Eaton MPS85N4VEAXX2Q Magnum PXR Circuit Breaker - 85 kAIC

Part Number: MPS85N4VEAXX2Q
MPS85N4VEAXX2Q
Manufacturer
Eaton
Part number
MPS85N4VEAXX2Q
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker is a reliable protection device for industrial switchgear and motor control centers. Engineers often struggle with accurate coordination and trip settings, risking unnecessary downtime and costly outages. UL Listed and CE Marked with ANSI, Lloyd's Register and DNV GL certifications provide global compliance for demanding environments. Built around the Power Xpert Release (PXR) trip unit, it supports scalable protection and straightforward integration into existing panels. This delivers robust motor protection and improved panel density, while meeting key requirements for reliability, safety, and maintenance efficiency.

Product Information

Extended Description

MPS85N4VEAXX2Q Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (NNAABBCC), 85 kA, Four-pole, Fixed vertical mounting, PXR25 LSIAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS85N4VEAXX2Q
UPC
786689636166
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
NEMA Compliant CE Marked SABA Listed CCC Marked
Certifications
UL Listed CSA Certified KEMA Certified ANSI Lloyd's Register Certified DNV GL Certified ABS Certified
Frame
Double standard
Number of poles
Four-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Trip Type
PXR25 LSI 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 Magnum PXR low voltage power circuit breakers user manual Magnum PXR low voltage power circuit breakers user manual Magnum PXR low voltage power circuit breakers user manual 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 - MPS85N4VEAXX2Q Eaton Specification Sheet - MPS85N4VEAXX2Q 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, double standard frame Magnum PXR with fixed vertical mounting. Business Impact: Enables efficient space utilization and reliable, coordinated protection in large control panels, reducing footprint while maintaining high fault tolerance. Application: Motor control centers and switchgear where four-pole protection and stable bus configuration are critical. The added benefit is easier retrofits and standardized mounting across legacy and new installations. Feature: PXR25 LSIAM trip unit. Business Impact: Improves selectivity and fast fault clearing with zone selective interlocking potential, lowering unintended outages and enabling precise protection coordination. Application: Complex industrial processes requiring tight coordination between feeders and main breakers. Feature: High interrupt rating of 85 kAIC and Iu of 5000 A. Business Impact: Supports heavy fault current environments with robust endurance, minimizing equipment damage and downtime during faults. Application: Power distribution networks with high short-circuit potential in manufacturing facilities and data centers. Feature: UL Listed, CSA Certified, KEMA, ANSI, Lloyd’s Register, DNV GL and other certifications. Business Impact: Reduces regulatory risk and simplifies compliance documentation for regulated industries. Application: Aerospace, automotive, and process industries where multi-region approvals matter. Feature: Availability of renewal parts and accessories. Business Impact: Lowers lifecycle costs and extends breaker usability through drop-in parts and compatible accessories. Application: Long-term maintenance programs and panel upgrades. Feature: Compatibility with Power Xpert Protection Manager and related tooling. Business Impact: Enables proactive asset monitoring, faster troubleshooting, and streamlined engineering workflows. Application: Modern plants pursuing digital integration and predictive maintenance.

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FAQs

For this unit, ensure the enclosure supports a four-pole configuration with fixed vertical mounting. Verify panel space and clearances per the Magnum frame requirements, and align mounting studs to minimize misalignment. The double standard frame aids retrofit compatibility with existing Eaton assemblies, reducing installation time and risk.
The PXR25 LSI ARMS trip unit provides advanced arc-flash reduction and selective coordination, enabling precise tripping logic and reduced nuisance trips. In high-current environments, this delivers faster isolation of faulted circuits without interrupting non-faulted paths, improving reliability and uptime while supporting safer maintenance procedures.
Yes, it is UL Listed and CE Marked, with additional certifications including ANSI, CSA, KEMA, Lloyd's Register, DNV GL, and ABS. These endorsements facilitate global compliance across regulated industries and simplify cross-border procurement for multinational projects.
Magnum PXR is ideal for motor control centers, power distribution panels, and process automation assemblies requiring high interrupt ratings and reliable protection. Its four-pole, double-frame design supports large motors and feeders, while the LSI ARMS trip unit helps coordinate protection across multiple feeders and devices.
Plan for lifecycle maintenance with availability of renewal parts and accessories, which reduces replacement lead times and spare-part costs. Pairing with Power Xpert Protection Manager enables proactive monitoring and faster troubleshooting, driving reduced downtime and a lower total cost of ownership over the long term.