Eaton MPSC303WEAXX2S Magnum LV Circuit Breaker - UL Listed

Part Number: MPSC303WEAXX2S
MPSC303WEAXX2S
Manufacturer
Eaton
Part number
MPSC303WEAXX2S
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects electrical systems by interrupting fault currents in industrial power distribution. In demanding environments, designers often struggle with nuisance trips and lengthy maintenance downtimes. Key certifications include UL Listed, CE Marked, and NEMA Compliant, with CSA and DNV GL recognition enabling global deployment. Coupled with Power Xpert Release trip units, this breaker supports selective coordination and faster service, delivering measurable uptime and safer operation. Its drawout vertical mounting and standard frame simplify retrofits and panel integration, providing clear business value through reduced installation time and predictable protection.

Product Information

Extended Description

MPSC303WEAXX2S Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 3000 A, 100 kA, Three-pole, Drawout vertical mounting, PXR25 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC303WEAXX2S
UPC
786689633257
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
CE Marked SABA Listed NEMA Compliant CCC Marked
Certifications
ANSI UL Listed KEMA Certified Lloyd's Register Certified CSA Certified DNV GL Certified ABS Certified
Zone selective interlocking application paper Magnum circuit breakers with Power Xpert Release trip units product aid Selevctive coordination application paper - IA0120000E3 Magnum PXR and PD-SB double and double narrow frame UL Certificate of Compliance Magnum PXR and PD-SB double and double narrow frame UL Certificate of Compliance Microsoft Word - Power Xpert Protection Manager Quick Start Guide.docx Microsoft Word - Power Xpert Protection Manager Quick Start Guide.docx Microsoft Word - Power Xpert Protection Manager Quick Start Guide.docx Circuit Protection, Power Breakers, Contactors and Fuses, Volume 4, Tab 3 Power Xpert Protection Manager x64 22.6 1 Power Xpert Protection Manager x64 22.6 1 Eaton Specification Sheet - MPSC303WEAXX2S Eaton Specification Sheet - MPSC303WEAXX2S Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Molded case and low-voltage power circuit breaker health Molded case and low-voltage power circuit breaker health Molded case and low-voltage power circuit breaker health
Feature: Magnum PXR standard frame supports 3000 A with a 100 kA short-circuit rating. Business impact: This combination delivers robust protection for feeders and motors in demanding industrial environments, reducing fault-related downtime. Application: Ideal for main distribution panels, motor control centers, and feeder circuits in manufacturing facilities. Feature: PXR25 LSIGAM electronic trip unit provides adjustable protection curves and precise protection logic. Business impact: Improves selectivity and minimizes non-fault outages, supporting safer startup sequencing and energy management. Application: Critical processes and heavy equipment where uptime and coordinated protection are essential. Feature: Drawout vertical mounting offers easy replacement and safe testing. Business impact: Reduces maintenance time and exposure to live parts, lowering service costs. Application: Retrofit projects and high-density switchgear where quick fault isolation is required. Feature: Certifications and compliance set — UL Listed, ANSI, CE Marked, NEMA Compliant, plus CSA, DNV GL, KEMA, Lloyd’s Register, ABS. Business impact: Enables global deployment, supplier audits, and risk mitigation for regulated industries. Application: Global OEMs and multi-site manufacturers facing diverse regulatory landscapes. Feature: Dimensional footprint and weight — 14.6 in L (depth), 16.2 in W, 16.8 in H, 118 lb. Business impact: Predictable panel fit and space planning, accelerating design cycles. Application: New builds and retrofits in motor control centers and power distribution panels. Feature: Power Xpert Release compatibility and documentation support. Business impact: Streamlines commissioning, protection coordination, and ongoing maintenance with lifecycle software and guides. Application: System integrators and maintenance teams deploying smart protection strategies.

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FAQs

The MPSC303WEAXX2S uses a drawout vertical mounting on the standard Magnum frame, designed for three-pole configurations and large-capacity feeders. It supports safe hot-swapping in compatible panel layouts, enabling quicker maintenance without extended downtime. This makes it an ideal fit for motor control centers and main distribution panels where space is constrained but power protection must remain robust.
Key ratings include a 3000 A frame and 100 kA short-circuit current rating, with a PXR25 LSIGAM electronic trip unit providing adjustable protection and precise coordination. These attributes support reliable interruption during faults and selective tripping with downstream devices, suitable for high-demand industrial feeders and motors across global facilities.
Yes. The combination of the Magnum frame with the PXR25 LSIGAM trip unit and Power Xpert Release options enables selective coordination strategies. This minimizes downstream fault impacts, reduces energy loss during faults, and improves service continuity in motor control centers and complex distribution schemes.
This unit carries ANSI UL Listed, as well as CE Marked and multiple third-party certifications (KEMA, Lloyd's Register, CSA, DNV GL, ABS). These credentials support deployments in North America, Europe, and other regulated regions, simplifying supplier qualification and customer audits for multinational manufacturers.
Maintenance benefits include easier replacement thanks to drawout mounting and longer service life due to robust construction and advanced trip logic. ROI is driven by reduced downtime, faster fault isolation, and compatibility with Power Xpert Protection Manager for proactive monitoring and commissioning, ultimately lowering total cost of ownership in high-demand facilities.