Eaton Magnum low-voltage MPS85N4VEAXXSW - 85 kAIC

Part Number: MPS85N4VEAXXSW
MPS85N4VEAXXSW
Manufacturer
Eaton
Part number
MPS85N4VEAXXSW
Category

Quick Summary

Eaton Magnum low-voltage power circuit breaker protects feeders and motor circuits in industrial panels. Engineers often struggle with space constraints, long lead times, and the need for reliable fault interruption across harsh duty cycles. This unit carries UL Listed, CE Marked, and CSA Certified credentials, plus an 85 kAIC interrupt rating and 5000 A Iu, supporting code compliance and high-demand applications. With a Magnum PXR four-pole design, fixed vertical mounting, and a no-trip-unit configuration, it delivers scalable protection without unnecessary complexity, reducing maintenance and total cost of ownership.

Product Information

Extended Description

MPS85N4VEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (NNAABBCC), 85 kA, Four-pole, Fixed vertical mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS85N4VEAXXSW
UPC
786689636715
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
SABA Listed CE Marked NEMA Compliant CCC Marked
Certifications
KEMA Certified CSA Certified Lloyd's Register Certified UL Listed ANSI DNV GL Certified ABS Certified
Frame
Double standard
Number of poles
Four-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
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 - MPS85N4VEAXXSW Eaton Specification Sheet - MPS85N4VEAXXSW 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: Frame and poles — Double standard frame with four-pole configuration provides robust distribution protection while maintaining compatibility with standard panel layouts, enabling easier stocking and faster installations. Business impact: reduces project lead times and simplifies sourcing; Application: electrical rooms in manufacturing plants and process facilities. Feature → Business Impact → Application: High fault current handling — 5000 A Iu and 85 kAIC interrupt rating deliver reliable interruption under demanding fault conditions, protecting downstream equipment and minimizing downtime. Business impact: improved reliability and reduced repair costs; Application: heavy industry motor feeders and critical process lines. Feature → Business Impact → Application: Compliance and certifications — UL Listed, CE Marked, CSA Certified, plus KEMA and Lloyd's Register among others ensure global acceptance and traceable conformity. Business impact: eases global deployments and supplier qualification; Application: multinational facilities and regulated industries. Feature → Business Impact → Application: No trip unit — Simplified maintenance and lower upfront cost with straightforward commissioning while preserving protection integrity; Business impact: lower lifecycle cost and faster start-up; Application: existing protection schemes or future upgrades to Magnum PXR trip units. Feature → Business Impact → Application: Physical envelope — Measures 16.3 in L, 16.8 in H, 44.1 in W with fixed vertical mounting; Business impact: fits tall switchgear and modular enclosures; Application: control panels with space planning constraints. Feature → Business Impact → Application: Upgrade path — Field-upgrade flexibility to integrate with Magnum PXR protection strategy and Protection Manager ecosystem when needed; Business impact: scalable protection and extended asset life; Application: plant-wide protection strategy evolution.

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FAQs

This unit is supplied without a trip unit and features a fixed vertical mounting in a double standard frame, designed for straightforward installation. It can be paired with Magnum PXR protection systems and field-upgraded with trip units for enhanced coordination when your protection strategy evolves. Always verify enclosure compatibility and bus bar dimensions before final mounting.
The breaker provides a rated uninterrupted current (Iu) of 5000 A and an interrupt rating of 85 kAIC, four-pole construction, and fixed vertical mounting. These ratings support high-demand fault scenarios and ensure all phases interrupt synchronously, which is critical for protecting downstream equipment and maintaining process continuity.
Ideal for large motor feeders, distribution panels, and process-control cabinets in heavy industry where high fault currents require robust protection. The four-pole design ensures balanced protection across all phases, and the fixed mounting simplifies installation in tall switchgear racks, supporting durable, code-compliant protection in demanding environments.
This Eaton breaker is UL Listed, CE Marked, and CSA Certified, with additional certifications such as KEMA, Lloyd's Register, and ABS noted in technical literature. These credentials support regulatory compliance across North America and international installations. Always confirm certificate numbers in project docs and consult the latest Eaton datasheets for the current scope.
The no-trip-unit configuration reduces maintenance complexity and minimizes routine inspections, while the high interrupt rating and 5000 A Iu capability support longer equipment life in harsh environments. Its straightforward replacement path and compatibility with the Magnum PXR ecosystem enable scalable diagnostics and easier coordination, delivering lower total cost of ownership over the service life.