Eaton LW4315 Molded Case Circuit Breaker - IEC Rated
Part Number: LW4315
Quick Summary
LW4315 is an Eaton molded case circuit breaker designed to protect industrial power distribution and machinery in panels and control gear. It helps prevent outages by quickly interrupting fault currents, reducing downtime and maintenance costs. This four-pole, L-frame device uses an interchangeable thermal-magnetic trip (T207) for precise coordination across voltages. It is IEC Rated, supporting global safety compliance, and features line and load terminals for straightforward installation. With a 315 A rating, 690 Vac / 250 Vdc capabilities, and a 45 kAIC interrupt rating at 415 Vac, this complete breaker supports robust protection in demanding environments. A world-class design enhances procurement consistency and serviceability for industrial plants.
Product Information
Extended Description
LW4315 Eaton: Eaton Series C complete molded case circuit breaker, L-frame, LW, Complete breaker, Interchangeable thermal-magnetic trip type, Four-pole, 315A, 690 Vac, 250 Vdc, 45 kAIC at 415 Vac, Line and load, World
Product Name
Eaton Series C complete molded case circuit breaker
Catalog Number
LW4315
UPC
782116630936
Product Length/Depth
10.75 in
Product Height
11 in
Product Width
10.75 in
Product Weight
0.01 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 Rated
Amperage Rating
315A
Voltage rating
690 Vac, 250 Vdc
Trip Type
T207
Circuit breaker type
LW
Circuit breaker frame type
Complete breaker
Terminals
Line and load
Frame
L
Class
World
Interrupt rating
45 kAIC at 415 Vac
Number of poles
Four-pole
Application of Multi-Wire Terminals for Molded Case Circuit Breakers
Application of Multi-Wire Terminals for Molded Case Circuit Breakers
Application of Multi-Wire Terminals for Molded Case Circuit Breakers
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Breaker service centers
Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2
Circuit breakers explained
Circuit breakers explained
Eaton Specification Sheet - LW4315
Eaton Specification Sheet - LW4315
Eaton Specification Sheet - LW4315
Eaton Specification Sheet - LW4315
Eaton Specification Sheet - LW4315
Feature: Interchangeable thermal-magnetic trip (T207) enables precise protection coordination across multiple feeders. Business Impact: Reduces spare-part inventory and enables faster fault isolation, lowering unplanned downtime. Application: Ideal for panels with mixed loads and motor control centers where coordinated tripping improves safety and reliability. Feature: Four-pole, LW-series frame and complete breaker construction. Business Impact: Simplifies installation and replacement with a single, durable unit that handles multi-wire protection. Application: Suitable for main feeders and distribution panels in heavy-duty industrial environments. Feature: Line and load terminals with a robust L-frame design. Business Impact: Streamlines wiring, reduces field wiring errors, and supports safe commissioning. Application: Common in new builds and retrofits where clean integration with existing bus ducts and bus bars is required. Feature: High interrupt rating of 45 kAIC at 415 Vac and voltage ratings of 690 Vac / 250 Vdc. Business Impact: Ensures fast, controlled interruption of high-energy faults, improving safety margins and compliance. Application: Critical for motors, pumps, and conveyors with potential surge events. Feature: IEC Rated with World-class frame characteristics. Business Impact: Supports global use and consistent performance across international facilities, simplifying vendor management and procurement. Application: Export-ready protection for multinational plants and standardized electrical cabinets.
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FAQs
Yes. LW4315 is designed as a complete molded case circuit breaker in Eaton's Series C family with an L-frame, four-pole configuration and line/load terminals. Its compatibility with standard Series C panels simplifies retrofits and new installations, reducing panel modification needs. Always consult the Eaton specification sheet for exact mounting, torque values, and wiring guidance to ensure proper coordination with adjacent protective devices.
LW4315 is rated for 315 A, with voltage ratings of 690 Vac and 250 Vdc. It provides a 45 kAIC interrupt rating at 415 Vac and uses a T207 trip type for precise overcurrent protection. This combination supports protection of heavy-duty feeders, motors, and multi-wire circuits while maintaining safe interruption under fault conditions in demanding industrial settings.
The LW4315 is well-suited for industrial power distribution panels, machine protection in manufacturing lines, and motor control centers requiring reliable multi-wire protection. Its four-pole design, high interrupt rating, and IEC Rated certification make it a strong fit for sectors such as packaging, material handling, and process automation where uptime and safety are critical.
LW4315 carries IEC Rated certification, signaling compliance with global electrical safety standards. This alignment supports international projects and facilities that require certified protection devices. For additional documentation on performance curves and testing, refer to Eaton's specification sheets and time-current curve publications available in the downloads section.
By using a complete molded case breaker with a standardized three-plate protective design and a single model number (LW4315) for high-current, multi-voltage protection, maintenance planners can simplify spare parts stocking. The interchangeable trip and robust build reduce field service time, while IEC compliance helps minimize regulatory risk across global sites, delivering lower total cost of ownership over the equipment lifecycle.