Eaton MPS85A4WEAXX2C Power Circuit Breaker - UL Listed

Part Number: MPS85A4WEAXX2C
MPS85A4WEAXX2C
Manufacturer
Eaton
Part number
MPS85A4WEAXX2C
Category

Quick Summary

Eaton MPS85A4WEAXX2C is a Magnum low voltage power circuit breaker designed for critical electrical protection in distribution panels. Engineers often struggle with achieving reliable selective coordination and safe maintenance; this unit's PXR20 LSIG trip unit and drawout vertical mounting address both. It carries CE Marked, UL Listed, and CSA Certified approvals to support multi-region compliance, simplifying procurement and cross-border projects. Its four-pole construction and robust interrupting capacity enable scalable protection for large switchgear while ensuring fast, safe replacement of components. In practice, this combination translates to improved uptime, reduced maintenance costs, and greater flexibility in panel design and expansion.

Product Information

Extended Description

MPS85A4WEAXX2C Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (NABCNABC), 85 kA, Four-pole, Drawout vertical mounting, PXR20 LSIG trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS85A4WEAXX2C
UPC
786689636241
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CE Marked SABA Listed CCC Marked NEMA Compliant
Certifications
CSA Certified ANSI KEMA Certified UL Listed Lloyd's Register Certified 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 - MPS85A4WEAXX2C Eaton Specification Sheet - MPS85A4WEAXX2C 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: Power Xpert Release PXR20 LSIG trip unit delivers precise, electronically coordinated protection. Business Impact: Reduces nuisance trips and improves fault isolation, lowering unplanned downtime. Application: Ideal for industrial power distribution where precise selectivity improves overall process reliability. Feature: Four-pole, drawout vertical mounting enables hot-swappable deployment and safer maintenance cycles. Business Impact: Minimizes panel downtime and speeds up service interventions. Application: Large switchgear and panel boards in manufacturing and processing facilities. Feature: High interrupting capability with up to 85 kA Icu and 5000 A rating provides robust fault protection. Business Impact: Safeguards downstream equipment and minimizes collateral damage during faults. Application: Critical loads, data centers, and heavy industrial feeders. Feature: Broad compliance footprint including CE Marked, UL Listed, CSA Certified, ANSI, KEMA, Lloyd’s Register, DNV GL, ABS. Business Impact: Streamlines global procurement and regulatory adherence. Application: OEMs and integrators deploying multi-region projects. Feature: Compatibility with Magnum PXR protection philosophy and quick-start guides enhances installation efficiency. Business Impact: Reduces commissioning time and accelerates time-to-protective operation. Application: System integrators upgrading legacy panels or expanding protective schemes.

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FAQs

For effective use, verify panel compatibility with Magnum drawout frames, ensure vertical clearance for inspection, and align mounting rails and bus connections during replacement. The PXR20 LSIG unit should be paired with appropriate protection settings, and follow Eaton’s quick-start guides to avoid misalignment that could affect trip performance.
The PXR20 LSIG trip unit provides integrated protection logic with precise coordination among breakers in a feeder chain. It offers adjustable trip curves and release logic that minimize unnecessary interruptions, improving uptime and safeguarding sensitive loads in complex distribution architectures.
This breaker carries CE Marked, UL Listed, and CSA Certified approvals, along with ANSI, KEMA, Lloyd’s Register, DNV GL, and ABS certifications. Such a broad portfolio supports regulatory compliance for global deployments and simplifies cross-border procurement and installation.
An 85 kA interrupting rating ensures the breaker can safely interrupt high fault currents, protecting downstream equipment and maintaining system integrity. This rating is critical for large feeders and critical loads, reducing risk of damage to transformers, cables, and downstream protection devices during a fault.
Benefits include reduced unplanned downtime through reliable selective coordination, faster maintenance via drawout mounting for quick swaps, and extended service life from robust protection. Global certifications also cut procurement time and warranty complexity, delivering lower lifecycle costs for OEMs and end users.