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Chint NB1-63DC DC MCB (1A-63A)
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Chint NB1-63DC MCB 1-63A 1P/2P/4P, DC250V/500V/1000V, Solar PV System Overload & Short-Circuit Protection
1. 核心概述 (Overview)
The Chint NB1-63DC Series is a specialized line of DC miniature circuit breakers (MCBs) designed for photovoltaic (solar PV) systems, battery banks, and other DC power distribution applications. With pole configurations in 1P, 2P, and 4P, rated currents from 1A to 63A, and voltage ratings up to DC1000V, these breakers provide reliable overload and short-circuit protection for DC circuits, ensuring safety and stability in solar installations and industrial DC power systems.
2. 关键特性 (Key Features)
- Wide Pole & Current Range: Available in 1P, 2P, and 4P configurations with rated currents spanning 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, and 63A to match diverse PV system requirements.
- High DC Voltage Ratings: Supports DC250V, DC500V, and DC1000V operation, ideal for solar string and combiner box applications.
- Dual Protection Mechanism: Combines thermal overload protection (for slow current spikes) and magnetic short-circuit protection (for rapid fault clearing) to safeguard PV panels, inverters, and wiring.
- IEC/GB Certified: Compliant with IEC 60947-2 and GB 10963.1 standards, meeting global safety benchmarks for DC circuit breakers.
- Compact DIN Rail Design: Standard modular form factor with tool-free DIN rail mounting, simplifying installation in solar combiner boxes and control panels.
- High Breaking Capacity: With high short-circuit interrupting ratings, suitable for the high fault currents common in large-scale solar PV systems.
- Durable Construction: Flame-retardant housing and high-grade internal components ensure reliable performance in harsh outdoor and industrial environments.
3. 型号解析 (Model Decoding)
| Specification | Core Interpretation |
|---|---|
NB1-63DC |
Chint NB1-63 Series DC Miniature Circuit Breaker |
1P/2P/4P |
Number of poles (1, 2, or 4 poles) |
1A-63A |
Rated operational current (In) |
DC250V/500V/1000V |
Rated DC operational voltage |
4. 典型应用 (Applications)
- Solar photovoltaic (PV) systems (string combiner boxes, solar panels)
- Battery storage systems and off-grid power installations
- DC power distribution in industrial and commercial facilities
- Telecommunication base station power supply systems
- Electric vehicle charging stations and DC charging piles
DATA SHEET
| Attribute | Value |
|---|---|
| Brand | Chint Electric |
| Series | NB1-63DC Series |
| Product Type | DC Miniature Circuit Breaker (MCB) |
| Pole Configurations | 1P, 2P, 4P |
| Rated Current (In) | 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Rated DC Voltage | 250V, 500V, 1000V |
| Protection Functions | Overload Protection, Short-Circuit Protection |
| Breaking Capacity | 6kA / 10kA (Model-Dependent) |
| Mounting Type | DIN Rail Mount |
| Standards Compliance | IEC 60947-2, GB 10963.1 |
| Certifications | CE, CCC, RoHS |
| Application | Solar PV Systems, Battery Storage, DC Power Distribution, Telecommunication, EV Charging Stations |
Care Instructions
Care Instructions
