Mingri Electric Launches SJKM3L ELCB: Advanced Earth Leakage Protection for Modern Electrical Systems
Mingri Electric introduces the SJKM3L ELCB Earth Leakage Circuit Breaker, a sophisticated protection device designed for 230V/415V AC systems (50/60Hz). With adjustable residual currents from 30mA to 500mA and ratings of 125A/160A, it offers comprehensive ground-fault protection for demanding industrial and commercial applications.ribution panels.
Technical Features
The SJKM3L series features 800V insulation, high-breaking capacity up to 50kA, and dual tripping modes (non-delayed and time-delayed). Available in 2P, 3P, and 4P configurations, it supports both distribution and motor protection with mechanical endurance up to 40,000 cycles.
Intelligent Protection Features

With 3-step adjustable residual current settings and flexible delay options, the SJKM3L provides precise protection coordination. Its thermal-magnetic tripping mechanism ensures reliable response to both overloads and short-circuits, while the isolation function enhances maintenance safety.
Application Scenarios

Ideal for manufacturing facilities, commercial buildings, and infrastructure projects, the SJKM3L delivers reliable ground-fault detection where electrical safety is critical. Its compact design and modular accessories allow for easy integration into various distribution systems.
Conformity & Dependability
Compliant with IEC60947-2 standards, the SJKM3L undergoes rigorous testing to ensure consistent performance. Mingri Electric's commitment to quality ensures this breaker meets the highest standards of electrical safety and reliability.
Why Choose Mingri Electric
Mingri Electric combines rigorous testing, international standards compliance, and customer-focused innovation. The SJKM3L series reflects our commitment to quality and electrical safety worldwide.







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