Eaton MPSC403HEAXX2F Magnum LV Circuit Breaker - UL Listed

Part Number: MPSC403HEAXX2F
MPSC403HEAXX2F
Manufacturer
Eaton
Part number
MPSC403HEAXX2F
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker MPSC403HEAXX2F provides primary overcurrent protection for industrial switchgear and power distribution systems. Engineers often grapple with protecting costly equipment while meeting uptime and space constraints in compact panels. This unit carries UL Listed and CE Marked certifications, along with additional third-party validations such as CSA, KEMA, Lloyd’s Register, ANSI, ABS and DNV GL to support global deployments. Designed for seamless integration with Power Xpert Release trip units, it delivers robust protection, reliability, and easy panel integration, helping facilities minimize unplanned downtime and simplify compliance in demanding environments.

Product Information

Extended Description

MPSC403HEAXX2F Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (ABCABC), 100 kA, Three-pole, Fixed horizontal mounting, PXR20 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC403HEAXX2F
UPC
786689634261
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
CCC Marked NEMA Compliant CE Marked SABA Listed
Certifications
Lloyd's Register Certified UL Listed CSA Certified KEMA Certified ANSI 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 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 - MPSC403HEAXX2F Eaton Specification Sheet - MPSC403HEAXX2F 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
High interrupting capacity and large-frame design deliver reliable protection for feeders and motors, supporting 100 kA interrupting capability and a 4000 A frame. Business impact: minimized fault duration, reduced arc-flash risk, and improved overall plant uptime; application: heavy manufacturing lines and critical power feeders. The PXR20 LSIGAM trip unit enables selective coordination and fast fault isolation, ensuring only the affected circuit trips, which lowers maintenance costs and improves safety. Business impact: safer operations and simplified protection schemes; application: large switchgear and data-center power rooms. Fixed horizontal mounting with a three-pole configuration provides a predictable, space-efficient footprint that accelerates installation and reduces commissioning time; application: retrofit into standard enclosures. The unit’s comprehensive certifications and international approvals ensure readiness for global projects, reducing the need for multiple SKUs. Business impact: faster procurement and streamlined compliance. Documentation and renewal part availability support long-term lifecycle management, lowering total cost of ownership.

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FAQs

This model is designed for fixed horizontal mounting and three-pole configurations, fitting standard industrial enclosures. Verify panel width and clearance to accommodate the 31.1 in width and 16.8 in height, and confirm busbar alignment with the Magnum PXR protection system. Planned retrofits should consider mounting hardware and compatible protection units to ensure seamless integration with existing protection schemes.
The PXR20 LSIGAM trip unit provides advanced protection features, enabling selective coordination and precise fault isolation. It supports fast tripping decisions, improves system reliability, and reduces unnecessary outages. This compatibility simplifies protection scheme upgrades in large switchgear and aligns with monitoring via Power Xpert Protection Manager for better visibility.
The breaker is UL Listed and CE Marked, and it also carries NEMA compliance with additional certifications including CSA, KEMA, Lloyd’s Register, ANSI, ABS, and DNV GL. These certifications support global deployments, regulatory compliance, and customer assurance across multiple regions and industries.
Designed for demanding industrial protection, it excels in data centers, manufacturing lines, and large power distribution panels. Its 100 kA interrupting capacity and 4000 A frame support high fault current environments, while the PXR20 trip unit enhances selective protection for critical loads and equipment longevity.
Plan for regular inspection of protective settings and trip unit diagnostics, with attention to Power Xpert compatibility for monitoring. Renewal parts and accessories are available from Magnum renewal programs, reducing downtime during component replacements and ensuring long-term availability of essential parts for lifecycle management.