Eaton Magnum low voltage power breaker MPS85N4MEAXX2F - UL
Part Number: MPS85N4MEAXX2F
Quick Summary
Eaton Magnum low voltage power breaker MPS85N4MEAXX2F protects electrical distribution by rapidly interrupting fault currents in industrial power systems. In practice, engineers face protection coordination challenges and downtime when breakers aren’t aligned with motor loads or maintenance cycles. This unit carries CE Marked, UL Listed, and ANSI/CSA certifications, plus other global validations, supporting safe, compliant installations. By combining a Magnum PXR trip unit with a robust mechanical design, it enables faster maintenance, easier replacement, and reliable protection across panels, MCCs, and data-center infrastructure. The result is improved uptime, reduced risk, and a clear path to scalable protection strategies with enhanced visibility and control.
Product Information
Extended Description
MPS85N4MEAXX2F Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (NNAABBCC), 85 kA, Four-pole, Drawout vertical with motorized racking mounting, PXR20 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS85N4MEAXX2F
UPC
786689636678
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
SABA Listed CCC Marked CE Marked NEMA Compliant
Certifications
Lloyd's Register Certified ANSI CSA Certified KEMA Certified UL Listed DNV GL Certified ABS Certified
Frame
Double standard
Number of poles
Four-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Trip Type
PXR20 LSIG ARMS
Number of poles
Four-pole
Rated uninterrupted current (Iu)
5000 A
Interrupt rating
85 kAIC
Interrupt rating
85 kAIC
Rated uninterrupted current (Iu)
5000 A
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 - MPS85N4MEAXX2F
Eaton Specification Sheet - MPS85N4MEAXX2F
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 → Business Impact → Application: The four-pole, drawout vertical design with motorized racking enables rapid breaker swapping in field commissioning or maintenance, reducing downtime and labor costs while keeping critical power pathways protected in manufacturing lines and data centers. This aligns with application needs in motor control centers (MCCs) where quick restore times matter. Feature → Business Impact → Application: PXR20 LSIG ARMS trip unit provides selective coordination and precise fault blocking, improving safety margins and minimizing nuisance trips in complex distribution schemes, ideal for process industries and heavy manufacturing. Feature → Business Impact → Application: 5000 A Iu rating and 85 kAIC interrupt capability deliver robust short-circuit protection for high-load feeders, supporting compliance with industry standards and reducing the risk of equipment damage in metalworking and chemical processing plants. Feature → Business Impact → Application: Double standard frame and four-pole configuration offer compatibility with existing panels and expansion into larger power distribution schemes, facilitating retrofit projects, panel upgrades, and scalable protection in data centers and campus-wide installations. Feature → Business Impact → Application: Zone selective interlocking and Power Xpert Protection Manager compatibility enable centralized protection management, diagnostics, and faster fault isolation, delivering measurable improvements in maintenance efficiency and system reliability across industrial facilities. Feature → Business Impact → Application: Comprehensive certifications (UL, CE, ANSI CSA, NEMA) and broad compatibility address procurement and compliance hurdles, simplifying audits and supplier qualification in regulated industries such as oil & gas, mining, and pharmaceuticals. Feature → Business Impact → Application: The 16.3 in depth, 16.8 in height, and 44.1 in width delivery profile supports integration into large enclosure spaces and standard switchgear footprints, reducing custom fabrication and enabling straightforward installation in new builds and revamps. Feature → Business Impact → Application: The Magnum PXR trip unit ecosystem, along with available Eaton technical literature and time-current curves, supports informed selection and lifecycle planning, lowering total cost of ownership through predictable maintenance intervals and reduced spare part inventory.
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FAQs
The unit features a drawout vertical design with motorized racking and a double standard frame, enabling fast installation and straightforward replacement in existing switchgear and panelboard configurations. Its four-pole configuration aligns with common MCC and panel duties, while the PXR trip unit streamlines integration with Eaton protection management tools, reducing commissioning time and ensuring ongoing compatibility with Power Xpert Protection Manager.
This breaker provides a rated uninterrupted current (Iu) of 5000 A and an interrupt rating of 85 kAIC. It employs the Magnum PXR20 LSIG ARMS trip unit for precise arc fault and protection logic, and it is a four-pole device designed for high-load feeders. These specifications support reliable protection in demanding industrial applications such as motor feeders and main distribution panels.
Yes. The product carries CE Marked and UL Listed certifications, along with ANSI and CSA certifications and other recognized listings. It is also described as NEMA compliant and SABA listed, supporting global procurement and audit readiness for regulated sectors including oil and gas, mining, and chemical processing.
Integration with Power Xpert Protection Manager enables centralized protection configuration, real-time diagnostics, and event logging. This allows engineers to monitor trip histories, perform fault analysis remotely, and schedule predictive maintenance, which reduces unplanned downtime and improves overall reliability for critical processes and data-center facilities.
This breaker is well suited for industrial power distribution panels, motor control centers, switchgear upstream of large motors, and data-center infrastructure. Its robust interrupt capability, dual-standard frame design, and motorized racking make it ideal for retrofit projects, facility expansions, and new builds requiring reliable protection with scalable protection management.