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Product Overview
Secure your three-phase industrial and commercial electrical systems with the CHNAILE BD1-63S series 3-Pole Miniature Circuit Breaker (MCB). Specifically engineered for heavy-duty alternating current (AC) distribution up to 400V, this 20A breaker provides essential protection against severe electrical overloads and short circuits. Proudly bearing the CE mark and complying with the rigorous IEC60898-1 international standard, it delivers uncompromising reliability for global markets. Designed for seamless panel integration, it features a standard 35mm DIN-rail mounting clip, allowing electrical contractors to execute fast, secure, and tool-efficient installations in any 3-phase distribution board.
Technical Parameters
Device Category: | AC Miniature Circuit Breaker (MCB) |
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Number of Poles: | 3P |
Rated Current (In): | 5A-63A |
Rated Operating Voltage (Ue): | AC 400V |
Rated Frequency: | 50/60Hz |
Rated Breaking Capacity (Icu): | 6000A (6kA) |
Tripping Characteristic: | Curve C (Optimized for standard inductive and resistive loads) |
Mounting Configuration: | 35mm Standard DIN-Rail |
Standard Compliance: | Fully CE Certified, IEC60898-1 Compliant |
1. Comprehensive Protection Functions
Synchronized 3-Pole Disconnect: Features an internal common trip mechanism. If a fault is detected on any single phase, all three poles trip simultaneously. This prevents the dangerous "single-phasing" of 3-phase motors, protecting expensive industrial machinery from burning out.
Overload Protection: Equipped with precision bi-metallic strips that accurately detect sustained overcurrents, cutting the power before wire insulation degrades or equipment overheats.
Short Circuit Quick Break: Utilizes an advanced electromagnetic tripping system to instantly extinguish massive fault currents up to 6000A, effectively mitigating the risk of electrical panel fires.
2. Premium Material & Robust Structure
High-Quality Flame Retardant Shell: Constructed from industrial-grade, impact-resistant thermosetting materials (V0-grade). It ensures excellent thermal endurance and completely prevents combustion.
Universal DIN-Rail Mounting: Features a heavy-duty pull-down clip at the base for effortless snapping onto standard 35mm DIN rails, ensuring a vibration-resistant fit inside commercial enclosures.
High Conductivity Copper Parts: Internal electrical contacts and sturdy screw terminals are forged from high-purity copper, minimizing contact resistance and preventing dangerous heat build-up under full 3-phase 20A loads.
3. Superior Performance Advantages
Reliable 6kA Breaking Capacity: Confidently interrupts standard fault currents, making it the perfect and highly cost-effective choice for commercial and light-industrial applications.
Clear Visual Status Indication: The distinctive teal-green toggle switches clearly display the 'O OFF' status, allowing facility managers to verify complete circuit isolation instantly.
Global Standard Compliance: Fully CE certified, ensuring seamless customs clearance and market acceptance across Europe, the Middle East, Asia, and South America.
4. Why Choose CHNAILE Factory
Direct Manufacturer: Partner with a primary source factory. We eliminate middlemen to provide you with highly competitive factory-direct wholesale pricing, maximizing your project margins.
Strict Quality Control: Every BD1-63S circuit breaker undergoes 100% rigorous automated testing for tripping accuracy and mechanical endurance before leaving our manufacturing facility.
Global Supply & OEM Support: We boast robust production capacities for bulk orders, rapid global fulfillment, and comprehensive OEM/ODM customization services to prominently display your brand logo.
Target Applications
3-Phase Commercial Power Distribution Boards
Industrial Motor Control Centers (MCC) and Pump Stations
Heavy-duty HVAC (Heating, Ventilation, and Air Conditioning) Power Circuits
Manufacturing Facility Sub-Panels
