PV DC Breaker 2P 1000V 32A Solar Miniature Circuit Breaker

Name: PV DC Breaker 2P 1000V 32A Solar Miniature Circuit Breaker
Brand: Newtrend

Description

Product Overview

PV DC Breaker 2P 1000V 32A is designed for solar photovoltaic DC circuits that require compact overcurrent and short-circuit protection in a 2-pole 1000VDC configuration. This model is suitable for PV string protection, combiner boxes, battery-side disconnect sections, and renewable energy DC distribution systems.

Main Features

2P configuration for 1000VDC photovoltaic and DC applications
32A rated current for practical solar string and combiner box protection
DIN rail installation for compact panel and enclosure assembly
Suitable for OEM, project buyers, distributors, and export supply
Compact miniature breaker structure for standardized low-voltage DC panel design

Technical Specifications

Model Family	NB1-63DC / equivalent DC MCB family
Poles	2P
Rated Current	32A
Rated Voltage	1000VDC
Breaking Capacity	6kA
Trip Curve	Type C
Mounting	35mm DIN rail
Standard	IEC/EN DC breaker standard family

Typical Applications

Solar PV string protection
Photovoltaic combiner boxes
Battery energy storage DC circuits
Renewable energy control cabinets
OEM low-voltage DC protection panels

Buyer Notes

This page is focused on one direct-intent configuration: 2P 1000V 32A PV DC breaker. Compared with broad mixed-voltage pages, this format is easier for search engines and B2B buyers to match with a specific purchasing need.

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for PV DC Breaker 2P 1000V 32A Solar Miniature Circuit Breaker.

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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.

Curve Selection

How to choose between Tripping Curves B, C, and D for this miniature circuit breaker?

Curve B trips at 3–5 In (designed for resistive loads, electric heating, and domestic appliances with negligible inrush). Curve C trips at 5–10 In (the standard international choice for residential and commercial lighting, socket outlets, and small induction motors). Curve D trips at 10–14 In (specifically engineered for high-inrush inductive equipment such as industrial transformers, heavy motors, compressors, and welding circuits).

Breaking Capacity

How do I determine whether 6kA or 10kA breaking capacity is required for my installation?

Breaking capacity (Icn/Icu) must exceed the calculated prospective short-circuit fault current at the installation point. 6kA (IEC 60898-1) is standard for residential consumer units and sub-distribution branch circuits located downstream. 10kA (IEC 60947-2) is required for industrial facilities, main switchboards, commercial distribution panels, or circuits situated close to supply transformers where fault levels are high.

Poles & Neutral Isolation

How to choose the correct number of poles (1P, 1P+N, 2P, 3P, 3P+N, 4P) for single-phase and three-phase circuits?

For single-phase 230V circuits: 1P provides active phase protection; 1P+N or 2P isolates both live and neutral lines simultaneously (essential for TT earthing systems and sensitive sub-panels). For three-phase 400V systems: 3P protects balanced 3-wire motor loads; 3P+N or 4P is required for 4-wire mixed single-phase loads to ensure complete neutral disconnection during isolation.

DC vs AC Application

Can this circuit breaker be used in DC circuits (Solar PV, Battery Storage, Telecom)?

Standard AC breakers cannot safely extinguish DC arcs due to the absence of natural zero-crossing current. For DC circuits (60V to 1000V DC), select specialized DC breakers (such as DZ158-125 DC or NM8NDC series) equipped with permanent magnetic arc-blowout chutes and strictly observe polarity wiring to prevent arc re-ignition.

Modular Accessories & Interlocks

What modular accessories and mechanical interlocks can be fitted to this breaker?

Standard modular clip-on accessories can be mounted directly on the side without tools: OF (Auxiliary Contact for remote status indication), SD (Alarm Contact for trip fault signaling), MX (Shunt Trip for remote emergency tripping), MN (Under-voltage Release for voltage loss protection), and NXBZ mechanical interlock kits for manual generator/mains transfer switches.