Eaton MPSC404WEAXX2C Magnum LV Circuit Breaker - Four-pole
Part Number: MPSC404WEAXX2C
Quick Summary
The Eaton MPSC404WEAXX2C Magnum LV Circuit Breaker provides robust overcurrent protection for industrial power distribution. Engineers often struggle with coordinating protection schemes and minimizing downtime during commissioning. This unit features a PXR20 LSIG trip unit and a drawout vertical mounting design to streamline testing, maintenance, and swapouts, while delivering reliable protection. It carries UL Listed and CE Marked certifications, with additional approvals such as CSA and ANSI to cover North American and international projects. By aligning with Eaton’s protection ecosystem, it helps shorten project timelines, improve reliability, and reduce total cost of ownership through proven safety and compliance, making it a strategic choice for modern electrical protection schemes.
Product Information
Extended Description
MPSC404WEAXX2C Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NNABCABC), 100 kA, Four-pole, Drawout vertical mounting, PXR20 LSIG trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC404WEAXX2C
UPC
786689633660
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CCC Marked SABA Listed CE Marked NEMA Compliant
Certifications
Lloyd's Register Certified ANSI UL Listed CSA Certified KEMA 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 - MPSC404WEAXX2C
Eaton Specification Sheet - MPSC404WEAXX2C
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 → Business Impact → Application: The Magnum PXR trip unit enables precise protection coordination, reducing nuisance tripping and improving uptime across critical lines. This translates to lower maintenance costs and fewer production interruptions in manufacturing and process facilities. Feature → Drawout vertical mounting simplifies field swaps and complete panel retrofits, accelerating commissioning and serviceability in data centers and large switchgear rooms. Feature → Four-pole, double standard frame design supports scalable protection for multi-pole circuits, enabling seamless expansion as plant capacity grows while preserving space efficiency in large control panels. Feature → 4000 A interrupting rating with 100 kA short-circuit withstand capacity provides robust fault handling for demanding loads, improving system reliability and safety. Feature → Broad certification coverage (UL Listed, CE Marked, CSA Certified, ANSI) ensures regulatory compliance across regions, reducing project risk and accelerating approval cycles. Feature → Compatibility with Power Xpert Protection Manager and related Eaton ecosystem tools enables integrated monitoring, diagnostics, and maintenance planning for reduced downtime and better ROI.
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FAQs
The MPSC404WEAXX2C uses a drawout vertical mounting on a Magnum frame and is compatible with double standard frame configurations. This enables straightforward installation in new or retrofit panels and simplifies field swaps without compromising security or alignment with adjacent devices.
Key specs include a 4000 A interrupting rating, 100 kA short-circuit withstand rating, four-pole construction, and a PXR20 LSIG trip unit. Dimensions are 16.3 in length, 16.8 in height, and 44.1 in width, with a unit weight of 319 lb. These specs support high-capacity protection for critical loads.
Ideal for industrial power distribution, process plants, manufacturing lines, and data centers requiring robust protection and reliable coordination. Its four-pole, drawout design suits main distribution panels and large control centers where downtime is costly and safety compliance is essential.
This breaker is UL Listed and CE Marked, with additional approvals including CSA Certified and ANSI standards. It also carries Lloyd's Register certification and other industry verifications, supporting regulatory compliance across regions and helping with fast approvals.
Integration with Power Xpert Protection Manager enables proactive diagnostics and easier maintenance planning. The durable Magnum design reduces replacement frequency, while coordinated protection minimizes downtime, delivering a lower total cost of ownership over the equipment’s life cycle.