Advanced Earth Leakage Circuit Breaker for Industrial Safety Protection

Reliable ELCB solutions with thermal-magnetic protection, multiple sensitivity options, and high-speed response for comprehensive personnel and equipment safety in factory automation applications.

Earth Leakage Circuit Breaker - Shihlin Electric Earth Leakage Circuit Breaker BL400-RN
  • Earth Leakage Circuit Breaker - Shihlin Electric Earth Leakage Circuit Breaker BL400-RN
  • Shihlin Electric Earth Leakage Circuit Breaker BL400-RN

Earth Leakage Circuit Breaker

BL400-RN

Rated current: 250, 300, 350, 400A

Breaking Capacity

Model

3P

4P

Icu

(kA)

440V

55

380V

70

220V

100

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
Earth Leakage Circuit Breaker - Shihlin Electric Earth Leakage Circuit Breaker BL400-HN
Earth Leakage Circuit Breaker
BL400-HN

Rated current: 250, 300, 350, 400A

Details
Earth Leakage Circuit Breaker - Shihlin Electric Earth Leakage Circuit Breaker BL400-UN
Earth Leakage Circuit Breaker
BL400-UN

Rated current: 250, 300, 350, 400A

Details
Earth Leakage Circuit Breaker - Shihlin Electric Earth Leakage Circuit Breaker BL630-HN
Earth Leakage Circuit Breaker
BL630-HN

Rated current: 500, 630A

Details

Shihlin All Product Catalog

Download Shihlin All Product Catalog for more details.

How can we ensure maximum personnel safety while maintaining reliable equipment protection in our high-voltage manufacturing operations?

Shihlin Electric's BL400-RN Earth Leakage Circuit Breaker delivers dual-layer protection with thermal-magnetic technology and residual current detection as fast as 0.04 seconds, meeting IEC60947-2 standards. Our 60+ years of manufacturing expertise ensures the reliability your production facility demands. Contact our technical team to specify the ideal sensitivity configuration for your facility's voltage and current requirements.

Manufactured by Shihlin Electric with over 60 years of OEM/ODM expertise, the BL400-RN combines Japanese assembly techniques with high-stability components to ensure reliable performance in demanding industrial settings. The thermal-magnetic protection mechanism responds to both gradual overload conditions and sudden fault currents, while the residual current sensitivity options accommodate various installation requirements from high-protection applications to standard industrial circuits. Whether integrating into factory automation systems, power distribution panels, or machinery control systems, this earth leakage circuit breaker provides the precision protection and stability that OEM/ODM partners and industrial manufacturers expect from a trusted Taiwan-based solution provider committed to safety excellence and operational reliability.