Mini Circuit Breaker | 3P, 50A, 415V AC | Trip Curve C | 10kA SCCR | DIN Rail Mount | 80mm | UL1077

The ASI NDB1-125C50-3 DIN Rail Circuit Breaker is a high-current, three-pole 50A breaker, designed for industrial automation, power distribution, and control panel applications. This UL1077-recognized miniature circuit breaker (MCB) features a C Trip Curve, making it ideal for general-purpose circuit protection where moderate inrush currents are present.

With a high 10kA short circuit capacity, this 3-pole 50A breaker ensures reliable overload and short circuit protection for 480V AC electrical systems. A visual trip indication window provides quick status identification, improving troubleshooting efficiency. The screw clamp wire terminations allow for secure and stable connections, ensuring long-term durability in demanding environments.

This DIN rail-mounted circuit breaker is designed for quick and easy installation on standard 35mm DIN rails, making it a space-saving solution for industrial control panels and electrical enclosures. Additionally, optional accessories such as an auxiliary contact, alarm contact, and shunt release are available for enhanced functionality and monitoring.
Key Features & Benefits:

🔹 3-Pole, 50A, 480V AC Rating – Delivers reliable protection for industrial control panels and power distribution systems.
🔹 C Curve Tripping Characteristic – Provides optimal protection for circuits with moderate inrush currents.
🔹 10kA Short Circuit Capacity – Ensures high-reliability protection against fault currents.
🔹 UL1077 Recognized – Meets stringent safety and compliance standards for industrial applications.
🔹 Visual Trip Indication Window – Allows for quick identification of tripped circuits, improving troubleshooting efficiency.
🔹 Screw Clamp Wire Terminations – Ensures secure, vibration-resistant connections for long-lasting durability.
🔹 DIN Rail Mounted for Easy Installation – Compact design allows for quick, space-saving installation on standard 35mm DIN rails.
🔹 Optional Accessories Available – Compatible with auxiliary contacts, alarm contacts, and shunt releases for enhanced functionality.
Applications:

🔹 Industrial Control Panels – Protects circuits in automation, machinery, and electrical distribution systems.
🔹 Factory & Process Automation – Ensures safe operation of industrial equipment and motor controls.
🔹 Power Distribution Systems – Ideal for load centers, power supplies, and commercial electrical panels.
🔹 Building & Facility Electrical Protection – Provides reliable overload and short circuit protection in commercial and industrial buildings.
Why Choose ASI?

🔹 Reliable High-Current Protection – Designed for 50A circuit protection in demanding industrial environments.
🔹 Space-Saving DIN Rail Mount Design – Easily integrates into existing panel setups with minimal space requirements.
🔹 UL1077 Recognized for Compliance & Safety – Meets industry regulations for supplementary circuit protection.
🔹 Fast & Easy Installation – Screw clamp terminals and DIN rail mounting ensure hassle-free setup.
🔹 Trusted by Electrical Engineers & OEMs – Used in automation, power distribution, and electrical control applications.

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