Eaton LGS3400FAGC Molded Case Circuit Breaker - UL Listed

Part Number: LGS3400FAGC
Manufacturer
Eaton
Part number
LGS3400FAGC

Quick Summary

The Eaton LGS3400FAGC molded case circuit breaker protects industrial power distribution panels from overcurrent and short circuits, delivering dependable protection in demanding environments. Maintenance teams often struggle with nuisance trips and calibration challenges in mixed-load panels, leading to unplanned downtime. UL Listed, IEC Rated, and CSA Certified support global compliance, while CE Marking enhances readiness for European installations. Designed for LG-frame systems, it offers a 400 A rating with fixed thermal and adjustable magnetic trip for precise protection. With 50/60 Hz operation and 100% rated performance, it aligns with modern automation and control panel requirements, reducing spare parts and improving uptime. Its line-and-load terminals and modular design simplify upgrades and service in continuous process environments.

Product Information

Extended Description

LGS3400FAGC Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Fixed thermal, adjustable magnetic trip, Three-pole, 400A, 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 kAIC at 600 Vac, Line and load, 50/60 Hz, 100% rated
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
LGS3400FAGC
UPC
786685291093
Product Length/Depth
4.09 in
Product Height
5.48 in
Product Width
5.48 in
Product Weight
14.4 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
CE Marked
Certifications
UL Listed IEC Rated CSA Certified
Catalog Notes
LG breaker is HACR rated
Type
Complete breaker
Amperage Rating
400 A
Trip Type
T185
Circuit breaker type
LG
Circuit breaker frame type
Complete breaker
Rating
100% rated
Series
Series G
Terminals
Line and load
Frame
LG
Frequency rating
50 to 60 Hz
Interrupt rating
50 kAIC at 480 Vac 25 kAIC at 600 Vac 85 kAIC at 240 Vac
Number of poles
Three-pole
Feature: 400 A amperage rating for high-load feeders. Business impact: supports large motor loads and mains feeders without nuisance trips, improving line uptime. Application: main distribution panels in manufacturing and packaging lines. Feature: Multi-rate interrupt capability with 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 kAIC at 600 Vac. Business impact: enhanced fault clearing with coordinated protection across voltages, reducing arc-flash risk and downstream damage. Application: medium- and high-voltage distribution within process plants. Feature: Fixed thermal with adjustable magnetic trip (T185). Business impact: precise, customizable protection curves that minimize downtime from unnecessary trips while ensuring rapid response to short circuits. Application: critical equipment feeders and control circuits. Feature: Three-pole LG-frame design with line and load terminals. Business impact: straightforward installation, reliable three-phase protection, and easy replacement in existing Series G panels. Application: control cabinets, MCCs, and motor control centers. Feature: 100% rated performance and 50/60 Hz compatibility. Business impact: dependable operation across global facilities and seasonal variations, maintaining consistent protection. Application: automation and process facilities in automotive, water treatment, and discrete manufacturing. Feature: Certifications including UL Listed, IEC Rated, CSA Certified, and CE Marked. Business impact: global compliance and faster project approvals, reducing engineering time and risk. Application: multinational deployments and regulated industries. Feature: HACR-rated catalog note. Business impact: enables safe integration with HVAC and motor systems. Application: building services and machine rooms requiring heat-load protection.

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FAQs

The LGS3400FAGC is designed for LG-frame molded case breakers and Series G installations. It fits standard MCCB slots with line and load terminals and three-pole configuration, enabling straightforward replacement in existing control panels and power distribution assemblies. Verify mounting clearance and terminal torque per Eaton catalogs to ensure full compatibility with your specific panel design.
The unit provides 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, and 25 kAIC at 600 Vac, with a trip type of T185. It is a three-pole, 400 A, 100% rated breaker with fixed thermal and adjustable magnetic trip, allowing precise coordination for varied load profiles in industrial panels.
This MCCB is well-suited for manufacturing lines, process automation, and control panels requiring robust overcurrent protection and fast fault clearing. Its LG-frame compatibility and 50/60 Hz operation make it appropriate for automotive, food and beverage, water treatment, and general machinery applications where reliable three-phase protection is essential.
The LGS3400FAGC carries UL Listed, IEC Rated, CSA Certified, and CE Marked certifications. These credentials indicate compliance with North American and international standards, simplify global deployments, and support safe integration into regulated systems such as HVAC, industrial automation, and building services, thereby reducing project risk and certification time.
Maintenance relies on standard inspection of terminals, contact wear, and trip setting verification. The 400 A rating and 100% rated performance minimize nuisance trips, lowering downtime costs. Its compatibility with existing LG-frame panels simplifies spare-part stock and reduces total cost of ownership through longer service intervals and straightforward replacement in mature control architectures.