Eaton MPS8404MEAXX2A Magnum LV CB - PXR20 LSI trip unit

MPS8404MEAXX2A
Manufacturer
Eaton
Part number
MPS8404MEAXX2A
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects industrial electrical systems in motor control and distribution. This rugged four-pole, drawout unit is engineered for quick rack mounting and dependable protection in demanding environments. A common pain point is inaccessible trip data and lengthy configuration during commissioning, which this model helps alleviate with its motorized racking and Power Xpert Release (PXR) trip technology. With UL Listed, CE Marked, and CSA Certified approvals, plus additional KEMA, ANSI, and Lloyd’s Register certifications, it meets global standards for safety and performance. By pairing robust protection with a scalable protection platform, it delivers faster set-up, easier maintenance, and better coordination across feeders and motors.

Product Information

Extended Description

MPS8404MEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NNABCABC), 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
MPS8404MEAXX2A
UPC
786689628628
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
KEMA Certified CSA Certified ANSI Lloyd's Register 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 - MPS8404MEAXX2A Eaton Specification Sheet - MPS8404MEAXX2A Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Cyber security white paper Cyber security white paper Cyber security white paper
Feature: Power Xpert Release (PXR) trip unit enables precise, zone-based protection. Benefit: Improves protection coordination and reduces nuisance trips, translating to higher overall system uptime and fewer unplanned outages in critical production lines. Application: Ideal for complex motor control centers and process lines where reliability is paramount. Feature: Four-pole, 4000 A frame with 85 kA interrupting capacity. Benefit: Supports heavy inrush and high fault currents without compromising selective tripping, delivering safer, more reliable power distribution. Application: Heavy manufacturing, pumps, and large drive systems where fault demand is high. Feature: Drawout vertical mounting with motorized racking. Benefit: Speeds installation and maintenance, minimizes manual handling, and enhances safety during breaker swaps. Application: Panel modernization, upgrades, and routine maintenance on machine floors. Feature: Wide certification suite (UL Listed, CE Marked, CSA Certified, KEMA, ANSI, Lloyd’s Register, ABS). Benefit: Simplifies cross‑border procurement and compliance, reducing red tape and supplier audits. Application: Global deployments in automotive, food & beverage, and packaging lines. Feature: Zone selective interlocking and compatible documentation. Benefit: Enables safer, more predictable tripping sequences and clearer maintenance guidance. Application: Complex protection schemes in multi-feed systems and critical electrical rooms.

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FAQs

Yes. This unit features drawout vertical mounting with motorized racking and uses the PXR20 LSI trip unit, enabling seamless integration with Power Xpert Protection Manager for monitoring, coordination, and simplified commissioning across motor control centers.
This is a four-pole breaker with a 4000 A frame and an 85 kA short-circuit interrupting capacity. It is designed to handle heavy motor loads and high fault currents while maintaining precise protection coordination in feeder and motor circuits.
The device is UL Listed, CE Marked, and CSA Certified, with additional certifications including KEMA, ANSI, Lloyd’s Register, and ABS. It is also listed as SABA and NEMA compliant, supporting global procurement and deployment across regions.
Ideal for industrial motor control centers, heavy machinery, and large distribution panels where reliable protection, fast maintenance, and accurate tripping are critical. Its four-pole design and PXR20 LSI trip unit pair well with high-demand processes and demanding environments.
Motorized racking and a vertical drawout design streamline breaker swaps and maintenance, reducing downtime. The PXR20 LSI trip unit enhances protection logic, while the extensive certification set simplifies audits and cross-border installations.