Eaton MPS8404HEAXX2Q Magnum low voltage power circuit breaker - UL Listed

MPS8404HEAXX2Q
Manufacturer
Eaton
Part number
MPS8404HEAXX2Q
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects electrical systems by interrupting fault currents in industrial power distribution panels. But selecting the right trip unit, frame size, and coordination can delay commissioning and increase downtime. This unit is CE marked and UL listed, with CSA certification and NEMA compliance supporting global installations. Designed for Power Xpert Release (PXR) protection and flexible mounting, it helps engineers simplify protection schemes, improve reliability, and reduce maintenance costs across manufacturing facilities. With global approvals and standardized interfaces, teams can deploy across sites without redesigns. And the product's robust mechanical design supports long service life in harsh industrial environments.

Product Information

Extended Description

MPS8404HEAXX2Q Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NNABCABC), 85 kA, Four-pole, Fixed horizontal mounting, PXR25 LSIAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8404HEAXX2Q
UPC
786689628475
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CCC Marked CE Marked SABA Listed NEMA Compliant
Certifications
UL Listed ANSI CSA Certified KEMA Certified Lloyd's Register 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 - MPS8404HEAXX2Q Eaton Specification Sheet - MPS8404HEAXX2Q 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
The MPS8404HEAXX2Q delivers high fault-current capability with a 4000 A rating and an 85 kA short-circuit withstand, enabling reliable protection for large motor loads and critical manufacturing equipment. This translates to fewer nuisance trips and reduced downtime, which directly improves plant productivity and maintenance planning. Its Power Xpert Release trip unit (PXR25 LSIAM) provides precise, adjustable protection curves, improving selective coordination and allowing operators to fine-tune settings for motors and feeders in complex power distribution schemes. Four-pole construction with a fixed horizontal mounting simplifies panel integration, speeds up commissioning, and delivers consistent phasing in multi-bus configurations used in data centers and process plants. The unit’s broad compliance footprint — UL Listed, CE Marked, ANSI/CSA certified, with NEMA compatibility — minimizes regulatory hurdles and accelerates global installations. The Magnum design supports easy retrofit and renewal parts alignment, reducing total cost of ownership for lifecycle maintenance. Its compact footprint, 16.3 in depth, 16.8 in height, and 44.1 in width, helps optimize panel real estate while maintaining safe clearance and service access. Documentation and application notes for zone selective interlocking and selective coordination further aid engineers during commissioning, testing, and change management in industrial facilities.

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FAQs

Yes. The MPS8404HEAXX2Q is designed to work with Eaton Power Xpert Protection Manager when paired with the PXr trip unit. It supports centralized protection management, remote configuration, and event logging to optimize protection strategies across facilities. For deployment, ensure the PXr software version aligns with the trip unit capabilities and follow the Quick Start Guide to set up communications and alarms.
Fixed horizontal mounting simplifies alignment within control panels and reduces installation time. Ensure adequate clearance for bus bars and wiring, verify panel depth and mounting rails suit the 16.3 in depth and 44.1 in width, and confirm accessibility for maintenance. Purchase of compatible mounting accessories and proper torque on mounting hardware will maintain stable operation and accurate trip sensing.
Key specs include a 4000 A current rating and an 85 kA short-circuit rating, four poles, and the PXR25 LSIAM trip unit. Approvals cover UL Listed, CE Marked, ANSI CSA Certified, and NEMA Compliant, with additional certifications from KEMA, Lloyd’s Register, ABS, and DNV GL. These certifications support global installation, regulatory compliance, and safe operation in diverse environments.
Yes. The Magnum PXR trip unit supports selective coordination with configurable protection curves, and Eaton provides guidance on zone selective interlocking as documented in the ZSI papers. This enables precise fault isolation and reduced arc energy. For best results, reference application notes and coordinate device settings with the protection manager during commissioning.
Lifecycle ROI benefits come from long service life, availability of renewal parts, and robust diagnostic capabilities through the Power Xpert ecosystem. The unit’s modular trip unit and documented maintenance procedures enable planned replacements and firmware updates, minimizing unscheduled downtime. Keep up with recommended renewal parts and software updates to sustain reliability and reduce total cost of ownership.