Eaton MPS8403HEAXX2F Magnum LV Circuit Breaker - UL Listed

MPS8403HEAXX2F
Manufacturer
Eaton
Part number
MPS8403HEAXX2F
Category

Quick Summary

Eaton MPS8403HEAXX2F is a Magnum LV circuit breaker for industrial control panels. Engineers struggle with miscoordination and nuisance trips; this unit’s PXR20 LSIGAM trip and high interrupting capacity address that. CE Marked, UL Listed, and CSA Certified ensure global compliance and safe operation across equipment. In addition, its fixed horizontal mounting and three-pole design support quick installation and robust protection with Power Xpert readiness for digital protection management.

Product Information

Extended Description

MPS8403HEAXX2F Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (ABCABC), 85 kA, Three-pole, Fixed horizontal mounting, PXR20 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8403HEAXX2F
UPC
786689628376
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
CE Marked SABA Listed CCC Marked NEMA Compliant
Certifications
CSA Certified UL Listed KEMA Certified Lloyd's Register Certified ANSI 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 - MPS8403HEAXX2F Eaton Specification Sheet - MPS8403HEAXX2F 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: Three-pole design and fixed horizontal mounting; Business Impact: simplifies cabinet integration and improves protection coordination; Application: panelboards and motor control centers. Feature: Icu of 85 kA and a 4000 A frame; Business Impact: withstands high fault currents and supports large-scale installations; Application: process facilities and mining environments. Feature: PXR20 LSIGAM trip unit; Business Impact: enables advanced protection logic, event capture, and seamless compatibility with Power Xpert Protection Manager; Application: MCCs and critical process loads. Feature: Certifications and regulatory compliance; Business Impact: reduces procurement risk and streamlines global deployments; Application: any region requiring CE UL CSA compliance. Feature: Comprehensive documentation and training resources; Business Impact: shortens design and commissioning time; Application: engineering teams and maintenance planning.

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FAQs

The MPS8403HEAXX2F uses fixed horizontal mounting and is a three-pole device with dimensions suited for panel integration. With a length/depth of 16.3 in, height of 16.8 in, and width of 31.1 in, install in standard electrical enclosures or MCCs while aligning with bus bars and ensuring proper clearance for cooling and wiring. The PXR20 LSIGAM trip unit simplifies wiring and integration with protection management systems.
This breaker belongs to the Magnum PXR family with a 4000 A frame and an 85 kA short-circuit interrupting capacity (Icu). It is a three-pole device equipped with the PXR20 LSIGAM trip unit, enabling advanced protection logic and coordination for demanding industrial applications such as motors and process loads.
The MPS8403HEAXX2F is CE Marked and UL Listed, with CSA Certification also noted in its specifications. These certifications ensure global regulatory compliance, safety conformity, and acceptance across major markets, reducing sourcing risk and facilitating international projects in panels, MCCs, and control cabinets.
Yes. The breaker uses the PXR20 trip unit from the Magnum PXR family, designed for compatibility with Eaton Power Xpert Protection Manager. Configuration relates to protection schemes, metering, and event logging via compatible software tools. Resources such as the quick start guide and Protection Manager installers are available in the downloads section to accelerate setup.
Ideal for panelboards and motor control centers in high-demand environments, it delivers robust fault protection (85 kA Icu), reliable coordination (PXR20), and global certifications (UL/CE/CSA). The result is reduced nuisance trips, faster fault isolation, easier compliance, and lower total cost of ownership through improved uptime and predictive maintenance readiness.