Eaton KG3300WD05X02 Engine Generator MCCB - CSA/UL Listed
Part Number: KG3300WD05X02
Quick Summary
Eaton KG3300WD05X02 Engine Generator MCCB protects generator power systems in industrial facilities. This breaker design addresses the common challenge of matching generator ratings, trip curves, and mounting constraints without compromising safety. It carries CSA Std. C22.2 No. 5, IEC 947-2, and UL Listed certifications, supporting smooth compliance and easier audits. With fixed thermal and magnetic trips and a 60 Hz operating profile, it suits generator sets and critical power applications. The KG frame, line-side end cap options, and metric mounting hardware streamline installation while delivering reliable protection. For engineers and procurement teams, this device delivers consistent performance, simplifies specification, and reduces risk across generator-driven power rails.
Product Information
Extended Description
KG3300WD05X02 Eaton: Eaton Series C complete EG molded case circuit breaker, K-frame, KG, Fixed thermal and magnetic trips, 500-1000A, Three-pole, 300A, 600 Vac, 18 kAIC at 240 Vac, 14 kAIC at 480 Vac, Line side end cap, optional load side, Reverse feed, 60 Hz
Product Name
Eaton complete engine generator molded case circuit breaker
Catalog Number
KG3300WD05X02
UPC
786685465623
Product Length/Depth
12.5 in
Product Height
6 in
Product Width
7 in
Product Weight
10 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
MIL-DTL-17361
Certifications
CSA Std. C22.2 No. 5 IEC 947-2 UL Listed file E7819 UL 489 QPL17361
Type
Complete breaker
Amperage Rating
300 A
Voltage rating
600 Vac
Trip Type
T186
Circuit breaker type
KG
Circuit breaker frame type
Complete breaker
Terminals
Line side end cap, optional load side
Frame
K
Frequency rating
60 Hz
Class
Engine generator
Mounting hardware
Metric
Prod load
TA350K
Interrupt rating
18 kAIC at 240 Vac 14 kAIC at 480 Vac
Number of poles
Three-pole
Trip rating
500-1000 A
Functions
Reverse
Engine generator circuit breakers catalog
Circuit Breakers Explained
Eaton Specification Sheet - KG3300WD05X02
Feature: Amperage rating of 300 A with a 600 Vac rating. Business Impact: Provides precise protection for high-load generator circuits, reducing the risk of nuisance trips and equipment damage. Application: Engine generator sets and industrial power layouts that demand robust short-circuit protection. The measurable outcome is improved uptime and protected downstream equipment. Feature: Trip Type T186 with fixed thermal and magnetic trips. Business Impact: Fast, predictable fault isolation to minimize downtime and collateral damage during faults. Application: Critical load banks and generator mains where selective coordination is essential for safe maintenance. Feature: Interrupt ratings of 18 kAIC at 240 Vac and 14 kAIC at 480 Vac. Business Impact: Enhanced fault handling for a wide voltage spectrum, supporting resilient power distribution. Application: Medium-size generator feeds and industrial machinery with varying voltage requirements. Feature: Frame K with three poles and 60 Hz operation. Business Impact: Optimized mechanical fit for EG sets, easier integration into standard K-frame cubicles, and reliable performance in typical plant frequencies. Application: Engine-driven power systems requiring a compact yet capable protection solution. Feature: Terminals include line-side end cap with optional load side. Business Impact: Flexible wiring configurations, simplified field installation, and safer fault isolation. Application: Generator packages that require configurable protection boundaries and reverse-feed capability. Feature: Mounting hardware specified as Metric. Business Impact: Faster on-site installation with industry-standard hardware, reducing labor time and variance in assembly. Application: New installations and retrofit projects in facilities using metric hardware standards. Feature: Certifications and compliance alignment (CSA, UL, IEC). Business Impact: Streamlined regulatory approvals, minimized supplier audits, and clearer procurement criteria. Application: Facilities governed by strict electrical codes and industrial safety standards.
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FAQs
Yes. The KG3300WD05X02 uses a K-frame, three-pole design with metric mounting hardware, line side end cap terminals, and is intended to fit typical engine-generator sets. Confirm mounting hole spacing and terminal arrangements against the EG frame to ensure straightforward integration and consistent protection.
The device provides a 300 A amperage rating with a 600 Vac voltage rating. It features a fixed thermal and magnetic trip with a T186 trip type, and interrupt ratings of 18 kAIC at 240 Vac and 14 kAIC at 480 Vac, enabling effective fault isolation across common generator voltages.
Ideal for engine generator sets and generator-powered industrial applications, including manufacturing lines and data-center backup systems. Its 60 Hz compatibility and three-pole KG frame support reliable protection of motor loads, control panels, and main power feeds in environments requiring robust short-circuit protection.
It carries CSA Std. C22.2 No. 5, IEC 947-2, and UL Listed certification (file E7819), along with MIL-DTL-17361 compliance. These certifications simplify regulatory approvals, audits, and ensure cross-border acceptance for industrial projects.
Expect a standard one-year warranty from installation or 18 months from shipment, whichever occurs first. Regular inspection of terminal torque, cleaning of dust ingress, and periodic trip testing per maintenance schedules will help sustain reliability and minimize unplanned downtime in generator systems.