Eaton JGU4090FAG Complete MCCB - UL Listed, IEC Rated
Part Number: JGU4090FAG
Quick Summary
Eaton JGU4090FAG is a complete molded case circuit breaker designed for reliable protection in industrial power distribution. In control panels and machine rooms, engineers often battle nuisance trips, limited space, and coordination challenges that slow commissioning. This device carries IEC Rated, UL Listed and CSA Certified approvals, aligning with global safety and performance standards. With Series G and the JG frame compatibility, you gain scalable protection that reduces panel footprint and maintenance costs. Designed for 50/60 Hz systems and high fault-current environments, it helps ensure uptime and easier integration with existing Eaton accessories, translating to lower total cost of ownership and faster project execution for industrial facilities.
Product Information
Extended Description
JGU4090FAG Eaton: Eaton Series G molded case circuit breaker, JG-frame, JG, Fixed thermal, adjustable magnetic trip, Four-pole, 90A, 600 Vac, 250 Vdc, 200 kAIC at 240 Vac, 150 kAIC at 480 Vac, 50 kAIC at 600 Vac, Line and load, 50/60 Hz, 80% rated
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
JGU4090FAG
UPC
786685127019
Product Length/Depth
3.44 in
Product Height
7 in
Product Width
5.34 in
Product Weight
8 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
Type
Complete breaker
Amperage Rating
90 A
Voltage rating
600 Vac, 250 Vdc
Trip Type
T185
Circuit breaker type
JG
Circuit breaker frame type
Complete breaker
Rating
80% rated
Series
Series G
Terminals
Line and load
Frame
JG
Frequency rating
50/60 Hz
Interrupt rating
50 kAIC at 600 Vac 200 kAIC at 240 Vac 150 kAIC at 480 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
Feature → Fixed thermal, adjustable magnetic trip (T185) provides precise overload protection. Business Impact → Reduces nuisance trips and protects critical loads, increasing line reliability. Application → Suitable for motor feeders and critical machine circuits in manufacturing environments. Feature → Four-pole, line and load terminals enable full 3-phase coordination. Business Impact → Improves safety and reduces wiring errors during panel assembly. Application → Ideal for power distribution panels in packaging lines and extrusion processes. Feature → 90 A rating with 600 Vac and 250 Vdc voltage ratings; interrupt ratings up to 50 kAIC at 600 Vac, 200 kAIC at 240 Vac, 150 kAIC at 480 Vac. Business Impact → Handles high fault currents while maintaining selectivity; Application → Main protection in industrial drives and process lines. Feature → Series G complete breaker with JG frame and CE Marked compliance. Business Impact → Simplifies procurement and certification across global sites; Application → Retrofit and new installs in international facilities. Feature → 80% rated and line/load terminals designed for easy installation and compatibility with accessories. Business Impact → Shortens commissioning time and reduces installation labor; Application → Control panels requiring rapid scalability and modular protection.
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FAQs
Install the JGU4090FAG as a four-pole main breaker in a compatible Eaton panel with Line and Load terminals. Ensure proper clearance for the 3.44 in depth and 5.34 in width, and use appropriate lugs or bus bar connections per the series guides. Verify 50/60 Hz supply and secure mounting to maintain alignment with the JG frame.
Key specs include 90 A amperage rating, 600 Vac / 250 Vdc voltage, T185 trip type, and interrupt ratings of 50 kAIC at 600 Vac, 200 kAIC at 240 Vac, and 150 kAIC at 480 Vac. These figures enable precise overload protection and robust fault-current handling in diverse industrial applications.
Yes. The four-pole design, 50/60 Hz compatibility, and fixed thermal with adjustable magnetic trip provide dependable motor protection and selectivity in 3-phase systems, helping prevent unnecessary shutdowns and extending motor life in packaging and extrusion lines.
The JGU4090FAG is IEC Rated, UL Listed, and CSA Certified, with CE Marking as indicated. This combination supports compliance across international markets and streamlines cross-border panel builds and procurement.
Eaton provides application notes, datasheets, and product catalogs (e.g., NG/ND-Frame MCCB, Series G guides). Access to these documents helps with installation planning, lifecycle maintenance, and demonstrating return on investment through reliable protection and reduced downtime.