Eaton MPS85N4HEAXX2Q Magnum LV Circuit Breaker - UL Listed
Part Number: MPS85N4HEAXX2Q
Quick Summary
The Eaton Magnum low voltage power circuit breaker provides precise overcurrent protection for industrial panels and switchgear. End-users often battle nuisance trips, miscoordination between feeders, and costly maintenance with aging protection. This device carries UL Listed, CE Marked, and NEMA compliance to meet global safety and performance standards. Also compatible with Power Xpert Release trip units, it supports selective coordination and faster fault isolation. For manufacturers seeking scalable protection with reliable uptime, MPS85N4HEAXX2Q delivers value through industry-grade reliability and serviceability. Engineered for fixed horizontal mounting, four-pole construction and a PXR25 LSIAM trip unit, it fits standard frames and simplifies installation. This translates to shorter commissioning times and lower lifecycle costs.
Product Information
Extended Description
MPS85N4HEAXX2Q Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (NNAABBCC), 85 kA, Four-pole, Fixed horizontal mounting, PXR25 LSIAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS85N4HEAXX2Q
UPC
786689636616
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
SABA Listed NEMA Compliant CCC Marked CE Marked
Certifications
ANSI Lloyd's Register Certified KEMA Certified CSA Certified UL Listed DNV GL Certified ABS 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 - MPS85N4HEAXX2Q
Eaton Specification Sheet - MPS85N4HEAXX2Q
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
Power Xpert Release trip units provide accurate selective coordination, enabling downstream protection to operate independently during a fault. Business impact: faster fault isolation, reduced system-wide outages, and lower maintenance costs. Application: motor feeders on production lines and critical process equipment benefit from staged protection without unnecessary trips. The Magnum design combines 5000 A withstand with 85 kA interrupt capacity and four-pole construction, delivering robust protection against high-energy faults. Compatibility with fixed horizontal mounting and standard Magnum frames simplifies retrofit and reduces wiring errors. Mounting stability and balanced protection are enhanced by the four-pole configuration, improving panel reliability in dense electrical rooms. Documentation and digital tools, including specification sheets, application notes, and Protection Manager resources, streamline design-in, commissioning, and ongoing maintenance. Compliance and lifecycle support are reinforced by UL Listed, CE Marked, and NEMA certifications, along with renewal parts and service information to minimize downtime and total cost of ownership.
Get a Quick Quote for a Eaton MPS85N4HEAXX2Q
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 MPS85N4HEAXX2Q?
Enquire Now
FAQs
When planning installation, verify four-pole, fixed horizontal mounting compatibility with your panel footprint and Magnum frame. Confirm bus bar ratings align with 5000 A withstand and 85 kA interrupt capacity. Use the PXR25 LSIAM trip unit for selective coordination and ensure proper torque on terminal connections per the Magnum installation guide to minimize resistance losses and heat buildup.
The Power Xpert Release (PXr) trip unit enables selective coordination by coordinating with upstream breakers to trip only the faulted segment. This minimizes downtime and prevents unnecessary outages. In practice, you achieve faster fault isolation on motor feeders and critical loads, while reducing arc flash exposure and maintenance cycles through precise protection settings and remote configuration via compatible protection software.
Yes. The four-pole Magnum MPS85N4HEAXX2Q is well-suited for motor feeders and critical power distribution in data centers due to its high interrupt rating, robust mechanical design, and PXr trip-unit compatibility. It supports selective coordination, reduces nuisance trips, and simplifies panel upgrades, enabling reliable uptime and scalable protection for growing industrial loads.
The breaker is UL Listed, CE Marked, and NEMA compliant, among other certifications. These credentials validate safety, environmental, and performance standards across major markets, aiding regulatory compliance and procurement. Access to certification documents and application papers from Eaton further supports design-in, qualification testing, and audit readiness during project deployments.
Upgrading to MPS85N4HEAXX2Q can reduce unplanned downtime through improved selective coordination and faster fault isolation. The modular PXr trip unit provides predictable protection, lowering nuisance trips, while compatibility with renewal parts and Eaton docs simplifies maintenance planning. Over time, this translates to lower total cost of ownership and a faster return on investment through improved system reliability.