Eaton MPSC403VEAXX2A Magnum low-voltage breaker - UL Listed
Part Number: MPSC403VEAXX2A
Quick Summary
Eaton Magnum low voltage power circuit breaker protects industrial power distribution with reliable overcurrent protection. Engineers often grapple with selecting devices that meet precise interrupt ratings while fitting compact panels and enabling easy maintenance. This model carries UL Listed, CSA Certified, and CE Marked approvals, supporting cross-border compliance and minimizing qualification risk. With the PXR20 LSI trip unit and fixed vertical mounting, it enables selective coordination and straightforward panel integration, delivering enhanced reliability and reduced downtime. The result is a scalable protection solution that supports lifecycle cost reduction, easier retrofits, and smoother commissioning across diverse manufacturing and infrastructure applications.
Product Information
Extended Description
MPSC403VEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (ABCABC), 100 kA, Three-pole, Fixed vertical mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC403VEAXX2A
UPC
786689634742
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
UL Listed CSA Certified KEMA Certified Lloyd's Register 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 - MPSC403VEAXX2A
Eaton Specification Sheet - MPSC403VEAXX2A
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-capacity protection and reliable performance: The MPSC403VEAXX2A is built around a 4000 A (ABCABC) framework with a 100 kA short-circuit rating, delivering robust protection for large feeders and motor control centers. Business impact: fewer nuisance trips, improved uptime, and lower risk of arc fault events in demanding facilities. Application: ideal for switchgear, MCCs, and high-demand distribution panels where uptime matters. PXR20 LSI trip unit enables advanced protection settings and selective coordination, reducing unnecessary trips and enabling scalable coordination across multi-zone systems. This supports faster commissioning and reduced maintenance costs in manufacturing lines and data centers. Compatibility and installation advantages include fixed vertical mounting that simplifies retrofits into existing vertical buses and standard Magnum frames, with strong regulatory compliance supporting global procurement and audit readiness. Industry-specific context: engineers benefit from a unified protection strategy across legacy and new builds, aided by Power Xpert ecosystem compatibility and readily available Eaton documentation.
Get a Quick Quote for a Eaton MPSC403VEAXX2A
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton MPSC403VEAXX2A?
Enquire Now
FAQs
The MPSC403VEAXX2A is designed for fixed vertical mounting within Magnum frame assemblies and is compatible with the PXR20 LSI trip unit. It fits standard Magnum configurations, enabling straightforward retrofits and panel upgrades. When planning installations, verify existing bus systems, space allowances, and mounting clearance to ensure seamless integration with minimal downtime and consistent protection performance.
This three-pole Magnum breaker supports a 4000 A (ABCABC) frame and a 100 kA short-circuit rating, with a PXR20 LSI trip unit for adjustable protection curves. It is UL Listed, CSA Certified, and CE Marked, offering reliable overcurrent protection for large feeders and MCCs. The device is designed for fixed installation in vertical configurations and provides robust protection in demanding industrial environments.
The breaker is ideal for industrial power distribution, control panels, motor control centers, and machine-builders requiring high interrupt capacity and selective coordination. Its fixed mounting and PXR20 trip unit support scalable protection schemes, making it suitable for manufacturing facilities, data centers, and process industries that demand uptime, predictable tripping behavior, and regulatory compliance across regions.
The MPSC403VEAXX2A carries UL Listed, CSA Certified, and CE Marked certifications, along with NEMA compliance and additional approvals such as CCC Marked, SABA Listed, and others. These certifications simplify global procurement, regulatory audits, and cross-border installation projects, ensuring the breaker meets safety and performance standards applicable in North America and Europe.
Eaton provides comprehensive documentation (spec sheets, application notes, and manuals) and a full ecosystem for protection management, including Power Xpert Protection Manager resources. The availability of renewal parts, service guides, and certified replacement components supports long-term reliability, minimizes unplanned downtime, and delivers a favorable total cost of ownership for critical power distribution systems.