Eaton LG3450WS03Z01 Engine Generator MCCB - UL Listed
Part Number: LG3450WS03Z01
Quick Summary
LG3450WS03Z01 Engine Generator molded case circuit breaker is designed to protect engine-generator power trains in industrial systems up to 600 V. It provides reliable overcurrent protection with fixed thermal and magnetic trips on a three-pole, 450 A device, helping reduce nuisance trips and equipment damage. UL Listed certification supports safety compliance in demanding environments, while the Series C, L-frame configuration enables compact integration with optional line/load terminals and a shunt trip for remote shutdown. For OEMs and end users, this MCCB offers straightforward installation, flexible integration, and a clear path to lower lifecycle costs in manufacturing, utilities, and data-center applications.
Product Information
Extended Description
LG3450WS03Z01 Eaton: Eaton Series C complete EG molded case circuit breaker, L-frame, Fixed thermal and magnetic trips, 500-2500A, Three-pole, 450A, 600 Vac, No term., optional Line/load, Engine gen., 12-24 Vac/dc opposite side w/ left pigtail, Reverse feed
Product Name
Eaton complete engine generator molded case circuit breaker
Catalog Number
LG3450WS03Z01
UPC
782116469390
Product Length/Depth
5.48 in
Product Height
5.48 in
Product Width
5.48 in
Product Weight
16 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 Listed
Amperage Rating
450 A
Voltage rating
600 Vac
Trip Type
T186
Circuit breaker frame type
Complete breaker
Magnetic trip range
500-2500A
Series
Series C
Shunt trip
12-24 Vac/dc left pigtail opposite
Terminals
Without terminals, optional line and load
Frame
L
Class
Engine generator
Generator rating
162 kVA/130 kW at 240 Vac, 325 kVA/260 kW at 480 Vac, 406 kVA/325 kW at 600 Vac
Number of poles
Three-pole
Trip rating
500-2500 A
Functions
Reverse
Engine generator circuit breakers catalog
Circuit Breakers Explained
Eaton Specification Sheet - LG3450WS03Z01
Feature: Fixed thermal and magnetic trips on a three-pole, 450 A unit. Business impact: Delivers precise protection against overcurrent events, reducing the risk of generator damage and unplanned downtime. Application: Ideal for engine-generator panels in 600 Vac power systems where reliable protection is essential. Feature: L-frame, Series C complete engine generator molded case breaker with compact dimensions. Business impact: Saves panel space, eases retrofit, and simplifies installation in tight electrical enclosures. Application: Panel boards and control cabinets in industrial facilities. Feature: Shunt trip option with 12-24 Vac/dc left pigtail and reverse feed capability. Business impact: Enables remote shutdown and enhanced safety, improving response times during faults. Application: Critical power feeds and remote engine-generator control schemes. Feature: Terminals configurable as line/load (or without terminals). Business impact: Provides installation flexibility and procurement efficiency, reducing time to deploy. Application: Retrofit projects and new builds with varying termination needs. Feature: Generator rating up to 162 kVA/130 kW at 240 Vac, 325 kVA/260 kW at 480 Vac, 406 kVA/325 kW at 600 Vac. Business impact: Ensures proper sizing for engine-generator sets, minimizing oversizing or undersizing risks. Application: Engine-generator sets in industrial plants and data centers. Feature: UL Listed certification and standard warranty. Business impact: Demonstrates regulatory compliance and supports risk mitigation with manufacturer-backed coverage. Application: Any installation requiring formal safety certification and reliable after-sales support.
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FAQs
Installation requires coordinating the L-frame housing with the panel dimensions and available line/load terminals. The unit supports optional line/load connections and a left-side shunt trip, enabling straightforward wiring in standard engine-generator control panels. Ensure proper torque on connections and observe 600 Vac ratings to prevent insulation stress and arcing during operation.
This device is a three-pole breaker rated for 450 A at 600 Vac with fixed thermal and magnetic trips. It features a trip range of 500-2500 A (magnetic) and uses TRIP Type T186. The combination provides robust short-circuit and overload protection for engine-generator systems, reducing the risk of generator damage and unplanned outages.
Yes. The LG3450WS03Z01 includes a 12-24 Vac/dc shunt trip with a left pigtail option and supports reverse feed configurations. This enables remote shutdown and enhanced safety in automated or monitored power systems, aligning with modern engine-generator control strategies and critical-load protection.
The LG3450WS03Z01 is UL Listed, which confirms adherence to recognized safety standards for electrical protection devices. The product is backed by Eaton’s warranty policy, and its certification supports compliance in industrial, utility, and data-center applications that require formal safety approvals and reliable performance.
Deploying this MCCB can reduce downtime through dependable overcurrent protection and remote shutdown capabilities, improving plant reliability. Its compact L-frame design simplifies installation, while the flexible line/load options and rated generator outputs help optimize equipment sizing, potentially lowering capital expenditure and maintenance costs over the asset’s life.