Eaton MPSC404WEAXX2A Magnum LV Circuit Breaker - UL Listed, CE Marked

Part Number: MPSC404WEAXX2A
MPSC404WEAXX2A
Manufacturer
Eaton
Part number
MPSC404WEAXX2A
Category

Quick Summary

The Eaton MPSC404WEAXX2A Magnum LV circuit breaker provides reliable, high-capacity protection for industrial power distribution panels. Nuisance trips and downtime erode productivity and inflate maintenance costs, especially in complex automation lines. UL Listed and CE Marked provide regulatory confidence, while CSA certification and Lloyd's Register support global deployment. Coupled with a Power Xpert Release PXR20 trip unit and a four-pole drawout design, it enables coordinated protection and straightforward servicing. This combination supports scalable protection strategies from small to large panels, improving uptime and simplifying commissioning. With industry-standard dimensions and compatibility with Magnum accessories, it fits a wide range of OEM enclosures and retrofit projects.

Product Information

Extended Description

MPSC404WEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NNABCABC), 100 kA, Four-pole, Drawout vertical mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC404WEAXX2A
UPC
786689633653
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CCC Marked NEMA Compliant CE Marked SABA Listed
Certifications
CSA Certified ANSI Lloyd's Register Certified UL Listed 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 - MPSC404WEAXX2A Eaton Specification Sheet - MPSC404WEAXX2A 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: High current capacity and four-pole design. Business Impact: Delivers reliable protection for large distribution networks with a 4000 A rating and 100 kA short-circuit capability, enabling robust fault handling without compromising selectivity. Application: Suitable for complex manufacturing lines and large motor feeders where high interrupting capacity is essential. Feature: PXR20 LSI trip unit integration. Business Impact: Provides advanced protection coordination and precise fault sensing, reducing nuisance trips and accelerating fault isolation. Application: Ideal for retrofits and new builds leveraging Power Xpert Protection Manager for centralized monitoring. Feature: Drawout vertical mounting. Business Impact: Eases maintenance and replacement, minimizing downtime and human error during servicing. Application: Useful in cabinets with limited access or tight installation envelopes. Feature: Broad certifications and compliances. Business Impact: Supports global procurement and regulatory compliance (UL Listed, CE Marked, CSA Certified, NEMA/CARB/ISO compatible) across multiple regions. Application: Critical for multinational projects and OEMs that require consistent documentation. Feature: Magnum compatibility and ecosystem readiness. Business Impact: Simplifies installation with existing Magnum accessories and enables seamless integration with Protection Manager for coordinated protection strategies. Application: New installations and upgrades in industrial facilities seeking scalable protection architectures.

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FAQs

The MPSC404WEAXX2A uses a four-pole drawout vertical mounting design, which simplifies alignment and replacement in compatible Eaton panelboards. Ensure adequate clearance for the drawout mechanism, confirm panel cavity depth (approx. 16.3 in), and verify connector interfaces match the cataloged unit. Coordination with adjacent protection devices is recommended to maintain selective coordination.
This breaker carries UL Listed and CE Marked certifications, along with CSA Certification and Lloyd's Register endorsement. These credentials support global compliance, assist with supplier qualification, and reduce risk in regulated environments where standardization and traceability are required.
Yes. The device is specified for a 4000 A service with a 100 kA short-circuit rating (NNABCABC) and four-pole construction, making it suitable for high-demand industrial feeders and large motor applications where high fault currents may occur.
The PXR20 LSI trip unit offers advanced protection logic, enhanced coordination, and reliable fault sensing, reducing nuisance trips and enabling faster fault clearance. It also facilitates integration with Eaton’s Power Xpert Protection Manager for centralized configuration and monitoring.
Eaton provides Magnum renewal parts and comprehensive manuals, including application notes and product guides. Useful resources are the Magnum renewal parts document, product datasheets, and installation/user manuals linked in Eaton’s downloads section for this model.