Eaton LGS3400FAG Complete Molded Case Breaker - 85 kAIC @240V
Part Number: LGS3400FAG
Quick Summary
Eaton LGS3400FAG complete molded case breaker protects power distribution in industrial automation panels. Engineers face challenges with precise trip coordination, space constraints, and downtime during upgrades. It carries IEC rated performance, UL Listed, CSA Certified, and CE Marking for global compliance, enabling reliable protection across regions. Designed for LG frame installations, it combines compact, metric mounting with robust protection, delivering cost-effective, scalable protection for growing panel densities and complex control architectures.
Product Information
Extended Description
LGS3400FAG 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, Metric, 50/60 Hz, 80% rated
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
LGS3400FAG
UPC
782116142583
Product Length/Depth
4.09 in
Product Height
5.48 in
Product Width
5.48 in
Product Weight
16 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
IEC Rated UL Listed 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
80% rated
Series
Series G
Terminals
Line and load
Frame
LG
Frequency rating
50 to 60 Hz
Mounting hardware
Metric
Interrupt rating
50 kAIC at 480 Vac 25 kAIC at 600 Vac 85 kAIC at 240 Vac
Number of poles
Three-pole
Application of Tap Rules to Molded Case Breaker Terminals
Application of Tap Rules to Molded Case Breaker Terminals
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
Breaker service centers
Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2
Eaton Specification Sheet - LGS3400FAG
Eaton Specification Sheet - LGS3400FAG
Eaton Specification Sheet - LGS3400FAG
Feature: 400 A rating, LG frame, three-pole, line-and-load terminals. Business Impact: Handles high-demand feeders with compact enclosure footprint, improving panel density and protection coordination. Application: Ideal for motor control centers and distribution panels in manufacturing environments. Feature: 85 kAIC interrupt rating at 240Vac; 50 kAIC at 480Vac; 25 kAIC at 600Vac; 50/60 Hz; 80% rated. Business Impact: High fault-current protection across multiple supply voltages, reducing equipment damage risk and enabling safer start-up/shutdown sequences. Application: Suitable for mixed-voltage industrial facilities and critical loads. Feature: HACR rated; CE Marked; UL Listed; CSA Certified; IEC rated. Business Impact: Ensures compliance with international electrical codes and safety standards, simplifying procurement and project approvals. Application: Global deployments in panels, switchgear, and control cabinets. Feature: Metric mounting hardware; Line and load terminals; compact footprint. Business Impact: Faster retrofit and new-installation commissioning with easier mechanical integration and wiring. Application: Retrofit projects in legacy cabinets and new control panels in automation lines. Feature: Warranty and service terms; 16–18 month support window. Business Impact: Reduces total cost of ownership with predictable maintenance planning and supplier support. Application: Enterprise procurement and service planning for plant-wide protection.
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FAQs
The LGS3400FAG uses an LG frame with line-and-load terminals and metric mounting hardware, making it compatible with LG-frame distribution panels and motor control centers. Its three-pole configuration supports three-phase systems, and its 50/60 Hz rating matches common industrial power supplies, simplifying retrofits and upgrades.
LGS3400FAG provides 85 kAIC at 240 VAC, 50 kAIC at 480 VAC, and 25 kAIC at 600 VAC, enabling robust short-circuit protection across multiple voltage classes. This allows coordinated protection for mixed-load facilities without oversizing devices.
Yes, the LG-series breaker is HACR rated. It is IEC rated and UL Listed with CSA Certification, plus CE Marked for global compliance, helping streamline safety approvals and cross-border installations.
The unit ships with Eaton’s standard warranty policy: one year from installation or 18 months from shipment, whichever occurs first. Catalogue notes indicate HACR rating, and various Eaton application notes and datasheets are available for installation guidance and coordination strategies.
Specification sheets and application notes are available from Eaton, including data on Series G, LG frame compatibility, and motor protection considerations. Key documents cover tap rules, terminal applications, and MCCB selection to support accurate sizing, wiring, and coordination in control panels.