Eaton MPSC403MEAXX2A Magnum low voltage power circuit breaker - UL Listed

Part Number: MPSC403MEAXX2A
MPSC403MEAXX2A
Manufacturer
Eaton
Part number
MPSC403MEAXX2A
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker protects electrical distributions by interrupting overcurrent events. Engineers often face nuisance trips, slow maintenance cycles, and integration gaps with legacy protection schemes. This model carries SABA Listed, CCC Marked, and CE compliance, alongside ANSI, KEMA, CSA, UL, and Lloyd’s Register certifications. Powered by a motorized racking-enabled PXR20 LSI trip unit, it enables precise selective coordination and faster maintenance in new builds or retrofits. In addition, the Magnum family supports integration with Power Xpert Protection Manager for advanced monitoring and remote configuration. This combination helps minimize downtime and extend asset life in critical production lines.

Product Information

Extended Description

MPSC403MEAXX2A 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, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC403MEAXX2A
UPC
786689634551
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
SABA Listed CCC Marked NEMA Compliant CE Marked
Certifications
ANSI KEMA Certified CSA Certified Lloyd's Register Certified UL Listed 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 - MPSC403MEAXX2A Eaton Specification Sheet - MPSC403MEAXX2A 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 mounting with motorized racking. Benefit: Reduces maintenance time and enhances operator safety, enabling faster rack/unrack operations in live panels. Application: Retrofit projects and new installations in manufacturing lines where downtime must be minimized. Long-tail keywords addressed: drawout protection, motorized racking, live-panel maintenance. Feature: PXR20 LSI trip unit integration. Benefit: Delivers precise protection logic, improved selective coordination, and arc energy management to limit damage and nuisance trips. Application: Large control centers and critical load sectors. Long-tail keywords: Power Xpert Release, LSI trip unit, selective coordination. Feature: High interrupting capacity and fault current resilience. Benefit: Withstands large fault currents (4000 A frame, 100 kA rating) to protect feeders and equipment in heavy industries. Application: Data centers, steel and chemical processing facilities. Long-tail keywords: 4000 A withstand, 100 kA, protective feeders. Feature: Global certifications and compliance coverage. Benefit: Simplifies procurement and validation across regional projects, reducing QA cycles. Application: International manufacturing sites with multi-region standards. Long-tail keywords: UL Listed, ANSI, CE Marked, NEMA compliant. Feature: Compatibility and installation advantages. Benefit: Drawout frame compatibility with Magnum PXr drivers simplifies upgrades and retrofits, reducing engineering risk. Application: Panel modernization programs and new build-outs. Long-tail keywords: Magnum frame compatibility, panel upgrade, plug-and-play.

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FAQs

The MPSC403MEAXX2A uses a drawout vertical mounting with motorized racking designed for Magnum PXr systems, ensuring plug-and-play compatibility with standard Magnum frames. Verify frame size, mounting rails, and racking clearances during retrofit to ensure precise alignment and safe motorized operation. Refer to the Magnum PXr quick-start guides for installation sequencing and torque specifications.
The PXR20 LSI trip unit delivers advanced protection logic, including long-time, short-time, and instantaneous protection with load-shedding capabilities when applicable. It enables selective coordination across feeders, reduces arc energy exposure, and supports remote configuration via Power Xpert Protection Manager for streamlined commissioning and monitoring.
Yes. The PXR20 LSI trip unit and Magnum architecture are designed to support selective coordination in multi-panel installations. By coordinating trip curves and settings across upstream and downstream devices, you can minimize outages to non-faulted circuits while ensuring fast clear of faults on affected feeders.
The unit carries UL Listed, ANSI, KEMA, CSA, Lloyd’s Register, and ABS certifications, along with CE Mark and NEMA compliance. This broad certification portfolio supports regulatory acceptance across regional markets and simplifies procurement for multinational projects.
Expect reduced downtime due to motorized racking, quicker replacement cycles, and easier upgrades to PXR-based protection. The comprehensive trip-unit capabilities enable precise fault isolation, lowering wear on downstream equipment. Over time, this translates to lower maintenance costs, reduced unplanned outages, and a favorable return on investment for critical production lines.