Earth Leakage Circuit Breaker
BL400-UN
Rated current: 250, 300, 350, 400A
Breaking Capacity
|
Model |
3P |
4P |
|
|
Icu (kA) |
440V |
85 |
|
|
380V |
85 |
||
|
220V |
125 |
||
Ics = 50%Icu
Specification
- Thermal magnetic
- Standard: IEC60947-2
- Rated current: 250, 300, 350, 400A
- Rated current sensitivity: 30 - 100 - 500mA (high speed) ; 100 - 300 - 500mA
- Pole: 3P / 4P
- Operating time: 0.04s (high speed) ; 0.1 - 0.4 - 0.8 - 2.0s
- Certification
- Files Download
- Related Products
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How can you ensure reliable earth fault protection across your high-current industrial power distribution networks without compromising equipment uptime?
Shihlin Electric's BL400-UN Earth Leakage Circuit Breaker delivers instantaneous earth fault detection with configurable sensitivity levels (30-500mA) and response times as fast as 0.04 seconds, protecting your critical manufacturing equipment while meeting international IEC60947-2 standards. Our 60+ years of OEM/ODM experience ensures seamless integration with your existing factory automation and power distribution systems. Request a technical consultation to optimize your electrical safety infrastructure.
Leveraging over 60 years of OEM/ODM partnership expertise, Shihlin Electric's earth leakage circuit breaker integrates advanced thermal magnetic technology with professional engineering support to maximize operational safety and minimize downtime. The BL400-UN series is specifically designed for factory automation, motion control systems, and comprehensive power distribution networks requiring precise fault detection and rapid response capabilities. Whether you're protecting critical industrial equipment, optimizing energy efficiency, or ensuring personnel safety in high-current applications, our ELCB solutions provide the reliability and performance standards that world-class manufacturers demand. Contact our professional services team today to discover how Shihlin Electric's earth leakage protection devices can enhance your facility's electrical safety infrastructure.





