Eaton LGH3400AAG Molded Case Breaker - UL Listed

Part Number: LGH3400AAG
Manufacturer
Eaton
Part number
LGH3400AAG

Quick Summary

The Eaton LGH3400AAG molded case circuit breaker provides reliable protection for electrical panels in industrial automation. Engineers often struggle to balance fast, selective tripping with minimizing panel downtime and nuisance trips. This model carries UL Listed certification and HACR rating, and it supports IEC-style, adjustable thermal and magnetic trip units for flexible protection schemes. By leveraging the Series G LG-frame design, users gain robust protection with straightforward installation, improved panel density, and predictable maintenance intervals, while keeping a sharp focus on safety, compliance, and total cost of ownership.

Product Information

Extended Description

LGH3400AAG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Adjustable thermal, adjustable magnetic trip, Three-pole, 400A, 100 kAIC at 240 Vac, 65 kAIC at 480 Vac, 35 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
LGH3400AAG
UPC
782116120611
Product Length/Depth
4.09 in
Product Height
5.48 in
Product Width
5.48 in
Product Weight
14.1 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.
Certifications
UL Listed
Catalog Notes
Adjustable thermal, adjustable magnetic trip units are typically used in IEC markets and are not UL or CSA listed, LG breaker is HACR rated
Type
Complete breaker
Amperage Rating
400 A
Trip Type
Adjustable thermal, adjustable magnetic
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
35 kAIC at 600 Vac 100 kAIC at 240 Vac 65 kAIC at 480 Vac
Number of poles
Three-pole
Feature → Business Impact → Application: The LGH3400AAG uses an LG-frame, three-pole design rated at 400 A, enabling high-current protection in compact space. This translates to higher available runtime for essential equipment and reduced risk of false trips during start-up. Application: ideal for motor starters and distribution panels in manufacturing lines where space is at a premium and protection accuracy is critical. Feature → Business Impact → Application: Adjustable thermal and magnetic trip units allow precise coordination with downstream protections, reducing downstream fault impact and enabling selective isolation. Application: control cabinets and power centers in IEC markets seeking flexible protection settings and repeatable performance. Feature → Business Impact → Application: Line and load terminals with metric mounting hardware streamline panel integration and reduce installation time, improving total installed cost and field reliability. Application: new builds and retrofits in mixed-voltage environments where rapid, reliable wiring is essential. Feature → Business Impact → Application: 100 kAIC at 240 Vac, 65 kAIC at 480 Vac, and 35 kAIC at 600 Vac interruption ratings provide robust short-circuit withstand across typical industrial scenarios, minimizing downtime and equipment damage. Application: data centers, packaging lines, and process industries that demand high fault immunity. Feature → Business Impact → Application: UL Listed and HACR-rated capabilities ensure compliance with safety standards and compatibility with a broad range of fire and motor protection requirements. Application: panel builders targeting both UL and IEC-based installations. Feature → Business Impact → Application: Compact dimensions (4.09 in depth, 5.48 in height and width) and 14.1 lb weight support easy mounting, reduced enclosure footprint, and faster serviceability. Application: retrofit projects where space is constrained without sacrificing protection.

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FAQs

Wire the device using its line and load terminals and secure it with metric mounting hardware specified for LG-frame MCCBs. Confirm three-pole configuration and ensure correct torque on terminals as per the catalog notes. This MCCB is designed for straightforward panel integration, minimizing wiring errors and speeding up commissioning in both new builds and retrofits.
The LGH3400AAG features adjustable thermal and magnetic trip units with a 400 A rating. Interruption ratings are 100 kAIC at 240 Vac, 65 kAIC at 480 Vac, and 35 kAIC at 600 Vac. It operates at 50/60 Hz and supports reliable fault isolation while allowing coordination with downstream protective devices to limit system-wide outages.
Yes. The LGH3400AAG uses an LG frame designed for IEC environments and provides adjustable trip units commonly used in IEC markets. It is HACR rated and UL Listed, aligning with many regional safety requirements. For strictly UL/CSA-listed configurations or specific regional approvals, verify catalog notes and choose the appropriate variant.
This MCCB is UL Listed and HACR rated, supporting safe operation for motor and general-protection applications. It is designed for 50/60 Hz systems and supports a wide range of industrial panel requirements. Always confirm regional compliance needs with your procurement and engineering teams when planning an installation.
The product carries Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. For maintenance, rely on Eaton’s technical documents and product catalogs, including application notes and MCCB selection guides, to optimize protection coordination and minimize downtime over the equipment lifecycle.