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Weekly Tech Insights: How the SJK47-63 Miniature Circuit Breaker Ensures Electrical Safety
Product Overview
The SJK47-63 Miniature Circuit Breaker (MCB) from Mingri Electric is a high-performance circuit protection device designed for 220/380V AC systems. With a current range of up to 63A and compliance with GB10963.1, IEC60898-1, and CCC standards, it offers reliable overload and short-circuit protection for residential, commercial, and industrial applications.
Working Principle Explained
The SJK47-63 MCB utilizes a bimetallic strip for overload protection. Under normal load (1.13In), the strip bends slightly, but under overload (1.45In), it bends sufficiently to trigger the trip mechanism. For short-circuit protection, an electromagnetic solenoid responds instantly to high current surges, ensuring rapid disconnection.
Technical Features & Benefits
The SJK47-63 boasts an ultra-high breaking capacity, compact design, and flame-retardant housing. These features make it not only safe and durable but also easy to install in a variety of electrical distribution systems.
| Feature | Benefit |
| Ultra-High Breaking Capacity | Effectively suppresses short-circuit current, preventing equipment damage |
| Compact Design | Saves space in distribution cabinets, allows flexible installation |
| Flame-Retardant Enclosure | Enhances safety, complies with stringent international standards |
Application Scenarios
Ideal for a wide range of environments—from homes and offices to shopping malls and manufacturing plants—the SJK47-63 MCB provides essential protection against electrical faults, ensuring operational continuity and safety.
Why Choose Mingri Electric?
☆☆☆ Mingri Electric combines rigorous manufacturing standards with innovative design to deliver products that are reliable, efficient, and compliant with global certifications. Our SJK47-63 MCB is a testament to our commitment to quality and safety.
About Us:
Mingri Electric Co., Ltd. is a leading provider of high-quality electrical components and solutions, specializing in switchgear,circuit breakers,switches, etc. We are dedicated to delivering innovative products that meet the evolving needs of the global power industry.