Eaton LGU4250AAG Molded Case Circuit Breaker - UL Listed
Part Number: LGU4250AAG
Quick Summary
The Eaton LGU4250AAG molded case circuit breaker protects industrial power distribution panels while delivering reliable overload and short‑circuit protection. Engineers often wrestle with choosing protection that remains reliable under varying fault conditions and across multiple voltages. This Series G device is UL Listed and HACR rated, featuring adjustable thermal and magnetic trips for precise coordination and a high 200 kAIC interrupt rating at 240V (and 150 kAIC at 415/480V, 65 kAIC at 600V). Its metric mounting hardware and line‑load terminals simplify panel integration, while the 250 A rating supports scalable protection schemes, reducing downtime and maintenance while meeting NEC/IEC requirements. For panel builders and OEMs, it offers a dependable, future‑ready protection solution that minimizes commissioning risk.
Product Information
Extended Description
LGU4250AAG Eaton: Series G MCCB: LG Frame, 250A, Four-pole, neutral 0% protected, 200 kAIC at 240V, 150 kAIC at 415V, 150 kAIC at 480V, 65 kAIC at 600V, Line/load standard w/ metric mounting hardware, Adj. thermal/magnetic
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
LGU4250AAG
UPC
786685184975
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
250 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 Vac 65 kAIC at 600 Vac 150 kAIC at 480 Vac
Number of poles
Four-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 - LGU4250AAG
Eaton Specification Sheet - LGU4250AAG
Eaton Specification Sheet - LGU4250AAG
Selling Policy 25-000 - Distribution and Control Products and Services
Feature 250 A rating with four‑pole LG frame → Business Impact Enables protection of three‑phase systems with neutral in a compact footprint, supporting scalable COP (critical overload protection) while minimizing panel space. Application Ideal for large control panels and machine feeders that demand robust current handling and easy expansion. Feature Adjustable thermal and magnetic trip → Business Impact Enables precise coordination with downstream devices, reducing nuisance trips and improving reliability of protection schemes. Application Suitable for equipment with variable startup currents and diverse fault conditions across mixed voltages. Feature 200 kAIC at 240V; 150 kAIC at 480/415V; 65 kAIC at 600V → Business Impact High fault‑catching capability translates to minimized equipment damage and downtime, improving uptime metrics and service life. Application Critical for energy‑intense applications such as motors, presses, and conveyors. Feature Complete breaker with line/load terminals and metric mounting hardware → Business Impact Streamlines installation and retrofits, lowering commissioning time and field errors. Application Facilitates quick panel integration in IEC environments and standardizes mounting with existing infrastructure. Feature UL Listed; HACR rated → Business Impact Ensures compliance with NEC/IEC requirements and suitability for HVAC/control applications, reducing regulatory risk. Application Ideal for control panels, HVAC equipment, and industrial automation projects. Feature Series G; LG frame; 50–60 Hz operation → Business Impact Delivers consistent performance across global markets, enabling standardization of protection architecture. Application Fits multinational facilities and diverse electrical systems, easing maintenance and sourcing.
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FAQs
LGU4250AAG uses metric mounting hardware and line/load terminals, designed for three‑phase panels with a neutral. It fits standard Series G footprints and supports 50–60 Hz systems, enabling straightforward retrofits and quick commissioning in new builds.
The unit is a 250 A, four‑pole LG frame MCCB with adjustable thermal and magnetic trips. It delivers 200 kAIC at 240V, 150 kAIC at 480/415V, and 65 kAIC at 600V, with 50–60 Hz operation and line/load terminals for simple wiring.
Yes. The LGU4250AAG is UL Listed and HACR rated, ensuring NEC/IEC compliance for HVAC and control panel applications, along with reliable protection performance in industrial environments.
Ideal for industrial panel boards, machine control panels, and process equipment protection. It supports 3‑phase with neutral configurations, accommodates scalable protection schemes, and offers precise coordination with downstream devices.
Series G MCCBs provide adjustable trips for precise coordination, reducing nuisance trips and downtime. The rugged LG frame and modular accessories simplify installation, spare parts sourcing, and long‑term maintenance, delivering a favorable total cost of ownership for industrial systems.