Overload Protected Molded Case Circuit Breaker MCCB Industrial Power Distribution Circuit Breaker

Specifications
Type No: DZL25-32, DZL-63, DZL25-100, DZL25-200 Package Details: Standard Export Color Box/Customized
Gurantee Period: 3 Years Contacts: Double Making And Double Breaking
Rated Insulation Voltage: 690VAC Type: Russia Circuit Breaker BA57 Φ 35
Standards Compliance: IEC 60947-2, UL 489 Other Model: SM1-225
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Overload Protected Molded Case Circuit Breaker

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Molded Case Circuit Breaker MCCB

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Industrial Power Distribution Circuit Breaker

Product Description
High Breaking Capacity Overload Protected Molded Case Circuit Breaker For Industrial Power Distribution Cabinets
Product Overview

Safeguard your industrial infrastructure and ensure uninterrupted uptime with our premium High Breaking Capacity Overload Protected Molded Case Circuit Breaker (MCCB). Specifically engineered for heavy-duty industrial power distribution cabinets, this high-performance circuit breaker provides robust protection against overloads, short circuits, and severe electrical faults.

Manufactured with state-of-the-art arc-extinguishing technology and an ultra-rugged structural matrix, our MCCB guarantees an exceptionally high breaking capacity (Icu up to 85kA/100kA). Whether you are managing electrical grids for manufacturing plants, data centers, oil refineries, or massive commercial facilities, this breaker delivers the reliability your main electrical panels demand.

Technical Specifications & Engineering Benchmarks
Engineering Parameter Industrial Specifications & Standards
Product Type Molded Case Circuit Breaker (MCCB)
Primary Application Industrial Power Distribution Cabinets / Switchgear
Number of Poles 3-Pole (3P) / 4-Pole (4P)
Rated Current (In) Available from 16A up to 1600A (Adjustable options available)
Rated Operational Voltage (Ue) 400V / 415V / 690V AC (50/60 Hz)
Ultimate Short-Circuit Breaking Capacity (Icu) 50kA / 65kA / 85kA / 100kA (At 415VAC)
Trip Unit Technology Thermal-Magnetic (Adjustable) / Electronic Microprocessor
Insulation Voltage (Ui) 800V / 1000V AC
Mechanical / Electrical Lifespan Up to 20,000 / 10,000 Operations
International Standards Compliance IEC/EN 60947-2, CE, RoHS, ISO9001
High Breaking Capacity Molded Case Circuit Breaker technical diagram and product image
Core Features & Engineering Advantages
1. High Breaking Capacity for Intense Industrial Loads

Modern industrial grids experience high prospective fault currents that can instantly destroy standard switchgear. Our MCCB features a reinforced thermodynamic arc-chute configuration that safely isolates and extinguishes electrical arcs within milliseconds. This extreme breaking capacity preserves the structural integrity of your entire power distribution network.

2. Dual Overload & Short-Circuit Thermal-Magnetic Intelligence

Equipped with highly calibrated bimetallic elements and electromagnetic trip linkages, the breaker offers independent, dual-layer safety:

  • Overload Protection: A time-delayed thermal mechanism trips safely when continuous current overloads pose a fire hazard to cables.
  • Short-Circuit Protection: An instantaneous magnetic trigger trips the breaker immediately upon sensing dangerous, high-magnitude fault currents.
3. Industrial-Grade Thermoset Shell (UL94-V0 Rated)

The exterior frame is molded from a proprietary glass-reinforced polyester composite. This heavy-duty shell provides high dielectric strength, resists carbon tracking, and retains structural rigidity at extreme operational temperatures, ensuring it will not sustain a flame or warp under heavy electrical stress.

4. Seamless Switchgear Integration

Engineered for rapid integration into low-voltage main distribution boards (MDBs) and motor control centers (MCCs). The standardized structural profile accommodates standard industrial busbar configurations, terminal shrouds, and auxiliary control accessories (such as shunt trips, undervoltage releases, and auxiliary contacts).

Targeted Industrial Applications

This heavy-duty MCCB is a critical component for global electrical procurement networks, providing protection in:

  • Industrial Plants & Automated Factories: Protecting high-draw motor arrays, air compressors, and localized assembly line distribution sub-panels.
  • Data Centers & Critical Infrastructure: Ensuring steady, fault-isolated power routing to prevent catastrophic data dropouts or server grid damage.
  • Renewable Energy Plants: Acting as a safe main isolator box within large-scale wind turbine distribution hubs and commercial solar PV combiners.
  • Mining & Heavy Machinery Power Hubs: Surviving severe vibrations and dusty environments while managing high-draw earthmoving equipment power grids.
Why Partner With Us? (Your B2B Industrial Switchgear Factory)
  • 100% Quality Calibration: Every MCCB leaves our floor only after undergoing rigorous primary injection testing, contact resistance checks, and insulation dielectric screening.
  • Customizable Configurations (OEM/ODM): We offer tailored trip thresholds, custom terminal busbars, and specific accessory pre-wiring to match your exact panelboard blueprinted specifications.
  • Seaworthy B2B Logistics: All shipments are coated with anti-static barriers, wrapped in moisture-blocking films, and securely crated in robust industrial boxes to ensure zero-damage arrivals worldwide.
Frequently Asked Questions (FAQ)
Q: What is the difference between an adjustable thermal-magnetic trip unit and an electronic trip unit?
A: Adjustable thermal-magnetic units use mechanical dials to modify the current trip parameters manually. Electronic trip units feature a built-in microprocessor that offers highly precise time-delay settings, granular ground-fault protection, and live power monitoring features for smart grid integration.
Q: Can this MCCB be used as a main disconnect switch?
A: Yes. Under the IEC 60947-2 standard, our breakers feature explicit isolation characteristics, meaning they can safely serve as the primary manual disconnect assembly for your industrial control cabinet.
Q: Do you provide type-test certification logs for international project bidding?
A: Absolutely. We provide complete CE compliance documents, third-party laboratory test summaries, and comprehensive quality validation reports to facilitate technical sign-offs during B2B tendering.
Contact Details
Xiamen Rongmai Electrical Equipment Co., Ltd.

Contact Person: Mr. Tan

Tel: 86--8615960356367

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