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Product Overview
In the realm of hyperscale computing and high-tech manufacturing, even a millisecond of power disruption or a minor panel fire can result in millions of dollars in catastrophic losses. The CHNAILE Ultra-High Capacity 3-Pole Molded Case Circuit Breaker (MCCB) is engineered to prevent these disasters. Featuring a distinctive, highly durable white thermosetting enclosure designed for modern, high-end Main Distribution Boards (MDB), it flawlessly manages massive 400 Ampere continuous three-phase loads. With its formidable 50,000A (50kA) fault-clearing capability and an 8kV lightning-withstand rating, this heavy-duty switchgear ensures your most critical high-tech infrastructure remains online, safe, and fully IEC 60947-2 compliant.
Technical Parameters
Device Category: | Heavy-Duty Commercial/Industrial Circuit Breaker (MCCB) |
|---|---|
Poles Configuration: | 3P (Simultaneous 3-Phase High-Capacity Disconnect) |
Rated Current (In): | 400A (Engineered for massive continuous 3-phase draws) |
Rated Operating Voltage (Ue): | AC 400V |
Rated Insulation Voltage (Ui): | 800V |
Rated Impulse Withstand Voltage (Uimp): | 8kV (Data-center grade surge resilience) |
Ultimate Short-Circuit Breaking Capacity (Icu): | 50kA (Top-tier plasma suppression) |
Service Short-Circuit Breaking Capacity (Ics): | 35kA |
Aesthetic Profile: | Clean White Thermosetting Armor |
Standard Compliance: | GB/T 14048.2 / IEC 60947-2 |
1. Elite Mission-Critical Protection Mechanisms
50kA Plasma Suppression Technology: Large server farms and industrial transformers can unleash explosive short-circuit currents. This MCCB is armed with elongated, high-density arc extinguishing grids. During a fault, it aggressively stretches, fragments, and suffocates 50kA 3-phase plasma arcs in fractions of a millisecond, completely averting electrical fires.
400A Heavy-Load Thermal Tolerance: Centralized cooling systems and massive server racks demand enormous, sustained power. The oversized internal bi-metallic elements are calibrated to absorb these immense continuous thermal loads without yielding to premature nuisance tripping, guaranteeing maximum uptime.
Transient Voltage Firewall (8kV): Equipped with 800V internal dielectric insulation and an 8kV Uimp rating, it guarantees that destructive grid transients, switching surges, and lightning strikes are blocked from reaching highly sensitive downstream IT and fabrication electronics.
2. Specialized Structural & Aesthetic Engineering
Cleanroom-White Thermosetting Shell: Moving beyond traditional black industrial breakers, this MCCB is molded from a premium, V0-rated white polymer. It provides exceptional heat dissipation for 400A 3-phase loads while aligning seamlessly with the strict visual and hygiene standards required in high-tech cleanrooms and modern architectural switchboards.
Heavy-Gauge Hex-Bolt Anchorage: Routing 400 Amps safely demands flawless 3-phase cable termination. The highly visible, heavy-duty hex-socket terminals allow engineers to apply maximum clamping torque to ultra-thick power cables, effectively eliminating micro-arcing and dangerous connection-point heating.
Intuitive Operator Interface: Features a prominent grey operational toggle switch, ensuring facility managers can quickly verify mechanical linkage integrity and safely execute 3-phase power isolation during server hall maintenance.
3. Target Application Scenarios
Due to the rare combination of a 400A 3-Pole architecture, 50kA breaking capacity, and a pristine white enclosure, this MCCB is the ultimate specification for:
Hyperscale Data Centers: Serving as the dedicated main incoming power disconnect for massive server rack aisles and centralized UPS battery rooms.
Semiconductor Fabrication Plants (Fabs): Providing reliable, clean-looking main protection for highly sensitive cleanroom manufacturing equipment and industrial chillers.
Premium Commercial High-Rises: Acting as the primary 3-phase distribution switchgear for luxury hotel sub-mains, corporate headquarters, and high-end retail complexes.
Large-Scale HVAC & Cooling: Managing the immense, continuous 3-phase loads required by centralized precision air conditioning units in commercial infrastructures.
4. Global B2B Partnership with CHNAILE Factory
Direct-to-EPC Cost Efficiency: Sourcing extreme-capacity switchgear directly from our manufacturing floor eliminates the hefty margins imposed by international trading houses, vastly improving the profitability of your high-tech infrastructure bids.
Zero-Compromise IEC 60947-2 Testing: At 400 Amps, reliability is non-negotiable. Every single 3P unit undergoes brutal automated thermal stress tests and 50kA short-circuit validations before receiving its final QC approval.
White-Labeling for Premium Panel Builders: Leveraging our expansive production capabilities, we offer tailored OEM solutions—including custom laser-engraved faceplates and customized packaging—allowing premium system integrators to scale their brand effortlessly on the global stage.
