Eaton FG3150WD05Z05 Molded Case Breaker - 18 kAIC
Part Number: FG3150WD05Z05
Quick Summary
Eaton FG3150WD05Z05 Molded Case Breaker protects electrical systems in engine-generator applications. This device provides reliable live protection while minimizing nuisance trips in demanding industrial environments. Engineers often face downtime from overcurrent events, complex maintenance, and difficult field installation. This breaker’s fixed thermal and magnetic trips deliver predictable response, with a three-pole, 150 A configuration that suits generator sets up to 600 Vac. It carries IEC 947-2, UL 489, and CSA C22.2 No. 5 certifications, supporting global compliance. The design emphasizes quick integration with line side end caps and optional load side accessories, simplifying panel retrofits. With a 60 Hz rating and a clearly defined pickup characteristic, it helps facilities reduce unplanned outages and optimize maintenance scheduling while supporting scalable energy protection.
Product Information
Extended Description
FG3150WD05Z05 Eaton: Eaton Series C complete EG molded case circuit breaker, F-frame, FG, Fixed thermal and magnetic trips, Three-pole, 150A, 600 Vac, 18 kAIC at 240 Vac, 14 kAIC at 480 Vac, Line side end cap, optional load side, Reverse, 60 Hz, KPR1AM
Product Name
Eaton complete engine generator molded case circuit breaker
Catalog Number
FG3150WD05Z05
UPC
786685465500
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
IEC 947-2 UL 489 CSA Std. C22.2 No. 5
Amperage Rating
150 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
Pickup
Fixed
Prod load
3TA225FD
Interrupt rating
18 kAIC at 240 Vac 14 kAIC at 480 Vac
Generator rating
54 kVa/43 kW at 240V, 108 kVA/87 kW at 480V, 135 kVA/108 kW at 600V
Number of poles
Three-pole
Functions
Reverse
Engine generator circuit breakers catalog
Circuit Breakers Explained
Eaton Specification Sheet - FG3150WD05Z05
Implementation of arc flash mitigating solutions at industrial manufacturing facilities
Feature: 150 A at 600 Vac with fixed thermal and magnetic trips. Business Impact: Precise protection reduces nuisance trips and protects generator windings, transformers, and connected loads, improving equipment life and uptime. Application: Engine-generator sets and three-phase switchgear in manufacturing and data-center environments. Feature: Three-pole F-frame FG model with fixed pickup. Business Impact: Simplified wiring and consistent trip behavior across phases, enabling faster commissioning and easier fault isolation. Application: OEM generator skids and field retrofits in heavy industry. Feature: 18 kAIC at 240 Vac / 14 kAIC at 480 Vac interrupt ratings. Business Impact: High short-circuit withstand capability improves system safety margins and reduces upstream protection coordination concerns. Application: Heavy machinery, process lines, and large motor drives. Feature: Line side end cap with optional load side terminals. Business Impact: Flexible installation and retrofit options minimize enclosure changes and reduce installation time. Application: Retrofit projects and new builds in industrial facilities. Feature: 60 Hz operation and generator-rated performance. Business Impact: Ensures consistent protection for generator sets and aligns with standard industrial power systems. Application: Utilities, facilities engineering, and plant maintenance teams. Feature: Certifications IEC 947-2, UL 489, CSA C22.2 No. 5. Business Impact: Global compliance lowers project risk and simplifies cross-border procurement. Application: Global rollouts and multi-site installations. Insight: The FG3150WD05Z05 aligns with industry best practices for engine-generator protection, delivering reliability, easier maintenance planning, and scalable protection for growing facilities.
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FAQs
FG3150WD05Z05 is designed for three-pole engine-generator panels and supports line side end caps with optional load side terminals. Its fixed pickup and 60 Hz operation simplify alignment with standard generator panels, reducing field wiring time and enabling quicker retrofits in manufacturing and utility facilities.
The breaker is rated for 150 A at 600 Vac with fixed thermal and magnetic trips. It provides 18 kAIC at 240 Vac and 14 kAIC at 480 Vac, in a three-pole, FG-frame format. Frequency rating is 60 Hz, with line designation KPR1AM and a fixed pickup characteristic for predictable protection.
Yes. With a generator rating up to 54 kVa/43 kW at 240 V (and higher at other voltages), a three-pole configuration, and strong interrupt ratings, this breaker provides reliable engine-generator protection, supports scalable protection needs, and helps minimize unplanned downtime in process-heavy environments.
It carries IEC 947-2, UL 489, and CSA C22.2 No. 5 certifications. These standards ensure compatibility with international electrical codes, streamline global procurement, and reduce risk during audits while supporting safe operation in diverse facilities.
The robust fixed-trip design reduces nuisance trips and wear, lowering maintenance cycles. Quick installation with standard end caps and optional load-side accessories minimizes downtime, while its long-term reliability and certifications help reduce warranty and service costs across multi-site deployments.