NLM1L-800L-4P Molded Case Circuit Breaker with Residual Current Protection | 800A MCCB | Industrial-grade Safety Protection and Adaptive Protection System

➤ High-Performance 800A Industrial-Grade Molded Case Circuit Breaker with Residual Current Circuit Breaker

The NLM1L-800L-4P is a professional-grade 800A residual current circuit breaker (MCCB) designed for high-load environments. It features a high-strength flame-retardant housing, optimized heat dissipation structure, and intelligent leakage detection unit. It offers stable performance, rapid response, and adaptability to various harsh industrial scenarios, representing a perfect combination of reliability and safety.

➤ Intelligent Leakage Protection, Precise and Reliable

Built-in intelligent leakage detection + adaptive analysis technology

Supports AC/Type A leakage monitoring modes

Faster trigger response, lower false alarm rate

Suitable for critical applications: smart factories, energy systems, commercial buildings, large distribution cabinets

Its high-precision protection makes electrical systems safer to operate while reducing downtime, making it particularly popular with overseas contractors and automation users.

➤ High Current 800A + Strong Breaking Capacity

Suitable for high-current power distribution environments, such as:

Heavy Industry

Large and Medium-sized Factories

Data Center Main Power Distribution

Medical and Transportation Systems

Strong breaking capacity and excellent heat dissipation design ensure stable operation under high loads for extended periods.

➤ Innovative Design, Adapted to International Market Demands

IEC Standard Design

Compact Structure, Clear Wiring

Strong Environmental Adaptability (High Temperature/Humidity/Dust Environments)

Long Mechanical Life and Excellent Vibration Resistance

These advantages make it particularly popular in overseas markets.

➤ Intelligent production line ensures more stable quality

The NLM1L-800L-4P utilizes an intelligent production line system throughout the entire process. Automated equipment (AI vision inspection, automatic gluing, and automatic screw fastening) ensures greater consistency and reliability for every product.

This is why global customers widely praise it for being "stable, durable, and with an extremely low failure rate."

➤ OEM/ODM Support – Create Your Own MCCB

We offer:

OEM Branding

ODM Appearance/Parameter Customization

Packaging Privatization

Special Structure and Function Development

Whether you are a brand owner, engineering company, or supply chain platform, we can provide high-quality, low-risk, and reliably delivered professional MCCB solutions.

Why do global customers prefer the NLM1L-800L-4P?

✔ High stability, with a failure rate far lower than comparable MCCBs

✔ Intelligent leakage protection algorithm, resulting in fewer false trips

✔ Compliant with global standards (IEC), facilitating export

✔ Intelligent assembly line manufacturing, ensuring consistent quality

✔ Supports OEM/ODM, suitable for brand expansion

✔ Stable supply chain, reliable delivery

✔ High current 800A + high breaking capacity, suitable for heavy-duty applications

This makes it the primary choice for many overseas engineering companies, industrial customers, and distributors.

The NLM1L-800L-4P molded case residual current circuit breaker (MCCB) is a high-performance MCCB integrating high current carrying capacity, intelligent residual current protection, international standard design, intelligent streamlined manufacturing, and OEM/ODM customization capabilities. With its superior stability, strong environmental adaptability, and global market-oriented structural design, it has become a trusted professional power distribution core product for international customers and an ideal choice for upgrading industrial and commercial power distribution systems.