Eaton MPSC403MEAXX2S Magnum LV Breaker - UL Listed

Part Number: MPSC403MEAXX2S
MPSC403MEAXX2S
Manufacturer
Eaton
Part number
MPSC403MEAXX2S
Category

Quick Summary

The MPSC403MEAXX2S Eaton Magnum low voltage breaker provides reliable overcurrent protection for switchgear and motor control centers. Engineers often struggle with nuisance trips, extended installation times, and the challenge of coordinating protection in dense panels. This model is UL Listed, CE Marked, and Lloyd's Register certified, supporting global compliance and smoother audits. With a 4000 A interrupting capacity and a three-pole, drawout vertical design featuring a motorized racking mechanism and the PXR25 LSIGAM trip unit, it enables faster commissioning and safer operation in industrial power distributions. By pairing robust protection with Power Xpert integration, it helps maximize uptime and minimize maintenance costs in critical facilities.

Product Information

Extended Description

MPSC403MEAXX2S Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (ABCABC), 100 kA, Three-pole, Drawout vertical with motorized racking mounting, PXR25 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC403MEAXX2S
UPC
786689634728
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 SABA Listed CE Marked
Certifications
Lloyd's Register Certified UL Listed KEMA Certified CSA Certified ANSI 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 - MPSC403MEAXX2S Eaton Specification Sheet - MPSC403MEAXX2S 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: Drawout vertical with motorized racking mounting. Business Impact: Reduces field labor during installation and maintenance, speeding up commissioning and replacement. Application: Large switchgear and motor control centers where quick racking improves uptime and safety. Feature: PXR25 LSIGAM trip unit. Business Impact: Enables precise protection coordination and selective tripping, lowering arc flash risk and nuisance trips. Application: Medium to high-energy drives and process equipment requiring selective protection. Feature: 4000 A current rating with 100 kA interrupting capacity. Business Impact: Strong fault handling for high-demand machinery, improving system reliability and reducing downstream damage. Application: Heavy-duty motors, conveyors, and process lines in manufacturing. Feature: Double standard frame with three-pole configuration. Business Impact: Interchangeable, scalable protection with standardized maintenance parts and easier replacements. Application: Global projects needing consistent parts across sites. Feature: Large footprint and protective certifications. Business Impact: Clear installation envelope and compliance with NEMA, CE, UL, and other standards, simplifying approvals and warranty coverage. Application: Panel builders and integrators delivering durable, compliant power protection. Note: Compatibility with Power Xpert Protection Manager supports centralized monitoring and easier upgrades for evolving automation architectures.

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FAQs

Yes. The MPSC403MEAXX2S is designed for use with Magnum panel architectures and supports Power Xpert Protection Manager integration. Its drawout vertical design with motorized racking simplifies retrofit and service, reducing panel downtime. When planning a retrofit, verify bus bar spacing and mounting dimensions (drawout frame, 3-pole configuration) to ensure seamless integration with current switchgear and software licenses.
The PXR25 LSIGAM trip unit provides advanced protection logic for selective coordination, enabling precise fault isolation and reduced arc-flash risk. It supports configurable protection curves and communication with protection management software. This translates to fewer nuisance trips, improved motor startup performance, and easier compliance with utility and industrial standards for large drives and process equipment.
Absolutely. With a 4000 A rating, 100 kA interrupting capacity, and three-pole drawout mounting, the MPSC403MEAXX2S is well-suited for motor control centers and large switchgear. Its robust construction, motorized racking, and compatibility with protection management systems support scalable deployment, faster maintenance cycles, and safer, more reliable power distribution in demanding facilities.
This model carries UL Listed and CE Marked certifications, and is further certified by Lloyd's Register, with additional KEMA, CSA, ANSI, DNV GL, and ABS attestations. Such a certification suite supports global project approvals, steady performance in cross-border sites, and alignment with industry safety and reliability expectations for critical infrastructure.
Expect reduced maintenance downtime due to motorized racking and faster replacements, along with improved uptime from selective coordination and lower nuisance trips via the LSIGAM trip unit. Although initial cost may be higher than basic breakers, the lifecycle savings from safer operation, easier service, and compliance-driven approvals typically yield a favorable return on investment in high-demand applications.