40A/63A Smart

Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device

Surge Protective Device; IEC/EN 61643-11, GB/T 18802.1; for transient overvoltage protection in low-voltage installations

Model
Number of Poles
Model Code
SKU: NXU-ⅡG 40kA/500V 2P (直流) Category:
Description
Chint NXU-ⅡG 40kA/500V 2P (直流) Surge Protective Device
Maximum continuous operational voltage (Uc): 500V

Product Overview

For NXU-ⅡG 40kA/500V 2P (直流), the official catalogue lists maximum continuous operational voltage (uc) as 500V.

Technical Parameters

Model NXU-ⅡG 40kA/500V 2P (直流)

Key Selling Points

✓ Maximum continuous operational voltage (Uc): 500V
✓ Number of poles: 2P
✓ Maximum discharge current (Imax): 40 kA
✓ Test class: II

Technical Highlights

  • Maximum continuous operational voltage (Uc): 500V
  • Number of poles: 2P
  • Maximum discharge current (Imax): 40 kA
  • Test class: II

Reference Datasheet Pages

The following pages were selected from the model catalogue and are included for technical reference:

NXU-ⅡG 40kA/500V 2P (直流) Catalog and Technical Data

NXU-ⅡG 40kA/500V 2P (直流) technical catalog page 1

Additional information
Model Code

NXU-ⅡGF, NXU-ⅡG20kA/275V, NXU-ⅡG20kA/320V, NXU-ⅡG20kA/385V, NXU-ⅡG20kA/440V, NXU-ⅡG40kA/275V, NXU-ⅡG40kA/320V, NXU-ⅡG40kA/350V, NXU-ⅡG40kA/385V, NXU-ⅡG40kA/440V, NXU-ⅡG40kA/500V, NXU-ⅡG40kA/85V, NXU-ⅡG65kA/275V, NXU-ⅡG65kA/320V, NXU-ⅡG65kA/385V, NXU-ⅡG65kA/440V, NXU-ⅡG100kA/275V, NXU-ⅡG100kA/320V, NXU-ⅡG100kA/385V, NXU-ⅡG100kA/440V, NXU-ⅡG120kA/385V, NXU-ⅡG120kA/440V, NXU-ⅡG160kA/385V, NXU-ⅡG160kA/440V
Number of Poles

1P, 1P+N, 2P, 3P, 3P+N, 4P
Model

NXU-ⅡG 40kA/500V 2P (直流)
Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for Chint NXU-ⅡG NXU-IIG SPD 40kA 500V DC 2P Class II T2 CHNT DC Surge Protective Device.

📥
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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