Chint NXB-125 2p 125A DC Miniature Circuit Breaker Original

CHINT 125A 2P DC Breaker – Reliable DC Circuit Protection

The CHINT 125A 2-Pole DC Breaker is specifically designed for direct current (DC) applications such as solar PV systems, battery banks, and DC power distribution. It offers reliable protection against overloads and short circuits in DC circuits, ensuring system safety and equipment longevity.

Features of CHINT 125A 2P DC Breaker:
Rated Current: 125A Designed to handle high current loads in DC systems.
2-Pole Configuration: Simultaneously disconnects both positive and negative DC lines for enhanced safety.
DC-Specific Design: Built to manage the arc characteristics and polarity sensitivity of direct current, unlike standard AC breakers.
High Breaking Capacity: Efficiently interrupts fault currents to prevent equipment damage and fire hazards (breaking capacity varies by model, typically up to 6kA or higher).
Fast Trip Response: Rapid disconnection during fault conditions protects sensitive DC components.
Compact Modular Construction: DIN rail-mountable for easy installation in control panels or distribution boxes.
Wide Voltage Range: Suitable for various DC voltage levels, often up to 500V DC or more (depending on model).
Compliance with Standards: Manufactured to meet DC protection standards such as IEC 60947-2 or equivalent.

Functions of CHINT 125A 2P DC Breaker:
Overload Protection: Prevents damage from prolonged over current by tripping when the current exceeds the rated limit.
Short-Circuit Protection: Instantly interrupts high fault currents to protect connected equipment and wiring.
Safe Isolation: Acts as a manual switch to safely isolate DC circuits during maintenance or emergencies.
Polarity Protection: Helps prevent damage caused by incorrect wiring or reverse polarity in DC circuits (when designed with polarity marking).

Applications:
Solar photovoltaic (PV) systems
Battery energy storage systems (BESS)
DC charging stations
Telecommunications and industrial DC panels
Off-grid and hybrid renewable systems