ASI NDB2Z-63C40-1 DC Circuit Breaker | 1-Pole, 40A, 125V DC | Thermal Magnetic MCB | C Trip Curve | DIN Rail Mount | UL1077 Rated

The ASI NDB2Z-63C40-1 is a high-performance, UL1077-rated DC circuit breaker, designed for supplemental protection in industrial, automation, and renewable energy applications. Rated for 40A, 1 pole, 125V DC, this thermal magnetic miniature circuit breaker (MCB) provides reliable short circuit and overload protection for a variety of DC electrical systems.

Featuring a C trip curve, this DC DIN rail breaker is ideal for general-purpose industrial applications, ensuring balanced tripping characteristics while effectively handling moderate inrush currents. The NDB2Z-63C40-1 offers visual status indication, providing quick fault identification to minimize system downtime.

This compact DC circuit breaker is 18mm wide, mounts on 35mm DIN rail, and features flame-resistant housing with shock-proof screw clamp wire terminations, ensuring a safe, secure, and durable connection. RoHS compliant and factory-tested at 300%, the NDB2Z DC rated MCB is engineered for long-lasting performance and serves as a drop-in replacement for existing supplemental circuit breakers.
Key Features & Benefits:

🔹 40A, 1-Pole DC Circuit Breaker – Provides dependable circuit protection for 125V DC applications.
🔹 Thermal Magnetic Protection – Ensures stable short circuit and overload protection.
🔹 C Trip Curve – Handles moderate inrush currents, ideal for general-purpose applications.
🔹 Space-Saving DIN Rail Mount – 18mm wide, designed for efficient panel integration.
🔹 UL1077 Rated – Meets supplemental circuit protection standards for industrial applications.
🔹 Visual Trip Indication – Enables quick fault identification and system diagnostics.
🔹 Flame-Resistant Housing – Enhances safety and durability in industrial environments.
🔹 Screw Clamp Terminations – Provides secure, stable, and easy-to-use wire connections.
🔹 RoHS Compliant & 300% Factory Tested – Ensures high-quality performance and reliability.
Applications:

🔹 Renewable Energy Systems – Ideal for solar panel protection, battery storage, and wind power applications.
🔹 Industrial Control Panels & Automation – Ensures safe circuit protection in PLC systems and motor controls.
🔹 DC Power Distribution – Reliable protection for power management and industrial DC electrical circuits.
🔹 Battery-Powered Systems & EV Charging – Secures DC power sources in off-grid energy and electric vehicle infrastructure.
🔹 OEM & Custom Electrical Assemblies – Trusted by panel builders, electrical engineers, and system integrators.
Why Choose ASI?

🔹 Reliable DC Circuit Protection – UL1077 recognition ensures safety and compliance in DC applications.
🔹 Compact, Space-Saving Design – 18mm width allows for efficient use of panel space.
🔹 Easy Installation & Quick Maintenance – Screw clamp terminals simplify secure wiring connections.
🔹 Trusted by Electrical Professionals – Used in solar energy, automation, and DC power distribution.
🔹 Factory-Tested for Quality & Reliability – Rigorously tested to guarantee performance.

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