Nale Electric is willing to work together with domestic and foreign merchants to create brilliance!
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Product Overview
When servicing high-power industrial machinery, operators must be certain that the power supply is completely dead. The CHNAILE Heavy-Duty 4-Pole Miniature Circuit Breaker (MCB) solves the critical issue of neutral wire feedback by simultaneously severing all three live phases (L1, L2, L3) and the neutral conductor. Rated for continuous 32-Ampere loads across AC 400V systems, this industrial-grade protective switchgear is indispensable for complex infrastructure projects. Equipped with a vivid green linkage mechanism and an optimized DIN-rail base, it empowers electrical panel builders to construct ultra-safe enclosures for factory automation and heavy motor control applications.
Technical Parameters
Device Category: | AC Miniature Circuit Breaker (MCB) |
|---|---|
Poles Configuration: | 4P (Total Electrical Isolation) |
Rated Current (In): | 32A (Optimized for heavy industrial loads) |
Rated Operating Voltage (Ue): | AC 400V |
Rated Frequency: | 50/60Hz |
Short-Circuit Breaking Capacity (Icu): | 6000A (6kA) |
Trip Curve Type: | Curve C (Handles high inrush currents of motors) |
Mounting Method: | 35mm Standard DIN-Rail Locking Clip |
Standard Compliance: | GB/T 10963.1 (CCC Certified) |
Total Circuit Severance: The unified 4-pole switching mechanism guarantees that the neutral line never remains connected while the phases are open. This strictly adheres to heavy-industry safety codes, protecting maintenance technicians from unpredictable neutral-line shock hazards.
Heavy Motor Thermal Tolerance: The reinforced bi-metallic overload sensors are specifically tuned to handle the sustained 32A current draw required by large industrial pumps and elevator winches, preventing catastrophic cable melting without nuisance tripping.
Instant Magnetic Fault Clearance: Engineered with high-performance electromagnetic coils that rapidly detect and quench devastating short-circuit faults up to 6000A, confining the electrical explosion safely within the breaker's arc chutes.
2. Superior Material & Design Integration
Vibration-Proof Casing: Manufactured from an advanced, fire-retardant industrial polymer. The structural integrity of the housing is reinforced to withstand the constant, severe vibrations generated by stamping machines and factory conveyors.
Maximum Copper Density: Features oversized pure copper conductors and heavy-torque screw terminals. This design dramatically minimizes contact resistance, ensuring the breaker runs cool even when pumping 32 Amps across all four poles continuously.
Rigid DIN-Rail Anchor: Equipped with a high-tension bi-stable mounting clip that bites firmly onto the 35mm rail, preventing the unit from dislodging during transit of pre-assembled electrical control cabinets.
3. Target Application Scenarios
Due to its complete 4-pole isolation capability and heavy 32A rating, this MCB is highly sought after by EPC contractors for:
Factory Automation (PLC) Panels: Acting as the ultra-safe main incoming switch for robotic assembly lines and automated conveyor control boxes.
Commercial Elevator & Escalator Controls: Mandated protection to isolate hoistway motors and cabin power supplies safely during routine lift maintenance.
Mining & Heavy Machinery: Providing resilient power distribution for industrial crushers, ventilation fans, and heavy-duty water treatment pumps.
Construction Site Temporary Power: Serving as the main disconnect in temporary distribution boxes, ensuring site workers are protected from unpredictable wiring faults.
4. Global B2B Partnership with CHNAILE Factory
Direct B2B Pricing Strategy: We are a primary manufacturing facility. By bypassing trading companies, we offer you aggressively negotiated wholesale pricing to keep your bidding proposals competitive.
Automated 4-Pole Sync Testing: Every single unit is subjected to rigorous computerized inspections to guarantee that all 4 poles open and close with perfect microsecond synchronization before packaging.
Extensive OEM/ODM Capabilities: With scalable production lines, we readily accommodate customized housing colors, personalized laser-etched branding, and bespoke packaging for global electrical distributors.
