MCCB Plastic Case Circuit Breaker 125A 250A 400A 630A 800A For Circuit Protection
Product Details
Plastic Case Circuit Breaker 125A
,800A Plastic Case Circuit Breaker
Product Overview
The Chint NM1 and NXM Series MCCBs are the industry standard for reliable circuit protection in low-voltage distribution systems. Engineered to protect circuits and equipment against overloads, short circuits, and undervoltage conditions, these breakers are essential for industrial manufacturing, commercial real estate, and renewable energy projects.
Covering a wide range of frame sizes from 125A to 800A, the Chint MCCB line is designed for both standard AC power distribution and specialized DC Photovoltaic (PV) applications. With a compact footprint and high breaking capacity, these breakers provide the flexibility needed for main incoming lines or sub-distribution feeders in the most demanding electrical environments.
Key Technical Advantages
- High Breaking Capacity (Icu): Available in various breaking levels (S, H, R) to handle fault currents up to 100kA, ensuring the safety of downstream assets during massive electrical surges.
- Specialized DC Versions for Solar: Specifically designed models for DC circuits (up to 1000V DC) featuring enhanced arc-quenching technology, ideal for PV combiner boxes and solar inverters.
- Thermal-Magnetic & Electronic Trip Units: Choose from fixed thermal-magnetic units for standard protection or adjustable electronic trip units for precise selective coordination in complex grids.
- Compact & Modular Design: Standardized frame sizes (125, 250, 400, 630, 800) allow for uniform panel layouts and simplified spare parts management.
- Environmentally Resilient: Built with high-strength, flame-retardant materials capable of operating in extreme temperatures ranging from -35°C to +70°C.
Technical Specifications
| Feature | Detailed Specifications |
| Frame Current (Inm) | 125A, 250A, 400A, 630A, 800A |
| Rated Voltage (Ue) | AC 400V / 690V |
| Number of Poles | 3-Pole (3P) / 4-Pole (4P) |
| Breaking Capacity (Icu) | 25kA, 35kA, 50kA, 70kA, 100kA |
| Insulation Voltage (Ui) | 800V / 1000V |
| Service Breaking Cap. (Ics) | 75% to 100% of Icu |
| Standard Compliance | IEC/EN 60947-2, CE, RoHS, CCC |
Primary Application Scenarios
- Industrial Power Distribution: Main circuit protection for machining centers, assembly lines, and factory floor panels.
- Commercial Buildings: Integrated into GGD or GCK switchgear for office towers, hotels, and shopping malls.
- Solar PV Infrastructure: DC string protection and main DC disconnects for utility-scale solar farms and energy storage systems (BESS).
- Infrastructure & Utilities: Reliable protection for water treatment plants, pumping stations, and telecommunication hubs.
Why Specify Chint MCCBs?
- Global Certification & Trust: Chint is one of the world’s largest manufacturers of low-voltage electrical components. Their MCCBs are fully certified to IEC/EN 60947-2, ensuring compliance with international safety codes.
- Versatile Accessory Range: All breakers can be equipped with auxiliary contacts, alarm contacts, shunt trips, undervoltage releases, and motorized operating mechanisms for remote control.
- Ease of Installation: Supports multiple wiring methods including front-of-board, back-of-board, and plug-in types to fit any cabinet configuration.
- Cost-Effective Reliability: Offers the same protection performance as premium European brands at a significantly better value point for large-scale projects.
FAQ
Q: Can I use the same MCCB for both AC and DC applications?
A: No. You must select the specific DC-rated version of the Chint MCCB for solar or battery applications. DC models include internal permanent magnets to extinguish the more persistent DC arcs.
Q: What is the difference between NM1 and NXM?
A: The NM1 is the classic, time-tested thermal-magnetic series. The NXM is the newer "Next Generation" series which offers higher breaking capacities and a more compact design for modern switchgear.
Q: Are these breakers suitable for motor protection?
A: Yes. We offer specialized motor protection versions of these MCCBs with modified tripping curves (Class 10/20) to handle the high inrush currents of industrial motors.
Product Description
Specification
|
Product name
|
Low pressure molded case circuit breaker
|
|
Place of origin
|
Zhejiang,China
|
Recommend Products
Company Profile
Certifications
Customer Photos
Product packaging
FAQ
Q1: Are you trading company or manufacturer ?
A1: We are manufacturer.
Q2: Do you have your own R&D team?
A2: Yes, we can customize products as your requirements.
Q3: How about the quality?
A3: We have the best professional engineer and strict QA and QC system.
Q4: Can we be your distributor?
A4: We are looking for distributor and agent all over the world.
Q5: How’s the package?
A5: Normally are wooden case, but also we can pack it according to your requirements.
Q6: How’s the delivery time?
A6: It depends on the quantity you need.
-
Indoor Armored Removable High Voltage Switchgear AC Metal Closed Switchgear
Product Overview The KYN550-12 is a revolutionary high-voltage switchgear designed for modern power systems where space is a premium. While maintaining the full functionality and safety of the standard KYN28A-12, the KYN550 features an ultra-slim 550mm width. This "Armored Removable" metal-enclosed unit is engineered for 12kV three-phase AC 50/60Hz systems. It is the preferred choice for high-density power distribution environments, such as internet data centers (IDC), -
OEM LV Electrical Distribution Panel Power Distribution Switchgear Modular Design
Product Overview The GCK Series Low-Voltage Switchgear is a high-performance, fully withdrawable power distribution cabinet designed for AC 50/60Hz systems with rated voltages up to 690V. It is the industry-standard solution for Motor Control Centers (MCC) and main distribution boards in power plants, industrial factories, and large-scale commercial infrastructures. The GCK system utilizes a modular "C-type" profile frame, allowing for high-density circuit integration. Each -
Waterproof Power Distribution Box JXF New Energy Vehicle Charging Protection Box
Product Overview The JXF New Energy Vehicle Charging Protection Box is a premium, wall-mounted safety enclosure designed to house and protect your EV charging station. Whether you are installing a home charger or managing a public parking lot, this box provides a secure, climate-controlled environment for your electrical components. Engineered with high-strength carbon steel or stainless steel, the JXF box prevents unauthorized access, protects against cable theft, and -
0.4KV Variable Frequency Constant Pressure Water Supply Control Cabinets IEC 61439
Product Overview The 0.4kV Variable Frequency Constant Pressure Water Supply Control Cabinet is an automated solution designed to maintain a consistent water pressure across various consumption demands. By utilizing advanced Variable Frequency Drive (VFD) technology, the system adjusts the motor speed of the pumps in real-time, matching the output to the actual water demand. This cabinet features a high-reliability "One-Duty, One-Standby" (1W1S) configuration. In this setup,
