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Secure your three-phase industrial and commercial electrical systems with the CHNAILE BD1-63S 3P AC 20A 6kA miniature circuit breaker. Specifically engineered for heavy-duty alternating current distribution up to 400V at 50/60Hz, this 3 pole 20A MCB 6kA delivers essential protection against severe electrical overloads and short circuits that can damage valuable equipment and cause costly downtime. Proudly bearing the CE mark and fully compliant with the rigorous IEC60898-1 international standard, this industrial MCB 3 phase 20A provides 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. Every unit undergoes 100% rigorous automated testing for tripping accuracy and mechanical endurance before leaving our manufacturing facility, ensuring consistent performance you can depend on.
Parameter | Specification |
|---|---|
Device Category | AC Miniature Circuit Breaker (MCB) |
Number of Poles | 3P |
Rated Current (In) | 20A (5A-63A available) |
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 |
| | |
The most critical safety feature of this CE certified 3P MCB for industrial equipment is its internal common trip mechanism. If a fault is detected on any single phase, all three poles trip simultaneously. This prevents the dangerous "single-phasing" condition that commonly causes 3-phase motors to burn out prematurely, protecting your expensive industrial machinery investment and reducing unplanned maintenance costs.
Equipped with precision bi-metallic strips that accurately detect sustained overcurrents, this 400V 3 phase circuit breaker 6kA cuts power before wire insulation degrades or equipment overheats. The calibrated tripping response ensures nuisance tripping is minimized while providing reliable protection against gradual overload conditions that can lead to electrical fires.
Utilizes an advanced electromagnetic tripping system to instantly extinguish massive fault currents up to 6000A. This rapid response effectively mitigates the risk of electrical panel fires and limits damage to downstream equipment. The 6kA breaking capacity makes this C curve 3 pole miniature circuit breaker the ideal cost-effective solution for commercial and light-industrial applications where standard fault currents are expected.
Constructed from industrial-grade, impact-resistant thermosetting materials with a V0 flame retardant rating, the BD1-63S ensures excellent thermal endurance and completely prevents combustion even under extreme fault conditions. 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. The heavy-duty pull-down clip at the base provides effortless snapping onto standard 35mm DIN rails, ensuring a vibration-resistant fit inside commercial enclosures even in high-vibration industrial environments.
As a direct manufacturer with decades of experience in electrical protection solutions, CHNAILE eliminates middlemen to provide you with highly competitive factory-direct pricing, maximizing your project margins. Our robust production capacities support bulk orders with rapid global fulfillment, and we offer comprehensive OEM/ODM customization services to prominently display your brand logo. The distinctive teal-green toggle switches provide clear visual status indication, allowing facility managers to verify complete circuit isolation instantly, enhancing workplace safety. Fully CE certified, our products ensure seamless customs clearance and market acceptance across Europe, the Middle East, Asia, and South America.
This DIN rail mount 3P MCB 20A is ideal for a wide range of industrial and commercial applications including 3-phase commercial power distribution boards, industrial motor control centers (MCC) and pump stations, heavy-duty HVAC power circuits, manufacturing facility sub-panels, and commercial lighting systems. Its C curve tripping characteristic makes it particularly well-suited for protecting inductive loads such as motors, transformers, and compressors.
A 6kA breaking capacity means the circuit breaker can safely interrupt fault currents up to 6000 amperes without sustaining damage or causing harm to personnel or equipment.
Yes, the BD1-63S is designed to operate reliably on both 50Hz and 60Hz electrical systems.
Please contact our sales team for detailed information about minimum order quantities and OEM customization options.
Yes, all CHNAILE BD1-63S series circuit breakers come with a standard manufacturer warranty. Contact us for specific warranty terms.
