NLM1-125L-3P Molded Case Circuit Breaker | 125A MCCB Air Switch | CHNAILE High-Performance Circuit Breaker

NLM1-125L-3P Molded Case Circuit Breaker | High-Performance MCCB Industrial-Grade Protection Solution

The NLM1-125L-3P Molded Case Circuit Breaker (MCCB) is a high-reliability low-voltage circuit breaker designed for the protection of industrial power systems and electrical equipment. It features a 125A rated current, strong breaking capacity, multi-level protection functions, and stable thermal-magnetic tripping performance, enabling it to quickly disconnect power in dangerous situations such as overload and short circuits, protecting lines and equipment for safe operation.

Suitable for various scenarios including power distribution systems, industrial control cabinets, photovoltaic distribution boxes, mechanical equipment, building electrical systems, municipal engineering, and building power distribution. With its compact structure, strong temperature resistance, and flexible installation, it is the preferred solution for low-voltage power distribution protection in enterprises.

Key Features

⚡ High Breaking Capacity (Icu / Ics)

Multiple breaking levels (L/M/H)

Withstands high current surges, ensuring safe disconnection during faults

Meets the needs of heavy-duty industrial environments

Reliable Protection

Thermomagnetic tripping technology

Overload protection

Short circuit protection

Anti-misoperation design

Durability

High heat-resistant housing material

Anti-aging and impact-resistant

Suitable for environments from -40℃ to high temperature and humidity

Easy Installation

Standardized 3P structure

Wayspread wiring space

Clear panel operation, clearly marked ON/OFF indicators

Technical Specifications

Model: NLM1-125L-3P

Type: Molded Case Circuit Breaker (MCCB)

Rated Current In: 125A

Rated Insulation Voltage Ui: 800V

Rated Operating Voltage Ue: AC 400V / 50Hz

Rated Impulse Withstand Voltage Uimp: 8kV

Breaking Capacity Icu / Ics:

L: 36kA / 25kA

M: 50kA / 35kA

H: 65kA / 50kA

Number of Poles: 3P

Operating Temperature: -40℃ ～ +70℃

Standard Certifications: IEC 60947-2, CCC

NLM1-125L-3P Molded Case Circuit Breaker (MCCB) is a high-performance low-voltage protective device designed for industrial power distribution and equipment safety. It provides stable overload protection, reliable short-circuit interruption performance, and high breaking capacity (Icu up to 65kA), making it ideal for heavy-duty electrical applications.

With its compact structure and excellent heat resistance, this MCCB is widely used in industrial distribution panels, machinery control systems, power distribution cabinets, commercial buildings, smart manufacturing, photovoltaic (PV) power systems, and more.
The product complies with IEC 60947-2, ensuring international standard safety and stability.

The molded case design not only guarantees mechanical strength but also ensures insulation protection and long-term operational durability. Its adjustable thermal-magnetic trip unit provides precise protection under different load conditions, minimizing equipment damage and reducing downtime.

With a clear ON/OFF indicator, user-friendly mounting design, and strong arc-extinguishing capability, the NLM1-125L-3P is an ideal choice for engineers, electricians, and industrial system integrators looking for a stable, efficient, durable, and high-security MCCB solution.