Eaton FG3090 Engine Generator MCCB - UL Listed
Part Number: FG3090
Quick Summary
The FG3090 Engine Generator MCCB from Eaton provides robust protection for engine-driven power systems up to 600 V. Engineers often struggle to select a molded case circuit breaker that can handle reverse power flow, fixed trips, and generator start/stop sequences without compromising reliability. This model carries UL Listed, CSA Certified, and IEC Rated certifications, ensuring compliance across North American and international standards. With a tight line/load configuration and a fixed trip, it delivers dependable protection while enabling straightforward installation in engine generator assemblies. Leverage this solution to enhance safety, reduce downtime, and streamline procurement within industrial power generation applications.
Product Information
Extended Description
FG3090 Eaton: Eaton Series C complete EG molded case circuit breaker, F-frame, FG, Fixed thermal and magnetic trips, Three-pole, 90A, 600 Vac, 18 kAIC at 240 Vac, 14 kAIC at 480 Vac, Line/load, Engine generator, Reverse, 60 Hz, Fixed
Product Name
Eaton complete engine generator molded case circuit breaker
Catalog Number
FG3090
UPC
786679269725
Product Length/Depth
7 in
Product Height
6 in
Product Width
5 in
Product Weight
4 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
CSA Std. C22.2 No. 5 IEC 947-2 UL Listed CSA Certified IEC Rated UL 489
Amperage Rating
90 A
Voltage rating
600 Vac
Trip Type
T186
Circuit breaker type
FG
Circuit breaker frame type
Complete breaker
Terminals
Line and load
Frame
F
Frequency rating
60 Hz
Class
Engine generator
Pickup
Fixed
Interrupt rating
18 kAIC at 240 Vac 14 kAIC at 480 Vac
Generator rating
32 kVA/26 kW at 240 Vac, 65 kVA/52 kW at 480 Vac, 81 kVA/65 kW at 600 Vac
Number of poles
Three-pole
Functions
Reverse
Engine generator circuit breakers catalog
Circuit Breakers Explained
Eaton Specification Sheet - FG3090
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 90 A amperage rating and three-pole FG frame with 600 Vac operation → Business Impact → Application: Provides robust short-circuit protection for engine-driven generators, reducing arc exposure and equipment damage, improving uptime and safety in critical power systems; ideal for engine generator sets and standby power installations. Feature: 18 kAIC at 240 Vac and 14 kAIC at 480 Vac → Business Impact → Application: High interrupt capability minimizes fault consequences and cabinet damage during generator faults; suitable for medium-kV class generator rooms and remote installations. Feature: Line and load terminals with fixed trip (T186) → Business Impact → Application: Simplifies installation and predictable performance during automatic start/stop cycles; aligns with standard wiring in complete engine generator MCCB assemblies. Feature: Certifications including UL Listed, CSA Certified, IEC Rated → Business Impact → Application: Ensures regulatory compliance and seamless procurement across global projects; supports code-required protection in electrical protection & circuit control environments. Feature: 32 kVA/26 kW at 240 Vac, 65 kVA/52 kW at 480 Vac, 81 kVA/65 kW at 600 Vac generator ratings → Business Impact → Application: Matches a range of engine generator outputs for scalable protection; enables design reuse across multiple generator sizes in industrial facilities. Feature: 60 Hz frequency rating and fixed pickup → Business Impact → Application: Consistent performance with standard US and international generator sets; reduces tuning needs during system integration and commissioning.
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FAQs
The FG3090 is a three-pole, 90 A molded case circuit breaker designed for complete engine generator protection. It supports 60 Hz operation and 600 Vac systems, with line/load terminals for straightforward integration into engine-driven power assemblies.
FG3090 provides 90 A, 600 Vac with an interrupt rating of 18 kAIC at 240 Vac and 14 kAIC at 480 Vac, enabling effective fault handling in generator environments while protecting both generators and connected loads.
Yes. FG3090 carries UL Listed, CSA Certified, and IEC Rated certifications, ensuring compliance with applicable electrical codes and facilitating safe procurement for industrial generator installations.
FG3090 uses an FG frame with 7 in length, 6 in height, and 5 in width, designed for line/load terminations in engine generator panels and compatible with standard enclosure spaces in power generation applications.
With ratings of 32 kVA/26 kW at 240 Vac, 65 kVA/52 kW at 480 Vac, and 81 kVA/65 kW at 600 Vac, FG3090 supports a range of generator outputs, enabling design reuse across multiple projects and improving return on investment through standardized protection.