Eaton FG3110 Engine Generator MCCB - UL 489/CSA IEC Rated
Part Number: FG3110
Quick Summary
FG3110 is Eaton's complete engine generator molded case circuit breaker with fixed thermal and magnetic trips for engine-driven power systems. Engineers often struggle with protection miscoordination and nuisance trips that disrupt uptime and raise service costs. This unit is CSA Listed, UL 489 Listed, and IEC rated to meet global safety and reliability standards for critical facilities. Rated at 110 A and 600 Vac with three poles, it supports generators at 60 Hz and provides reliable short-circuit protection at both 240 Vac and 480 Vac levels. With line/load terminals and a compact FG frame, FG3110 simplifies installation, reduces maintenance intervals, and strengthens compliance across industrial power systems.
Product Information
Extended Description
FG3110 Eaton: Eaton Series C complete EG molded case circuit breaker, F-frame, FG, Fixed thermal and magnetic trips, Three-pole, 110A, 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
FG3110
UPC
786679269763
Product Length/Depth
7 in
Product Height
5 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 Certified IEC 947-2 UL 489 CSA Std. C22.2 No. 5 UL Listed IEC Rated
Amperage Rating
110 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
14 kAIC at 480 Vac 18 kAIC at 240 Vac
Generator rating
40 kVA/32 kW at 240V, 79 kVA/64 kW at 480V, 99 kVA/79 kW at 600V
Number of poles
Three-pole
Functions
Reverse
Engine generator circuit breakers catalog
Circuit Breakers Explained
Eaton Specification Sheet - FG3110
Fixed pickup and fixed T186 trip type provide predictable protection that minimizes nuisance tripping during startups. This translates to fewer production interruptions and simpler protection design for engine-generator panels. High interrupt ratings of 18 kAIC at 240 Vac and 14 kAIC at 480 Vac deliver robust fault handling and reduced fault energy, safeguarding wiring and connected equipment in 600 Vac systems. The three-pole FG frame complete breaker with line/load terminals enables straightforward wiring and field installation, speeding panel assembly and reducing commissioning risk. Certifications to CSA, UL, and IEC standards support compliance in diverse facilities, lowering procurement risk and easing regulatory audits. Generator rating compatibility—40 kVA/32 kW at 240 V, 79 kVA/64 kW at 480 V, and 99 kVA/79 kW at 600 V—helps engineers select the correct protection for standby and prime power applications. A one-year warranty (or 18 months from shipment) provides project risk mitigation and assurance for long-term service stability.
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FAQs
FG3110 is a three-pole molded case breaker with line and load terminals designed for engine-generator panel layouts. It fits standard FG frame enclosures and provides a fixed pickup, simplifying wiring diagrams. When planning panels, ensure adequate clearance for the 7 in x 5 in x 5 in footprint and verify 60 Hz operation to match generator frequency. This minimizes miswiring and ensures reliable protection coordination with the generator set.
FG3110 supports generator ratings of 40 kVA/32 kW at 240 V, 79 kVA/64 kW at 480 V, and 99 kVA/79 kW at 600 V. Choose the breaker rating to align with the largest continuous load and start-up surge of the genset while maintaining acceptable short-circuit protection. Use the 110 A, 600 Vac basis as a reference for system-wide protection coordination and conductor sizing.
FG3110 carries CSA Certified, UL Listed, and IEC Rated markings. These certifications confirm safety compliance across North American and international standards, reducing procurement risk in regulated industries and enabling easier acceptance by inspectors, insurers, and EPCs during project commissioning.
The T186 trip type refers to a fixed-time magnetic trip characteristic used on this model, ensuring a predictable response under short-circuit conditions. This supports reliable protection coordination with generator protections, minimizes miscoordination risks during fault events, and helps maintain stable power delivery across critical loads.
FG3110 is covered by Eaton Selling Policy 25-000, offering a one-year warranty from the date of installation or eighteen months from shipment, whichever occurs first. This provides protection against manufacturing defects and supports maintenance planning, with access to Eaton’s service network for replacements and technical support.