Eaton MPS85N4HEAXX2A Magnum LV Breaker - 85 kAIC
Part Number: MPS85N4HEAXX2A
Quick Summary
Eaton Magnum low voltage power circuit breaker protects electrical systems in industrial power distributions. Engineers and procurement specialists often struggle to balance a high interrupt rating with space, installation time, and panel compatibility. This unit carries UL Listed, CE Marked, and CSA Certified approvals, plus additional global validations for cross‑border projects. Designed for Magnum PXR trip units, it integrates with Power Xpert Protection Manager to deliver reliable protection while reducing lifecycle costs and maintenance effort.
Product Information
Extended Description
MPS85N4HEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (NNAABBCC), 85 kA, Four-pole, Fixed horizontal mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS85N4HEAXX2A
UPC
786689636586
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
SABA Listed CCC Marked NEMA Compliant CE Marked
Certifications
CSA Certified KEMA Certified ANSI UL Listed 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
PXR20 LSI
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 - MPS85N4HEAXX2A
Eaton Specification Sheet - MPS85N4HEAXX2A
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: Four-pole, double standard frame with fixed horizontal mounting. Business Impact: Enables standardized installation across panels and motor control centers, saving space and reducing commissioning time. Application: Large electrical rooms and retrofit projects where footprint and alignment matter. Feature: PXR20 LSI trip unit. Business Impact: Improves selectivity and arc-energy control, lowering nuisance trips and enabling faster fault isolation. Application: Critical manufacturing lines and data centers where uptime is essential. Feature: Interrupt rating of 85 kAIC. Business Impact: Higher fault current handling improves system safety and reduces risk of cascading outages. Application: Power distribution with high fault currents and peak demand profiles. Feature: Rated uninterrupted current (Iu) of 5000 A. Business Impact: Supports heavy continuous loads without compromising protection, enhancing equipment longevity. Application: Large motor drives and processing plants. Feature: Global certifications including UL Listed, CE Marked, and CSA Certified. Business Impact: Simplifies multi-region procurement and compliance, reducing project risk and lead times. Application: Regulated industries and international rollouts. Feature: Compatibility with Magnum PXR and Power Xpert Protection Manager. Business Impact: Enables remote monitoring, diagnostics, and protection coordination to reduce downtime and maintenance costs. Application: Factory automation, utilities, and critical infrastructure.
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FAQs
The MPS85N4HEAXX2A uses a fixed horizontal mounting on a double-standard frame, compatible with Magnum PXR assemblies. Ensure the panel supports four-pole, 44.1 in width frames and verify clearance for 16.3 in depth and 16.8 in height. Follow manufacturer wiring diagrams and attach the PXR20 LSI trip unit to enable protection coordination with Power Xpert.
Key ratings include a rated uninterrupted current (Iu) of 5000 A and an interrupt rating of 85 kAIC. These specs indicate the breaker can carry heavy continuous loads and interrupt high fault currents safely, which reduces the risk of gear damage and enhances system reliability in demanding industrial environments.
Yes. The four-pole Magnum PXR unit with PXR20 LSI trip provides fast fault clearance and selective coordination, ideal for motor control centers and data centers. Its high current rating, robust certification package, and compatibility with protection management software support uptime and energy efficiency in mission-critical environments.
The breaker is UL Listed, CE Marked, and CSA Certified, along with additional recognitions from KEMA, ANSI, Lloyd’s Register, DNV GL, and ABS. This diverse certification set reduces procurement risk, simplifies regulatory acceptance across regions, and helps meet industry standards for safety and performance.
Plan for a 16.3 in depth, 16.8 in height, and 44.1 in width footprint, with a 319 lb weight. Use fixed horizontal mounting on a double-standard frame and verify panel clearance. Leverage the PXR20 LSI trip unit and Power Xpert Protection Manager for remote diagnostics and streamlined maintenance, minimizing downtime and total cost of ownership.