Eaton MPS85N4MEAXX2A Magnum Low Voltage Power Circuit Breaker - UL Listed, 85 kA

Part Number: MPS85N4MEAXX2A
MPS85N4MEAXX2A
Manufacturer
Eaton
Part number
MPS85N4MEAXX2A
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker is a four-pole drawout protection device designed for industrial power distribution. Facilities struggle with nuisance trips, maintenance delays, and complex trip-unit tuning that erode uptime and raise costs. This unit carries CE Marked, UL Listed, and NEMA compliance, plus KEMA and Lloyd's Register certifications for global acceptance. Coupled with a Power Xpert Release PXR20 LSI trip unit and motorized racking, it delivers reliable protection, easier service, and faster installation—essential for modern power distribution. Designed for retrofit and new-build projects, it aligns with common Magnum accessories and facilitates scalable protection across plant sections.

Product Information

Extended Description

MPS85N4MEAXX2A 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 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS85N4MEAXX2A
UPC
786689636654
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CCC Marked NEMA Compliant CE Marked SABA Listed
Certifications
KEMA Certified Lloyd's Register Certified ANSI UL Listed CSA Certified 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 Power Xpert Release trip unit for Magnum PXR circuit breakers PXR 20/25 user manual Power Xpert Release trip unit for Magnum PXR circuit breakers PXR 20/25 user manual Power Xpert Release trip unit for Magnum PXR circuit breakers PXR 20/25 user manual Circuit Protection, Power Breakers, Contactors and Fuses, Volume 4, Tab 3 Power Xpert Protection Manager x32 22.06 1 Power Xpert Protection Manager x32 22.06 1 Eaton Specification Sheet - MPS85N4MEAXX2A Eaton Specification Sheet - MPS85N4MEAXX2A Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Cyber security white paper Cyber security white paper Cyber security white paper
Feature: Four-pole drawout vertical with motorized racking mounting → Business Impact: Safe maintenance, fast motorized racking cycles, and reliable pole alignment reduce downtime and mis-wiring risk. Application: Panelboards and motor control centers in manufacturing environments. Feature: Power Xpert Release PXR20 LSI trip unit integrated → Business Impact: Enhanced protection coordination, adjustable tripping to match motor inrush and load profiles, and easier commissioning. Application: Critical process lines and high-inertia loads requiring precise protection. Feature: 85 kA interrupt rating with 5000 A frame, four-pole design → Business Impact: Robust fault containment and reduced system-wide arc energy, lowering damage potential and downtime. Application: Heavy-duty distribution sections and large motor feeders. Feature: Drawout installation with motorized racking → Business Impact: Safe, hands-off maintenance and faster device replacement, minimizing plant disruptions. Application: Routine maintenance and protection upgrades in existing switchgear. Feature: Comprehensive certifications and documentation (UL, CE, NEMA, KEMA, Lloyd’s) → Business Impact: Streamlined procurement, faster regulatory approval, and consistent global compliance. Application: Multinational facilities and projects with strict supply-chain requirements. Feature: Availability of technical literature and renewal parts → Business Impact: Long-term support, reduced spare-parts variety, and easier lifecycle management. Application: Upgrades, repairs, and ongoing maintenance programs for Magnum PXR systems.

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FAQs

The MPS85N4MEAXX2A uses a drawout vertical mounting with motorized racking, designed for safe removal and reinstallation without interrupting other devices. This configuration simplifies commissioning, enables rapid routine maintenance, and is compatible with Magnum frame switchgear and compatible panels found in modern plants.
Key specs include a four-pole design, 85 kA interrupt rating, a 5000 A frame, and integration of the PXR20 LSI trip unit. The unit weighs 319 lb and measures 16.3 in in length, 16.8 in in height, and 44.1 in in width. These factors enable reliable protection for large motors and heavy start-up currents.
Yes. The PXR20 LSI trip unit supports coordination settings to help achieve selective protection across motor feeders and downstream breakers. For optimal results, reference Eaton coordination papers and the Magnum PXR product literature to configure timing, load profiles, and fault-clearing strategies while meeting regional standards.
The MPS85N4MEAXX2A carries UL Listed, CE Marked, and NEMA Compliant certifications, along with multiple third-party attestations such as KEMA, Lloyd’s Register, ANSI, CSA, ABS, and DNV GL. This broad certification footprint supports global procurement, regulatory approvals, and consistent performance expectations in diverse markets.
Maintenance resources include user manuals and application notes for PXR units, renewal parts and accessories documentation, and technical papers on selective coordination. Eaton’s catalog and documentation streamline repairs, replacements, and lifecycle planning, helping to reduce downtime and extend the service life of Magnum PXR installations.