Eaton MPS85A4MEAXX2A Magnum LV Circuit Breaker - PXR20 LSI

Part Number: MPS85A4MEAXX2A
MPS85A4MEAXX2A
Manufacturer
Eaton
Part number
MPS85A4MEAXX2A
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects distribution panels and motor circuits in industrial facilities. Nuisance trips, limited coordination, and lengthy maintenance cycles frustrate operators; this device reduces downtime through precise, adjustable protection. The unit carries UL Listed, CE Marked, and CSA Certified approvals, ensuring compliance with global electrical codes. Equipped with a PXR20 LSI trip unit and motorized racking for drawout installation, it enables scalable, selective protection across MCCs. Designed for harsh industrial environments, it offers robust short-circuit protection and easy serviceability, while integration with Eaton's protection management software supports proactive monitoring and informed maintenance planning.

Product Information

Extended Description

MPS85A4MEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (NABCNABC), 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
MPS85A4MEAXX2A
UPC
786689636098
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CE Marked NEMA Compliant CCC Marked SABA Listed
Certifications
KEMA Certified ANSI UL Listed Lloyd's Register Certified 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 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 - MPS85A4MEAXX2A Eaton Specification Sheet - MPS85A4MEAXX2A 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
Four-pole design with a drawout vertical frame and motorized racking simplifies installation and maintenance, reducing panel downtime and improving safety during breaker changes. This translates to faster maintenance windows and fewer manual handling steps during replacements, especially in compact MCCs. Power Xpert Release PXR20 LSI trip unit provides precise protection curves and advanced coordination with downstream devices, enabling selective tripping that minimizes downtime and protects critical loads. This is particularly valuable in packaging lines and conveyors where motor starts and stops require tight coordination. With a 5000 A interrupting rating and 85 kA short-circuit capability, the Magnum breaker delivers robust fault protection while limiting arc exposure. UL Listed, CE Marked, and CSA Certified standards ensure broad code compliance for global plants. Drawout mounting and compatibility with existing Magnum PXR systems simplify retrofits, while documentation supports fast commissioning.

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FAQs

The MPS85A4MEAXX2A uses a drawout vertical frame with motorized racking and standard mounting rails compatible with Magnum PXR assemblies. Ensure proper rail kit, alignment, and torque per Eaton manuals; verify panel clearance and wiring space for safe operation during rack and stripe procedures.
This breaker provides a 5000 A interrupting rating (NABCNABC) and an 85 kA short-circuit rating. The PXR20 LSI trip unit delivers adjustable protection curves, fault indication, and remote coordination options for selective protection in MCCs and complex distribution schemes.
Yes. The four-pole, drawout design combined with motorized racking simplifies MCC maintenance and secure breaker changes. The PXR20 LSI unit enables precise motor protection coordination, reducing nuisance trips while protecting motors during startup and overload scenarios. This makes it a strong fit for packaging lines, conveyors, and other high-startup load environments.
The MPS85A4MEAXX2A carries UL Listed, CE Marked, and CSA Certified approvals, along with additional international certifications. This combination ensures compliance with safety, performance, and reliability requirements across diverse markets, simplifies procurement for multinational facilities, and supports regulatory audits.
Expect reduced downtime from easier maintenance enabled by motorized racking and straightforward drawout replacement. The PXR20 LSI trip unit improves protection coordination, minimizing unnecessary trips and preserving uptime for critical loads. Enhanced visibility through Eaton's analytics and Protection Manager supports proactive maintenance and faster troubleshooting, delivering a favorable total cost of ownership and quicker ROI for large-scale facilities.