Eaton LGX3320AAG Complete molded case circuit breaker - UL Listed
Part Number: LGX3320AAG
Quick Summary
Eaton LGX3320AAG Complete molded case circuit breaker protects three-phase loads in industrial control panels. The device delivers reliable overcurrent protection with an LG-frame, complete breaker design and adjustable thermal and magnetic trip for precise coordination. This solution addresses nuisance tripping and settings drift that slow production uptime. UL Listed and HACR rated, it meets common electrical protection standards while supporting IEC markets through its metric mounting and line-load terminals. By aligning with Series G protective strategy, it improves panel reliability, reduces spare-part diversity, and simplifies installation, testing, and maintenance. For engineers seeking scalable protection across machines and lines, this MCCB offers robust performance with straightforward field adjustments and documented compatibility.
Product Information
Extended Description
LGX3320AAG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Complete breaker, Adjustable thermal, adjustable magnetic trip, Three-pole, 320A, 200 kAIC at 240/480 Vac, 65 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
LGX3320AAG
UPC
786685183534
Product Length/Depth
4.09 in
Product Height
5.48 in
Product Width
5.48 in
Product Weight
11.9 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
320 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
200 kAIC at 240/480 Vac 65 kAIC at 600 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 - LGX3320AAG
Eaton Specification Sheet - LGX3320AAG
Eaton Specification Sheet - LGX3320AAG
Feature LG frame, three-pole design delivers rugged protection for three-phase loads in demanding panels. Business impact: supports high-current applications up to 320 A while preserving a compact footprint for panel density and wiring simplicity. Application: suitable for industrial control panels requiring reliable trip coordination. Feature Adjustable thermal and magnetic trip units provide configurable protection curves. Business impact: enables precise coordination and reduces nuisance trips, improving uptime and equipment life. Application: critical for machines with variable loads and demanding startup in production lines. Feature High interrupt rating of 200 kAIC at 240/480 Vac and 65 kAIC at 600 Vac ensures rapid fault interruption. Business impact: minimizes upstream damage and enhances safety margins in high-energy systems. Application: ideal for heavy-duty motor and switchgear protection in medium- to large-scale panels. Feature UL Listed and HACR rated certification support compliance within common electrical standards. Business impact: streamlines supplier qualification and reduces risk during audits. Application: widely used in US-based buildings and compatible with IEC-based panel designs via its metric mounting. Feature Metric mounting hardware and line-load terminals simplify installation and maintenance. Business impact: reduces field adaptation costs and accelerates commissioning. Application: plug-and-play integration with modular panels and standardized enclosure layouts. Feature Precise dimensions and weight (4.09 in length, 5.48 in height/width, 11.9 lb) facilitate accurate enclosure planning. Business impact: improves panel fill calculations and spare-part forecasting. Application: reliable fit for new builds and retrofits alike. Warranty and support considerations are included via Eaton policy for service continuity.
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FAQs
To install LGX3320AAG, align the unit with the LG frame and use the metric mounting hardware provided. Connect the line and load terminals per the panel schematic, ensure secure torque on connections, and mount in a space that allows adequate clearance for heat and accessibility. The three-pole design simplifies wiring and promotes consistent protection across all phases.
LGX3320AAG features adjustable thermal and magnetic trip units, enabling you to tailor the instantaneous and long-time protection curves for precise coordination with downstream devices. This reduces nuisance trips and improves selective protection across machines, panels, and feeders, contributing to higher uptime and safer isolation during faults.
Yes, LGX3320AAG is UL Listed and HACR rated, designed to meet common North American protection standards while supporting integration in IEC-based environments through its metric mounting. Users gain a robust, certified protection solution with broad compatibility for panel builders and OEMs operating in mixed-market facilities.
Key specs include a 320 A amperage rating, three poles in the LG frame, and an interrupt rating of 200 kAIC at 240/480 Vac (and 65 kAIC at 600 Vac). It operates at 50/60 Hz with line-load terminals and metric mounting hardware. These details guide enclosure sizing, wire routing, and protective coordination in existing or new panels.
The product is covered under Eaton's Selling Policy 25-000, offering a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Warranty support includes standard product servicing, replacement options, and access to Eaton technical resources for maintenance planning and part availability.