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Earth Leakage Circuit Breaker BL400 | Shihlin Electric

Shihlin Electric's BL400-SN Earth Leakage Circuit Breaker offers thermal magnetic protection up to 400A with IEC 60947-2 compliance for industrial safety.

Industrial Earth Leakage Protection with Thermal Magnetic Technology

Reliable ELCB solutions for factory automation and power distribution systems with certified safety performance

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

Earth Leakage Circuit Breaker

BL400-SN

Rated current: 250, 300, 350, 400A

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Breaking Capacity

Model

3P

4P

Icu

(kA)

440V

30

380V

35

220V

50

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
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Products

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How can you ensure reliable personnel safety while protecting critical production equipment from earth fault hazards?

Shihlin Electric's BL400-SN Earth Leakage Circuit Breaker provides instantaneous fault detection with configurable sensitivity (30-500mA) and high-speed operation (0.04s), minimizing equipment damage and protecting workers. With IEC 60947-2 certification and proven performance across 60+ years of industrial partnerships, our ELCB solutions integrate seamlessly into manufacturing facilities requiring certified electrical safety compliance.

As a leading solution provider with over 60 years of OEM/ODM technical cooperation experience, Shihlin Electric combines precision control with energy-efficient design to maximize operational reliability across diverse industrial sectors. The BL400-SN earth leakage circuit breaker integrates seamlessly into automated production lines and power distribution infrastructure, providing critical protection against ground faults while maintaining system stability. Our professional technical support team ensures lasting customer satisfaction through comprehensive installation guidance and maintenance expertise. Contact Shihlin Electric today to specify the ideal earth leakage protection solution for your industrial automation, factory operations, or power distribution requirements.