LS MC-85A-AC220V-AC Contactor

MC-85A-AC220V is a 3-pole AC contactor from the Metasol series manufactured by LS Electric (South Korea). It is mainly used for remote making and breaking of circuits, as well as frequent starting and stopping of AC motors. As an upgraded replacement for the GMC series, it features compact size, stable performance and environmental friendliness.

Model Explanation

Full model: MC85A-30-22-M7-S-E (standard configuration)

Key Technical Parameters

Product Features

1. High-performance design: Made of high-quality alloy materials with copper contacts for high reliability.
2. Safety protection: Finger-proof design with IP20 protection to prevent accidental contact.
3. Flexible mounting: Supports rail or screw mounting; accessories can be installed side or front.
4. Accessory compatibility: Directly mountable with LS overload relays and supports various auxiliary contact extensions.
5. Energy-saving and efficient: Lower power consumption than conventional contactors with more stable operation.

Applications

Motor control in industrial automation production lines

Control of fan, water pump and other fluid loads

Control of compressors, conveyors and other mechanical equipment

Used as main or branch switch in power distribution systems

System upgrade by replacing GMC-85 contactors

Replacement Options

Same-brand Replacements

MC-85A-DC24V: 24V DC coil version

MC-85A-AC110V/AC380V: Other AC coil voltage versions

Cross-brand Replacements

Installation & Maintenance Notes

1. Confirm coil voltage matches control power supply before installation.
2. Main circuit wiring should use suitable cables (≥16mm²) according to rated current.
3. Auxiliary circuit (control loop) is recommended to use 1.5mm² cables.
4. Regularly inspect contact wear; replace contactor if wear exceeds 1mm.
5. Keep the contactor clean to avoid performance degradation from dust and oil.

Ordering Information

Standard model: MC-85A-AC220V (MC85A-30-22-M7-S-E)

Optional accessories: Auxiliary contact modules, mechanical interlocks, surge suppressors, etc.

Packaging: Single unit with installation manual

Environmental Advantages of LS Metasol Series Contactors

As an upgraded replacement for the GMC series, LS Metasol series contactors excel in eco-friendly design, fully comply with international environmental standards, and achieve energy conservation and emission reduction through technological innovation, supporting the development of green industry. Their environmental advantages are detailed below across multiple dimensions:

1. Compliance with International Environmental Standards

Full RoHS compliance: Strictly follows EU RoHS Directive, free of six hazardous substances including lead, mercury, cadmium, hexavalent chromium, PBB and PBDE, with internationally leading material environmental performance.

REACH regulation compliance: Designed in consideration of EU REACH requirements, restricting the use of SVHC to reduce environmental and health risks.

Low VOC emissions: Eco-friendly production processes reduce volatile organic compound emissions, meeting green manufacturing standards.

Complete international certifications: CE, UL and other authoritative certifications ensure global recognition for green procurement worldwide.

1. Low-power Energy-saving Design

III. Long Life & High Reliability Design

1. Extra-long mechanical and electrical life

Mechanical life up to 25 million operations, electrical life up to 2.5 million operations, far exceeding industry averages.

Reduces equipment replacement frequency, lowering resource consumption and waste.

Cuts maintenance costs and downtime, improving productivity.

2. High-durability materials

High-quality copper alloy contacts with excellent wear and arc resistance extend service life.

High-strength engineering plastic housing resists corrosion and aging, suitable for harsh industrial environments.

Sealed structure prevents dust and moisture ingress, enhancing stability and reducing failures.

1. Compact Design & Resource Optimization
2. Space-saving design

Modular construction reduces volume by approx. 20–30% compared to conventional contactors, saving panel space.

Supports dense mounting, reducing enclosure material usage and carbon footprint in production and transport.

2. Standardization & compatibility

Directly compatible with LS overload relays without extra adapters, reducing part variety and inventory.

Universal accessory design simplifies manufacturing and reduces resource waste.

Supports rail and screw mounting (models up to 150AF) for flexible installation and better space utilization.

1. Safe & Eco-friendly Arc Management

Fully enclosed structure: Prevents arc emission, reduces environmental pollution and fire risks.

Arc suppression technology: Built-in high-efficiency arc extinguishing system quickly quenches arcs and reduces harmful gas emissions.

Finger protection: IP20 rating prevents accidental contact while reducing dust buildup, improving stability and service life.

1. Environmental Adaptability & Sustainability
2. Wide temperature range: Operates from -25°C to +55°C, reducing reliance on air conditioning and heating and cutting auxiliary energy use.
3. Strong anti-interference: High EMC performance reduces grid and nearby equipment interference, improving system stability.
4. Recyclable design: Easy disassembly; main materials (copper, iron, plastic) are recyclable, supporting circular economy.
5. Green packaging: Degradable and recyclable packaging materials reduce single-use waste.

VII. Environmental Value in Applications

VIII. Summary Comparison of Environmental Advantages

1. Selection & Application Recommendations
2. Select the appropriate contactor model based on load type, prioritizing low-power versions.
3. Use with LS overload relays for optimal system compatibility and energy efficiency.
4. For long-running equipment, permanent magnet contactors are recommended for maximum energy savings.
5. Perform regular maintenance and keep units clean to extend life and enhance environmental value.

LS Metasol MC Series Contactor Model List & ABB Replacement Cross-reference

1. MC Series Model System Description

LS Metasol MC series contactors are upgraded replacements for the GMC series, featuring modular design with various frame sizes: 18AF, 22AF, 32AF, 40AF, 50AF, 65AF, 85AF, 100AF, 150AF, 225AF, 300AF, 400AF, 500AF, 630AF, 800AF. Each frame offers multiple rated current options.

Model Naming Rule: MC-[Rated Current][Structure Code]-[Coil Voltage]

Structure code: a/b for different terminal types (a = screw, b = clamp)

Coil voltage: AC24V, AC36V, AC42V, AC48V, AC110V, AC220V, AC380V, DC24V, etc.

1. Complete Model List (by Frame Size)
2. Small Current Frames (18AF / 22AF)

2. Medium Current Frames (32AF ~ 150AF)

3. Large Current Frames (225AF ~ 800AF)

III. LS MC Series vs ABB Contactor Cross-reference (with Order Codes)

1. Replacement Selection Notes
2. Auxiliary contact configuration: LS MC series comes standard with 2NO+2NC (small types 1NO+1NC), while ABB equivalents have 1NO+1NC. For identical configuration, select models suffixed “11” (e.g., A9-30-11).
3. Coil voltage matching: Ensure ABB contactor coil voltage matches the original LS unit (AC220V, AC110V, DC24V, etc.).
4. Mounting dimensions: MC series is 20–30% smaller than GMC and similar in size to ABB AF series, fitting existing rails directly.
5. Overload relay compatibility: MC series mounts directly with LS MT series; ABB contactors require matching TA series relays.
6. Accessory compatibility: MC supports various auxiliary extension modules; ABB replacements use corresponding RL series accessories.
7. Special Model Notes

Reversing contactors: MC reversing series = MCR (e.g., MCR-40a), corresponding to ABB AF reversing contactors (e.g., AF40-30-10).

Capacitor contactors: MCC series (e.g., MCC-32a), corresponding to ABB UA series (e.g., UA30-30-10).

DC contactors: MCD series (e.g., MCD-40a), corresponding to ABB AL series (e.g., AL40-30-10).