Eaton MPS8404WEAXX2H Magnum LV Power Breaker - UL Listed

MPS8404WEAXX2H
Manufacturer
Eaton
Part number
MPS8404WEAXX2H
Category

Quick Summary

The Eaton MPS8404WEAXX2H Magnum LV power breaker protects industrial power systems with four poles. Panel builders and maintenance teams often face space constraints, coordination gaps, and costly mis-trips. UL Listed, ANSI, Lloyd's Register, and CSA certifications ensure global compliance and safe operation. With a PXR20 LSI ARMS trip unit and Power Xpert compatibility, it delivers reliable protection, reduced downtime, and easier integration. Designed for high-current environments, it supports future-proof expansions and lowers total cost of ownership. Drawout vertical mounting in the Magnum frame simplifies servicing without taking the entire rack offline. In mission-critical plants, this translates to faster maintenance cycles and improved asset availability. Its 4000 A Iu and 85 kAIC rating support large feeders while maintaining safety and regulatory compliance.

Product Information

Extended Description

MPS8404WEAXX2H Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NNABCABC), 85 kA, Four-pole, Drawout vertical mounting, PXR20 LSIAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8404WEAXX2H
UPC
786689628598
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
NEMA Compliant CCC Marked SABA Listed CE Marked
Certifications
KEMA Certified UL Listed ANSI Lloyd's Register Certified CSA 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 ARMS
Number of poles
Four-pole
Rated uninterrupted current (Iu)
4000 A
Interrupt rating
85 kAIC
Interrupt rating
85 kAIC
Rated uninterrupted current (Iu)
4000 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 - MPS8404WEAXX2H Eaton Specification Sheet - MPS8404WEAXX2H 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 Magnum PXR frame with drawout vertical mounting enables scalable protection for high-current feeders. Business Impact: Simplifies panel integration, reduces downtime during maintenance, and supports future upgrades within existing frames. Application: Ideal for large distribution cabinets in process industries and manufacturing lines. Drawout vertical mounting also reduces torque on connections during cycling. Feature: 4000 A Iu with 85 kAIC interrupt rating provides robust short-circuit protection. Business Impact: Limits arc energy exposure, protects downstream equipment, and lowers project risk through proven fault handling. Application: Critical feeders for motors, pumps, and conveyors in heavy industrial environments. Feature: PXR20 LSI ARMS trip unit offers advanced protection and selective coordination. Business Impact: Reduces nuisance trips and improves uptime by ensuring only the affected section trips. Application: Suited for zones with interlocking and coordinated protection strategies. Feature: UL Listed, ANSI, CE Marked, and other certifications accompany the product. Business Impact: Ensures global compliance, smoother procurement, and regulatory readiness across markets. Application: Government and multinational facilities needing compliant protection devices. Feature: Power Xpert Protection Manager compatibility enables remote monitoring and firmware updates. Business Impact: Improves diagnostics, asset health management, and maintenance planning. Application: Digitalized plants with integrated protection management. Feature: Drawout vertical mounting and a double standard frame provide installation flexibility. Business Impact: Speeds commissioning, reduces spare parts diversity, and supports phased capacity expansions. Application: Retrofit projects and new builds needing flexible breaker positioning. Feature: Comprehensive data package includes 4000 A Iu, 85 kAIC, and dimensions 16.3 in D, 16.8 in H, 44.1 in W. Business Impact: Enables precise space planning and lifecycle budgeting for large switchgear. Application: Panel designers and equipment integrators adding Magnum PXR protection.

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FAQs

The MPS8404WEAXX2H uses a four-pole Magnum PXR frame with drawout vertical mounting, designed for standard panel depths and common busbar connections. Its double standard frame enables straightforward retrofits into existing switchgear and distribution cabinets, reducing panel modification time and risk. Installation best practices include aligning with compatible protection schemes and verifying LSI ARMS trip unit settings for coordinated protection strategies.
Key specifications include rated uninterrupted current Iu of 4000 A and an interrupt rating of 85 kAIC. The device is four-pole and uses the PXR20 LSI ARMS trip unit for advanced protection logic. These metrics support high-load feeders and robust protection against short-circuit events, contributing to improved system reliability and reduced arc energy exposure.
Ideal for motor feeders, large distribution panels, and switchgear in manufacturing, mining, and heavy process industries. Its high Iu and 85 kAIC rating accommodate large feeders, while the four-pole configuration supports complex protection schemes. The unit is also suitable for retrofit projects where Magnum PXR protection needs to integrate with existing protection management infrastructure.
This breaker is UL Listed, ANSI, Lloyd's Register Certified, CSA Certified, DNV GL Certified, ABS Certified, and CE Marked, along with NEMA compliance and CCC marking. These certifications support global procurement, regulatory compliance, and safe operation across diverse markets, reducing sourcing risk and expediting approvals for multinational projects.
The Magnum PXR integration supports remote monitoring and diagnostics via Power Xpert Protection Manager, enabling proactive maintenance and faster fault resolution. Zone selective coordination reduces nuisance trips, while drawout mounting and standard frame design simplify parts stocking and spare-parts management. Overall, this translates to lower downtime, predictable maintenance, and a favorable total cost of ownership in long-term deployments.