Eaton LGS9400AAG LG-frame Series G Complete MCCB - UL Listed

Part Number: LGS9400AAG
LGS9400AAG
Manufacturer
Eaton
Part number
LGS9400AAG
Category

Quick Summary

The Eaton LGS9400AAG is a complete molded case circuit breaker designed to protect power distribution panels in industrial facilities. Engineers often struggle with tuning adjustable trips to prevent nuisance trips while delivering true fault protection. UL Listed certification, HACR-rated motor protection, and a 50–60 Hz operating range ensure reliable performance across IEC markets and North American installations. Designed for 400 A four-pole LG-frame protection, the device simplifies wiring and panel integration, delivering faster commissioning and consistent protection. Its metric mounting hardware and robust warranty support procurement and long-term serviceability for global operations.

Product Information

Extended Description

LGS9400AAG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Complete breaker, Adjustable thermal, adjustable magnetic trip, Four-pole, 400A, Line and load, 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 kAIC at 600 Vac, 0-100% prot neutral pole
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
LGS9400AAG
UPC
782116120574
Product Length/Depth
4.09 in
Product Height
7.22 in
Product Width
7.22 in
Product Weight
20 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
50 kAIC at 480 Vac 25 kAIC at 600 Vac 85 kAIC at 240 Vac
Number of poles
Four-pole
Application of Multi-Wire Terminals for Molded Case Circuit Breakers Application of Multi-Wire Terminals for Molded Case Circuit Breakers 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 NG and ND-Frame molded case circuit breakers NG and ND-Frame molded case circuit breakers NG and ND-Frame molded case circuit breakers Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Adjustable thermal and magnetic trip units. Business Impact: Enables precise coordination with load profiles, reducing nuisance trips and enabling selective protection. Application: Suitable for IEC-based control panels and industrial feeders where protection settings must adapt to changing loads and motor inrush. Feature: Four-pole LG-frame design with line and load terminals. Business Impact: Simplifies three-phase wiring, improves wiring organization, and minimizes panel footprint. Application: Ideal for motor control centers and distributed control panels in manufacturing environments. Feature: High interrupt ratings—85 kAIC at 240 VAC, 50 kAIC at 480 VAC, 25 kAIC at 600 VAC. Business Impact: Withstands high fault currents, reducing system downtime and equipment damage. Application: Critical feeders and industrial equipment in high-current installations. Feature: 400 A rating with 50–60 Hz compatibility. Business Impact: Supports scalable protection for evolving facilities and power networks. Application: Common in mid- to high-power control panels and IEC-market projects. Feature: Certifications and warranty—UL Listed, 25-000 policy with defined coverage. Business Impact: Ensures compliance and predictable maintenance costs. Application: Procurement-ready for regulated environments and ongoing service planning. Feature: Mounting and terminals—metric hardware with line/load terminals. Business Impact: Eases field wiring and panel assembly, reducing installation time. Application: Industrial panels requiring reliable, code-compliant mounting solutions.

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FAQs

The LGS9400AAG uses metric mounting hardware and LG-frame dimensions for straightforward panel integration. Verify panel cutout, mounting rails, and line/load terminal clearance, and follow the UL/IEC wiring guidelines to ensure proper neutrality and fault-current paths. This reduces commissioning time and ensures consistent protection across assemblies.
This MCCB features adjustable thermal and magnetic trip units with a 400 A rating. It provides 85 kAIC at 240 VAC, 50 kAIC at 480 VAC, and 25 kAIC at 600 VAC, suitable for multi-wire and three-phase circuits. These specs support selective coordination and robust fault protection in industrial environments.
Yes. The LGS9400AAG is designed for IEC-based control panels and motor protection applications, offering HACR-rated performance and adjustable trips to match motor inrush and load profiles. Its Series G LG-frame construction ensures compatibility with common IEC accessories and control circuitry.
The device is UL Listed, which validates compliance with widely adopted electrical protection standards in North America. Its HACR-rated capability further supports motor protection in compliance-driven motor control installations and panel assemblies.
Eaton provides a warranty aligned with policy 25-000 (one year from installation or 18 months from shipment, whichever occurs first). This coverage, plus Eaton’s service centers and product documentation, supports maintenance planning and long-term ROI for critical protection equipment.