Eaton MPS8404HEAXX2S Magnum breaker - UL Listed

MPS8404HEAXX2S
Manufacturer
Eaton
Part number
MPS8404HEAXX2S
Category

Quick Summary

Eaton Magnum low voltage circuit breaker is designed to protect electrical feeders and motor circuits in large industrial facilities. In demanding plants, nuisance trips and protection miscoordination can cause unexpected downtime, costly repairs, and reduced process reliability. This model carries UL Listed, ANSI, and CE certifications to meet global electrical codes and panel standards, supporting safe, compliant installations across regions. Leveraging a Power Xpert Release compatible PXR25 LSIGAM trip unit and fixed horizontal mounting, it delivers precise overload and short-circuit protection, faster fault diagnostics, and simpler wiring for panel builders. The combination translates into improved uptime, lower maintenance costs, and stronger protection for critical motors and feeders in manufacturing, water treatment, and processing environments.

Product Information

Extended Description

MPS8404HEAXX2S Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NNABCABC), 85 kA, Four-pole, Fixed horizontal mounting, PXR25 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8404HEAXX2S
UPC
786689628482
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 NEMA Compliant CCC Marked
Certifications
UL Listed Lloyd's Register Certified ANSI KEMA Certified CSA 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 - MPS8404HEAXX2S Eaton Specification Sheet - MPS8404HEAXX2S 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 1: 4000 A frame with an 85 kA interrupting rating provides robust fault current handling, protecting feeders and large motors while reducing the risk of cascading failures. Business impact: higher system availability and less equipment damage during faults. Application: main feeders in manufacturing lines and heavy-load panelboards. Feature 2: PXR25 LSIGAM trip unit enables adjustable protection curves and advanced coordination, improving selectivity and diagnostics. Business impact: fewer nuisance trips and easier maintenance planning. Application: motor star-delta protection and process control cabinets. Feature 3: Four-pole design with fixed horizontal mounting supports compact, space-efficient installations and straightforward wiring. Business impact: faster panel build-out and reduced installation time. Application: switchgear and control panel assemblies. Feature 4: Large frame with 4000 A capacity and 85 kA withstand rating enhances system reliability in high-current environments. Business impact: improved uptime for critical lines and aligns with selective coordination strategies. Application: data centers, OEM machinery, and plant-wide protection. Feature 5: Comprehensive compliance and certifications including UL Listed, ANSI, CE, SABA, and NEMA/CCC mark support regulatory acceptance and cross-border use. Business impact: smoother procurement, faster approvals, and global deployments. Application: multinational facilities and regulated industries. Feature 6: Compatibility with Magnum PXR trip units and Power Xpert Protection Manager enables remote monitoring and protection management. Business impact: proactive maintenance insights and streamlined lifecycle optimization. Application: large-scale plants and panel builders seeking digital protection visibility.

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FAQs

Plan for a fixed horizontal mounting installation of the four-pole MPS8404HEAXX2S, confirming panel clearance and space for the 44.1 in width and 16.8 in height. Ensure correct alignment with neighboring devices, verify enclosure interior dimensions, and integrate the PXR25 LSIGAM trip unit wiring for clean fault sensing. The unit’s 319 lb weight should factor into crane or lifting procedures during installation, and ensure compliance with local wiring codes (CE/NEMA/UL) during mounting.
The PXR25 LSIGAM trip unit provides adjustable protection curves and advanced coordination, enabling selective tripping that isolates faults without unnecessary outages. This improves motor protection and reduces nuisance trips. In practice, you’ll achieve tighter coordination with downstream devices, quicker fault identification, and easier protection management within your Power Xpert ecosystem.
Yes. With an 85 kA interrupting rating and a 4000 A frame, this breaker supports selective coordination strategies in high-current installations. By aligning trip settings and coordinating with downstream protective devices, you can minimize system-wide outages and protect critical loads while maintaining safe, code-compliant operation.
The MPS8404HEAXX2S carries UL Listed, ANSI, and CE certifications, plus SABA, NEMA, CCC markings among others. These attest to safety, performance, and international acceptance, simplifying procurement for multinational facilities and ensuring compliance with regional electrical codes, installation standards, and regulatory requirements.
Magnum PXR breakers integrate with Protection Manager software for remote monitoring, diagnostics, and lifecycle management, enabling proactive maintenance and faster fault resolution. The robust protection reduces unplanned downtime, extends equipment life, and lowers total cost of ownership by decreasing repair frequency and enabling data-driven maintenance scheduling.