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The CHNAILE BD1-63S 1P 20A 6kA DIN Rail AC Miniature Circuit Breaker is a high-reliability electrical protection device engineered for global low-voltage distribution systems. Designed to operate seamlessly at AC 230/400V and 50/60Hz frequencies, this 1-pole MCB delivers essential protection against dangerous overloads and short circuits in residential and light commercial environments. Fully CE certified and compliant with the IEC60898-1 international standard, it meets the strictest safety requirements for markets across Europe, the Middle East, and Asia. Its universal 35mm DIN-rail mounting design enables fast, tool-efficient installation by electrical contractors, making it a preferred choice for new construction, renovation projects, and OEM equipment integration. Request a free quote today for factory-direct wholesale pricing and bulk order availability.
Parameter | Value | Customer Benefit |
|---|---|---|
Device Category | AC Miniature Circuit Breaker (MCB) | Standardized protection for all common AC circuits |
Number of Poles | 1P | Ideal for single-phase lighting and power outlet circuits |
Rated Current (In) | 20A | Perfect for protecting 4.6kW (230V) or 8kW (400V) loads |
Rated Operating Voltage (Ue) | AC 230/400V | Compatible with global single-phase and three-phase systems |
Rated Frequency | 50/60Hz | Works universally in all countries worldwide |
Rated Breaking Capacity (Icu) | 6000A (6kA) | Safely interrupts standard fault currents without catastrophic failure |
Tripping Characteristic | Curve C | Optimized for standard inductive and resistive loads |
Mounting Configuration | 35mm Standard DIN-Rail | Fast installation in any modern consumer unit or distribution board |
Standard Compliance | CE Certified, IEC60898-1 Compliant | Seamless acceptance in international electrical markets |
Equipped with a precision-calibrated bi-metallic strip, the BD1-63S accurately detects sustained overcurrents that could otherwise cause wire insulation to melt or electrical appliances to overheat. The thermal tripping mechanism provides a graduated response, allowing temporary inrush currents from motor startups while reliably tripping during prolonged overload conditions. This intelligent protection prevents costly equipment damage and reduces the risk of electrical fires in both residential and commercial settings.
The advanced electromagnetic tripping system instantly breaks the circuit within milliseconds when a severe short circuit occurs. With a 6kA rated breaking capacity, this MCB can safely interrupt fault currents up to 6000 Amps, effectively containing the fault and preventing it from spreading to other parts of the electrical system. This rapid response is critical for protecting lives and property from the devastating effects of electrical arcing and fire.
The BD1-63S series is built with premium materials and robust construction to ensure long-term reliability in demanding operating conditions. Its high-quality V0-grade flame-retardant thermosetting shell provides excellent thermal endurance and will not support combustion, even in extreme temperature environments. The sturdy pull-down mounting clip at the base allows for effortless snapping onto standard 35mm DIN rails, ensuring a secure and vibration-resistant fit inside electrical panels.
Internal contacts and heavy-duty screw terminals are forged from high-purity copper, minimizing electrical resistance and preventing dangerous heat build-up even under continuous full 20A loads. The distinctive teal-green toggle switch provides clear visual status indication, with the 'O OFF' marking easily visible from a distance, allowing homeowners and maintenance personnel to verify circuit safety instantly before performing any electrical work.
As a primary source factory, we eliminate all middlemen and pass the cost savings directly to our customers. By partnering with CHNAILE, you can reduce your procurement costs by up to 30% while maintaining the highest quality standards. We offer transparent pricing with no hidden fees and provide volume discounts for bulk orders.
Every BD1-63S circuit breaker undergoes 100% automated testing before leaving our facility. Our state-of-the-art testing equipment verifies tripping accuracy, mechanical reliability, dielectric strength, and insulation resistance to ensure zero defective products reach our customers. We maintain strict ISO 9001 quality management systems throughout our production process.
Our robust production capacity, supported by fully automated MCCB production lines, enables us to manufacture over 1 million circuit breakers annually. We maintain a large inventory of standard BD1-63S MCBs to ensure immediate shipment for urgent orders. With established logistics partnerships, we can deliver to any major port worldwide within 7-15 days for standard orders.
We offer full OEM/ODM customization services to help you build your brand. Our team can customize product logos, packaging, labeling, and even technical specifications to meet your specific requirements. Whether you need private labeling for your distribution business or custom-designed breakers for your equipment, we have the expertise to deliver solutions tailored to your needs.
Our team of experienced electrical engineers provides comprehensive technical support before, during, and after your purchase. We can assist with product selection, application engineering, and troubleshooting to ensure you get the right protection solution for your project.
Residential consumer units and main switchboards
Commercial office lighting and power outlet circuits
Hotel room sub-distribution panels
Industrial control cabinets requiring standard 1P 20A AC protection
Retail store electrical systems
School and university campus buildings
Hospital and healthcare facility auxiliary circuits
Curve B MCBs trip at 3-5× rated current for sensitive loads, Curve C at 5-10× for standard inductive and resistive loads (most common), and Curve D at 10-20× for high-inrush motor loads. The BD1-63S features Curve C tripping, making it suitable for most general-purpose applications.
Yes, the BD1-63S 1P MCB is rated for AC 230/400V operation. In three-phase systems, you can use three separate 1P breakers to protect each phase individually.
The BD1-63S is designed for a minimum of 10,000 mechanical operations and 4,000 electrical operations at rated current, ensuring long-term reliable performance.
All CHNAILE BD1-63S circuit breakers come with a 2-year manufacturer's warranty against defects in materials and workmanship.
Yes, we provide full custom packaging services including branded boxes, user manuals, and labeling to match your brand identity. Minimum order quantities apply for custom packaging.
