Metasol ACB: Choosing the Right Air Circuit Breaker for Reliable Power Protection

LS ELECTRIC
Aug 12
3 min read

Modern electrical systems demand protection devices that are reliable, intelligent, and capable of handling high fault currents. Whether you're designing power distribution systems for manufacturing plants, commercial buildings, data centers, or critical infrastructure, selecting the right Air Circuit Breaker (ACB) is essential for ensuring operational safety and continuity.

LS ELECTRIC's Beyond X™ Susol & Metasol Air Circuit Breakers (ACBs) are engineered to deliver exceptional performance, advanced protection, and smart monitoring capabilities, making them an ideal choice for today's demanding electrical environments.

What is an Air Circuit Breaker (ACB)?

An Air Circuit Breaker (ACB) is a low-voltage protective device designed to protect electrical circuits from overloads, short circuits, and other electrical faults. It automatically interrupts the power supply whenever abnormal conditions occur, safeguarding equipment, minimizing downtime, and ensuring personnel safety.

ACBs are commonly installed as the main incoming breaker in:

Industrial facilities
Commercial buildings
Data centres
Hospitals
Power distribution panels
Critical infrastructure

Why Choose LS ELECTRIC Beyond X™ Susol & Metasol ACB?

The Beyond X™ Susol & Metasol ACB series combines high breaking capacity, compact design, intelligent monitoring, and advanced protection in a single solution.

High Performance with Compact Design

Susol & Metasol ACBs are available with ratings up to 6300A and offer a fully lined-up 4-frame design. Each frame maintains a compact size, helping panel builders optimize switchboard dimensions while simplifying installation and maintenance.

Outstanding Protection Capabilities

LS ELECTRIC ACBs provide dependable protection against:

Overload conditions
Short circuits
Electrical faults
System abnormalities

With Icu = Ics up to 150kA at 500Vac, these breakers deliver outstanding fault interruption capability for demanding industrial applications.

Advanced Smart Trip Unit

One of the key highlights of the Susol & Metasol series is the Smart Trip Unit, which goes beyond conventional circuit protection.

Key capabilities include:

Accurate electrical measurement and metering
Advanced protection and diagnostics
Event recording and fault analysis
Communication support for monitoring systems
Improved maintenance planning
Enhanced operational reliability

The Smart Trip Unit enables engineers to detect issues early, reduce downtime, and improve the overall efficiency of electrical distribution systems.

Real-Time Monitoring with LSE SmartViewer

The LSE SmartViewer software enhances power management by allowing users to monitor and analyze ACB performance in real time.

Benefits include:

Live operational monitoring
Electrical data analysis
Fault diagnosis
Event history tracking
Performance reporting
Better maintenance planning

Together, the Smart Trip Unit and SmartViewer create a complete intelligent power protection solution.

Built for Safety and International Standards

LS ELECTRIC has achieved one of Korea's highest KS ratings for safety and functionality.

The Susol & Metasol ACB series is certified by multiple international organizations, including:

KEPIC (Nuclear Rating)
LR
ABS
DNV
KR
BV
GL
RINA
NK

The breakers also comply with:

IEC 60947-2 (Air Circuit Breakers)
IEC 60947-3 (DSU without OCR)

These certifications demonstrate the product's reliability across industrial, marine, and critical infrastructure applications.

Key Technical Specifications

Specification	Details
Current Rating	Up to 6300A
Breaking Capacity	Icu = Ics up to 150kA / 500Vac
Neutral Conduction	100% N Phase Current Capacity
Frame Design	Compact 4-frame lineup
Standards	IEC 60947-2 & IEC 60947-3

Key Benefits

High breaking capacity for demanding applications
Compact design for optimized panel space
Intelligent Smart Trip Unit with diagnostics
Real-time monitoring through LSE SmartViewer
Excellent protection coordination
Wide range of accessories
International certifications
Reliable performance and long service life

Applications

LS ELECTRIC Susol & Metasol ACBs are ideal for:

Manufacturing industries
Commercial complexes
Data centres
Hospitals
Airports
Utility substations
Oil & Gas facilities
Infrastructure projects
Power distribution systems

Why LS ELECTRIC?

With decades of expertise in electrical power solutions, LS ELECTRIC continues to deliver innovative products that combine safety, reliability, and smart digital technology. The Beyond X™ Susol & Metasol ACB series reflects this commitment by offering advanced protection, intelligent monitoring, and dependable performance for modern power distribution systems.