Eaton MPS8403MEAXX2F Magnum Breaker - 85 kAIC

MPS8403MEAXX2F
Manufacturer
Eaton
Part number
MPS8403MEAXX2F
Category

Quick Summary

Eaton Magnum low voltage circuit breaker MPS8403MEAXX2F provides reliable protection for three-pole power distribution panels. Engineers often struggle with coordinating protection and maintenance in complex feeder arrays. It carries CE marking and UL listing, with CSA, ABS and Lloyd's Register certifications to support global compliance. The drawout vertical design with motorized racking and the PXR20 LSIGAM trip unit streamline installation, testing, and maintenance. This combination helps maximize uptime, reduce maintenance costs, and meet industry standards for safety and performance.

Product Information

Extended Description

MPS8403MEAXX2F Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (ABCABC), 85 kA, Three-pole, Drawout vertical with motorized racking mounting, PXR20 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8403MEAXX2F
UPC
786689628444
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
NEMA Compliant SABA Listed CCC Marked CE Marked
Certifications
UL Listed Lloyd's Register Certified CSA Certified KEMA Certified ANSI ABS Certified DNV GL Certified
Frame
Double standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Trip Type
PXR20 LSIG ARMS
Number of poles
Three-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 - MPS8403MEAXX2F Eaton Specification Sheet - MPS8403MEAXX2F 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: Drawout vertical mounting with motorized racking enables quick insert/remove and safe maintenance. Benefit: Reduces downtime and improves technician safety during routine testing and replacement. Application: Suitable for large switchgear, distribution panels, and process lines where frequent maintenance occurs. Feature: Magnum PXR trip unit with LSIG ARMS delivers precise protection coordination. Benefit: Enhances selectivity, minimizes nuisance trips, and improves overall system reliability. Application: Industrial plants requiring accurate arc fault and protective relay coordination. Feature: 4000 A rated uninterrupted current (Iu). Benefit: Supports high-current feeders without compromising protection, reducing the need for multiple devices in parallel. Application: Heavy-load feeders in manufacturing and data centers. Feature: 85 kAIC interrupt rating. Benefit: Robust short-circuit protection lowers the risk of arc flash and equipment damage. Application: Critical process lines and main bus feeders in OEM facilities. Feature: Three-pole, double standard frame design. Benefit: Compatible with standard panels and simplifies retrofit or expansion projects. Application: New installations and modernization of legacy systems. Feature: Comprehensive certifications and compliances (UL Listed, CE Marked, CSA, ABS, Lloyd’s Register, etc.). Benefit: Supports global procurement and regulatory compliance, reducing risk in multinational projects. Application: Global deployments across manufacturing, data centers, and infrastructure projects.

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FAQs

Plan for a drawout vertical mounting with motorized racking compatible with Magnum PXR units. Ensure adequate panel space, proper clearance, and alignment with UL/CE requirements. Verify frame and pole configuration (three-pole, double standard) for your panel.
It offers a rated uninterrupted current (Iu) of 4000 A and an interrupt rating of 85 kAIC, enabling safe handling of large feeders and minimizing fault energy transfer during short circuits.
Yes. The device carries CE marking and UL listing, plus CSA, ABS, and Lloyd’s Register certifications, supporting global procurement and regulatory compliance.
The breaker uses a Magnum PXR20 LSIG ARMS trip unit (PXR20 LSIGAM). This enables precise protection coordination, faster fault isolation, and streamlined protection management with Power Xpert software integration.
Ideal for three-pole distribution panels in manufacturing, data centers, and process facilities where high current, reliable protection, and safe maintenance are critical; its drawout design improves serviceability and uptime.