Eaton FG3100WD05Z04 Molded Case Circuit Breaker - IEC 947-2
Part Number: FG3100WD05Z04
Quick Summary
Eaton FG3100WD05Z04 molded case circuit breaker provides reliable overcurrent protection for engine-generator applications. In demanding industrial environments, nuisance trips and downtime can erode productivity; this device delivers fast, predictable tripping and robust protection to keep critical power systems running. It carries UL 489, CSA Std. C22.2 No. 5, and IEC 947-2 certifications, ensuring compliance across North American and international markets. With metric mounting and line-side end caps, it offers installation flexibility for compact generator panels. Rated at 100 A at 600 Vac and scalable to generator ratings up to 90 kVA, it supports reliable protection for OEMs and service teams while reducing lifecycle costs.
Product Information
Extended Description
FG3100WD05Z04 Eaton: Eaton Series C complete EG molded case circuit breaker, F-frame, FG, Fixed thermal and magnetic trips, Three-pole, 100A, 600 Vac, 18 kAIC at 240 Vac, 14 kAIC at 480 Vac, Line side end cap, optional load side, Metric, Reverse, 60 Hz, KPR1AM
Product Name
Eaton complete engine generator molded case circuit breaker
Catalog Number
FG3100WD05Z04
UPC
786685465463
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
UL 489 CSA Std. C22.2 No. 5 IEC 947-2
Amperage Rating
100 A
Voltage rating
600 Vac
Trip Type
T186
Circuit breaker type
FG
Circuit breaker frame type
Complete breaker
Terminals
Line side end cap, optional load side
Frame
F
Frequency rating
60 Hz
Class
Engine generator
Line
KPR1AM
Mounting hardware
Metric
Pickup
Fixed
Prod load
3T100FB
Interrupt rating
14 kAIC at 480 Vac 18 kAIC at 240 Vac
Generator rating
36 kVA/29 kW at 240 Vac, 72 kVA/58 kW at 480 Vac, 90 kVA/72 kW at 600 Vac
Number of poles
Three-pole
Functions
Reverse
Engine generator circuit breakers catalog
Circuit Breakers Explained
Eaton Specification Sheet - FG3100WD05Z04
Implementation of arc flash mitigating solutions at industrial manufacturing facilities
Feature: Complete engine-generator molded case breaker with FG frame and three-pole construction. Business Impact: Delivers compact, standardized protection that simplifies panel layouts and reduces spare parts needs in genset assemblies. Application: Ideal for engine-generator sets and standby power systems where space is at a premium and reliable disconnection is required. Feature: Fixed thermal and magnetic trips (T186) provide precise coordination. Business Impact: Minimized nuisance trips and reduced risk of equipment damage from overloads. Application: Critical motor and generator protection in industrial control panels. Feature: High interrupt ratings—14 kAIC at 480 Vac and 18 kAIC at 240 Vac. Business Impact: Withstands fault currents typical in heavy industry, enhancing safety and uptime. Application: Main distribution and generator control panels in facilities with high fault-current potential. Feature: Line side end cap, optional load side and metric mounting; 60 Hz operation; generator rating up to 90 kVA. Business Impact: Flexible integration across diverse genset configurations, enabling faster installation and reduced custom engineering. Application: OEM panel builds and serviceable standby power systems. Feature: Certifications and warranty—UL 489, CSA C22.2 No. 5, IEC 947-2; Eaton 25-000 policy. Business Impact: Regulatory compliance, reliable support, and predictable maintenance budgeting. Application: Procurement decisions for reliable power protection in generator-driven infrastructure.
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FAQs
FG3100WD05Z04 is a three-pole breaker with a 600 Vac rating and 100 A capacity that uses metric mounting and line-side end caps. For compatibility, ensure your enclosure supports FG frame devices, verify proper torque for mounting hardware, and align wiring to the line-side terminals. The device is designed to integrate with engine-generator control panels and can simplify panel layouts while preserving clear fault isolation.
The FG3100WD05Z04 provides an interrupt rating of 14 kAIC at 480 Vac and 18 kAIC at 240 Vac. This capability supports high fault-current environments found in industrial power systems, helping to protect generators and feeders while reducing the risk of equipment damage during short circuits.
Yes. The FG3100WD05Z04 carries UL 489 certification, CSA Std. C22.2 No. 5, and IEC 947-2, ensuring compliance across North American and international markets. These certifications support safe operation in generator control panels and align with common industry requirements for electrical protection devices.
Eaton provides a warranty under policy 25-000: one year from the date of installation or eighteen months from the date of shipment, whichever occurs first. This warranty covers manufacturing defects and supports service planning, replacements, and ongoing reliability for generator protection panels.
The unit supports generator ratings of 36 kVA/29 kW at 240 Vac, 72 kVA/58 kW at 480 Vac, and 90 kVA/72 kW at 600 Vac. It is best applied in engine-generator sets, standby power systems, and industrial panels requiring robust overcurrent protection with compact form factor and reliable trip performance.