Eaton MPS8403WEAXX2H Magnum PXR - UL Listed

MPS8403WEAXX2H
Manufacturer
Eaton
Part number
MPS8403WEAXX2H
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker protects large electrical loads in industrial plants. It uses the Magnum PXR system with a double standard frame and a three-pole, drawout vertical mounting design to fit retrofit projects and new builds alike. This device helps prevent unplanned downtime by enabling precise selective protection and rapid fault isolation, reducing arcing energy and downstream damage. With UL Listed, CE Marked, and NEMA compliance, plus KEMA and CSA certifications, it meets global safety and performance standards across diverse markets. For system integrators and OEMs, the Magnum PXR brings reliable protection, scalable ratings, and easier maintenance. The combination of 4000 A Iu and an 85 kAIC interrupt rating supports demanding production lines while enabling efficient panel design and installation.

Product Information

Extended Description

MPS8403WEAXX2H Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (ABCABC), 85 kA, Three-pole, Drawout vertical mounting, PXR20 LSIAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8403WEAXX2H
UPC
786689628710
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
NEMA Compliant CCC Marked CE Marked SABA Listed
Certifications
KEMA Certified UL Listed Lloyd's Register Certified CSA Certified ANSI DNV GL Certified ABS Certified
Frame
Double standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Trip Type
PXR20 LSI ARMS
Number of poles
Three-pole
Rated uninterrupted current (Iu)
4000 A
Interrupt rating
85 kAIC
Interrupt rating
85 kAIC
Rated uninterrupted current (Iu)
4000 A
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 - MPS8403WEAXX2H Eaton Specification Sheet - MPS8403WEAXX2H Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Cyber security white paper Cyber security white paper Cyber security white paper
Feature → Business Impact → Application: The device delivers a 4000 A rated uninterrupted current (Iu) and an 85 kAIC interrupt rating, providing robust protection for heavy industrial loads and minimizing system-wide outages during faults. This translates to reduced downtime, lower arc energy exposure, and safer startup/shutdown sequences in expansive power distribution schemes. Application: large manufacturing lines, data centers, and process facilities where high fault withstand and reliability are essential. Feature → Business Impact → Application: The PXR20 LSI ARMS trip unit in Magnum PXR enables advanced protection coordination and selective tripping, limiting disturbances to the smallest impacted section of a system. This improves overall equipment availability and simplifies maintenance planning. Application: complex switchgear assemblies and multi-zone protections in continuous-process environments. Feature → Business Impact → Application: Drawout vertical mounting with a double standard frame simplifies installation, inspection, and replacement during maintenance windows. This reduces labor hours and cross-disciplinary downtime in retrofit projects and new installs. Application: panel builders and OEMs upgrading legacy cabinets. Feature → Business Impact → Application: Comprehensive certifications and compliances (UL Listed, CE Marked, NEMA Compliant, plus KEMA, CSA, ANSI, DNV GL, ABS) mitigate regulatory risk and streamline procurement for global operations. Application: multinational facilities needing consistent safety and performance standards. Feature → Business Impact → Application: Large enclosure compatibility and substantial physical robustness (24+ in overall footprint, 237 lb weight) support secure installation in demanding environments, ensuring long service life with predictable performance. Application: heavy industrial automation, mining, and steel/chemical processing facilities.

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FAQs

The MPS8403WEAXX2H is designed for drawout vertical mounting on a Magnum PXR frame and features a three-pole construction. It fits standard double-standard frames and supports straightforward retrofits in existing switchgear while maintaining safe, accessible maintenance paths. This simplifies panel upgrades and minimizes downtime during installation.
The breaker provides a rated uninterrupted current (Iu) of 4000 A and an interrupt rating of 85 kAIC. These ratings indicate strong protection for large electrical loads and fast fault interruption, reducing the risk of collateral damage in high-energy fault events commonly found in heavy industry and data-center applications.
Yes. The MPS8403WEAXX2H is UL Listed and CE Marked, with additional certifications including KEMA, CSA, ANSI, DNV GL, ABS, and Lloyd’s Register. This broad certification portfolio supports global procurement, ensures regulatory compliance, and facilitates acceptance across multinational facilities and supply chains.
Industries with demanding power distribution and high fault-energy scenarios benefit most, including manufacturing, process plants, mining, data centers, and chemical facilities. The 4000 A Iu and 85 kAIC ratings enable reliable protection for large motors, feeders, and critical loads while supporting selective tripping to minimize disruption.
The Magnum MPS8403WEAXX2H supports longer service life through robust construction and compatible PXR20 ARMS protection. ROI considerations include reduced downtime from selective protection, faster fault isolation, and easier maintenance due to drawout mounting. Weight and dimensions imply solid enclosure fitment, with global certifications simplifying procurement and compliance overhead.