Eaton LGC4300FAG Complete MCCB - UL Listed Series G 200kAIC
Part Number: LGC4300FAG
Quick Summary
Complete MCCB protects industrial power distribution and control panels. Eaton's LGC4300FAG delivers robust LG-frame protection with precise thermal-magnetic trip for reliable panel protection. Engineers often contend with nuisance trips, improper trip settings, and space constraints in 50/60 Hz environments; this solution offers fixed thermal and adjustable magnetic trip (T185) to tailor protection without compromising panel real estate. It holds IEC Rated, UL Listed, and CSA Certified marks with CE compliance, supporting global deployments. The combination of 300 A capacity, four-pole LG frame design, and metric mounting provides scalable protection and easier commissioning across a range of industrial applications.
Product Information
Extended Description
LGC4300FAG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Fixed thermal, adjustable magnetic trip, Four-pole, 300A, 200 kAIC at 240 Vac, 100 kAIC at 480 Vac, 50 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
LGC4300FAG
UPC
786685183138
Product Length/Depth
4.09 in
Product Height
7.22 in
Product Width
7.22 in
Product Weight
15.7 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
300 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 600 Vac 100 kAIC at 480 Vac 200 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
LG frame Complete MCCB design minimizes panel footprint while delivering robust protection for control panels and machine feeders. Feature: compact four-pole LG frame; Business Impact: saves space and simplifies wiring in dense panel layouts; Application: industrial control panels with limited mounting space. Feature: fixed thermal with adjustable magnetic trip (T185); Business Impact: precise protection settings reduce nuisance trips while enabling coordinated protection along the power chain; Application: motor drives and high-inertia loads. Feature: 300 A rating with 80% rated operation; interrupt ratings of 50 kAIC at 600 VAC, 100 kAIC at 480 VAC, and 200 kAIC at 240 VAC; Business Impact: high fault-current protection improves safety and minimizes downtime; Application: critical power feeders and machinery. Feature: Line and load terminals with metric mounting; Business Impact: straightforward installation and compatibility with international hardware standards; Application: new builds and panel upgrades. Feature: Certifications including CE Marked, IEC Rated, UL Listed, CSA Certified; HACR rated catalog notes; Business Impact: global compliance reduces sourcing risk and speeds deployment; Application: cross-border automation projects. Feature: Warranty per Eaton policy (one year from installation or 18 months from shipment); Business Impact: clear, predictable support and maintenance planning; Application: asset lifecycle management in manufacturing.
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FAQs
Install the four-pole LG frame breaker using line and load terminals with the metric mounting hardware. Ensure proper clearances per panel design, and connect feeders to the line side and protected circuits to the load side. The unit’s compact LG footprint simplifies layout, while the 300 A rating supports demanding panel loads without oversizing the bus.
This MCCB uses fixed thermal with an adjustable magnetic trip (T185). It is rated for 300 A with 80% rated capacity, and provides interrupt ratings of 50 kAIC at 600 VAC, 100 kAIC at 480 VAC, and 200 kAIC at 240 VAC, making it suitable for high fault-current environments in industrial plants.
Yes. The breaker is designed for 50/60 Hz operation and is CE Marked, IEC Rated, UL Listed, and CSA Certified, with HACR-rated catalog notes for HVAC and motor-related applications, supporting global deployment in regulated environments.
Utilize the metric mounting and line/load terminals for fast, secure connections. The four-pole design enables effective phase protection and coordination in multi-channel feeds. Its high interrupt ratings allow safer shutdown under fault conditions, reducing downtime during maintenance or fault events.
Eaton’s warranty policy provides one year from installation or eighteen months from shipment, whichever occurs first. This supports predictable service planning, with access to Eaton’s technical resources for installation guidance and troubleshooting.