Eaton Magnum low voltage power circuit breaker MPS8403WEAXX2C - UL Listed

MPS8403WEAXX2C
Manufacturer
Eaton
Part number
MPS8403WEAXX2C
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker is a rugged three-pole protection device designed for demanding industrial power distribution. This model, MPS8403WEAXX2C, provides reliable interruption with a 4000 A frame and 85 kA short-circuit capability, making it suitable for critical panels and line starts. Key certifications—UL Listed, CE Marked, and ANSI KEMA Certified—underscore global compliance for international projects. With the PXR20 LSIG trip unit, it combines precise protection coordination with modern trip technology. For integrators and maintenance teams, the unit delivers predictable performance, straightforward field maintenance, and seamless integration with Eaton Power Xpert protection ecosystems, reducing downtime while improving overall system reliability.

Product Information

Extended Description

MPS8403WEAXX2C Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (ABCABC), 85 kA, Three-pole, Drawout vertical mounting, PXR20 LSIG trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8403WEAXX2C
UPC
786689628697
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
CCC Marked SABA Listed CE Marked NEMA Compliant
Certifications
ANSI KEMA Certified Lloyd's Register Certified UL Listed CSA Certified ABS Certified DNV GL 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 Magnum PXR low voltage power circuit breakers user manual Magnum PXR low voltage power circuit breakers user manual Magnum PXR low voltage power circuit breakers user manual 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 - MPS8403WEAXX2C Eaton Specification Sheet - MPS8403WEAXX2C 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: High interrupting rating and 85 kA short-circuit capacity → Business Impact: Enables safe interruption of large fault currents, reducing damage to feeders and gear → Application: Primary power distribution panels and motor feeders in manufacturing facilities. Feature: PXR20 LSIG trip unit technology → Business Impact: Fast, selective tripping and coordinated protection → Application: Systems requiring precise protection curves and reduced nuisance trips in process lines. Feature: Drawout vertical mounting → Business Impact: Simplifies installation, testing, and maintenance in confined spaces → Application: Retrofit projects and new panel builds with limited clearance. Feature: Three-pole configuration with a double standard frame → Business Impact: Balanced protection across phases and robust mechanical integrity → Application: Three-phase power circuits in heavy equipment and automation cells. Feature: Global certifications (UL Listed, CE Marked, ANSI KEMA Certified) → Business Impact: Streamlined compliance for multinational projects, faster procurement cycles → Application: Global factories, data centers, and process industries. Feature: Compatibility with Magnum PXR ecosystem and renewal parts → Business Impact: Long-term support and simpler parts stocking → Application: Upgrades and lifecycle management for legacy installations.

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FAQs

The MPS8403WEAXX2C uses a drawout vertical mounting with a three-pole, double standard frame. This configuration supports straightforward installation in existing panels and facilitates quick maintenance or replacement without extensive rework.
This unit carries UL Listed and CE Marked certifications, along with ANSI KEMA Certified status, enabling global deployment and streamlining code compliance for multinational projects.
Yes. The unit ships with a PXR20 LSIG trip unit and is designed to integrate into the Magnum PXR protection ecosystem, supporting coordinated protection and easy upgrade paths.
Industries with heavy loads and critical power paths, such as manufacturing lines and process automation, benefit from the 4000 A interruption rating and 85 kA short-circuit capacity, ensuring rapid, selective tripping and reduced equipment damage.
Plan for a three-pole, drawout panel installation with vertical mounting clearance. Note dimensions approximate 16.3 in depth, 16.8 in height, and 31.1 in width, with a weight around 237 lb to ensure proper support and space in the control cabinet.