BB1-63 AC Miniature Circuit Breaker (MCB) — Reliable Protection for AC Distribution Systems
The BB1-63 is a compact, high-performance AC Miniature Circuit Breaker engineered specifically for 230V single-phase AC distribution circuits. Designed and manufactured by Baiwei Electric (BOVVT), this MCB delivers reliable dual protection against both overloads and short-circuit faults, safeguarding personnel, equipment, and electrical installations. With a robust 6kA short-circuit breaking capacity, available in 1P and 2P configurations, and standard 35mm DIN rail mounting, the BB1-63 is the ideal protective device for residential, commercial, and light industrial AC power distribution worldwide.
Key Features
- Dual Electrical Protection for AC Circuits: Combines overload protection and short-circuit protection in one compact device. The thermal-magnetic tripping mechanism ensures fast, precise disconnection under fault conditions in AC systems, preventing equipment damage and electrical fires.
- Visual On/Off Indicator: Clear mechanical position indicator allows operators to instantly verify the switching status at a glance, enhancing operational safety and simplifying maintenance workflows.
- Flame-Retardant Modular Design: Constructed with high-grade flame-retardant insulating housing material, ensuring fire safety. The standard modular form factor enables quick, tool-assisted DIN rail (35mm) installation, reducing wiring time and labor costs.
Technical Specifications
| Parameter |
Value |
| Model |
BB1-63 |
| Rated Voltage (Un) |
230V AC |
| Rated Current (In) |
Up to 63A |
| Short-Circuit Breaking Capacity (Icn) |
6kA |
| Poles |
1P / 2P |
| Mounting Type |
DIN Rail (35mm) |
| Tripping Characteristic |
Standard (Curve B/C) |
| Compliance |
GB/T 10963.1 / IEC 60898-1 |
Typical Applications (AC Systems)
- Residential lighting and socket circuits (AC power)
- Commercial shop and office AC power distribution
- Small-scale industrial control panels (AC)
- RV, marine, and off-grid AC power systems
- Smart home and IoT-enabled AC electrical panels
Why Choose BOVVT AC MCBs?
All BOVVT AC Miniature Circuit Breakers are manufactured under strict ISO-certified quality management systems, ensuring consistent performance and long-term reliability. We offer comprehensive OEM/ODM services, including custom rated currents, tripping curves, branding, and packaging. Whether you need standard configurations or bespoke solutions, our AC MCBs are engineered to meet the highest safety standards and global market requirements. Contact us today for a quote or to discuss your custom requirements!
