Eaton MPSC503HEAXXSW Magnum LV Circuit Breaker - 100 kAIC

Part Number: MPSC503HEAXXSW
MPSC503HEAXXSW
Manufacturer
Eaton
Part number
MPSC503HEAXXSW
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects electrical systems by interrupting fault currents in industrial power distribution. In busy panels, coordinating protection with other devices and maintaining compact, reliable installations can slow commissioning. UL Listed, CE Marked, and CSA Certified, plus multiple global approvals, enable safe deployment across regions, while the Magnum PXR frame supports scalable protection strategies. By streamlining mounting and standardizing components, this breaker helps reduce installation time and ongoing maintenance, and it integrates with Power Xpert Protection Manager for centralized monitoring and arc-flash risk reduction.

Product Information

Extended Description

MPSC503HEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (ABCABC), 100 kA, Three-pole, Fixed horizontal mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC503HEAXXSW
UPC
786689634957
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 CSA Certified Lloyd's Register Certified ANSI KEMA Certified ABS Certified DNV GL Certified
Frame
Double standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Number of poles
Three-pole
Rated uninterrupted current (Iu)
5000 A
Interrupt rating
100 kAIC
Interrupt rating
100 kAIC
Rated uninterrupted current (Iu)
5000 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 - MPSC503HEAXXSW Eaton Specification Sheet - MPSC503HEAXXSW 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: 100 kAIC interrupt rating. Business Impact: Provides high fault current withstand, minimizing equipment damage and unplanned downtime during short-circuit events. Application: Critical motor feeders and high-load distribution paths in manufacturing and data centers. Feature: Rated uninterrupted current (Iu) of 5000 A. Business Impact: Supports large continuous loads without nuisance tripping, enabling stable operation of feeder circuits and control power. Application: Large control panels and process lines with heavy, sustained loads. Feature: Magnum PXR frame with three-pole, fixed horizontal mounting. Business Impact: Facilitates compact, modular installation and straightforward field assembly across existing switchgear populations. Application: Panel builders and OEMs designing scalable protection architectures. Feature: No trip unit on this model. Business Impact: Reduces parts and maintenance complexity while delivering proven protection with centralized coordination from compatible trip units when required. Application: Simple protection schemes or systems using external protection coordination. Feature: Comprehensive certifications and compliance (UL Listed, CE Marked, CSA Certified, plus additional global approvals). Business Impact: Accelerates cross-border deployment, easier regulatory acceptance, and reduced project risk. Application: Multinational facilities and multi-site projects. Feature: Physical dimensions and weight (16.3 in L, 16.8 in H, 31.1 in W; 237 lb). Business Impact: Predictable enclosure planning and handling during installation, with clear space planning for retrofit projects. Application: Plant retrofits, new builds, and modular data-center racks. Feature: Compatibility with Magnum PXR trip units and Power Xpert Protection Manager for future upgrades. Business Impact: Enables seamless upgrade paths and centralized protection monitoring, improving uptime and operational insight. Application: Facilities planning for phased protection enhancements and digital asset management.

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FAQs

The MPSC503HEAXXSW uses fixed horizontal mounting on a Magnum PXR frame and is a three-pole device with a double standard frame. For installation, ensure the mounting surface accommodates the 31.1 in width and attach the unit with appropriate hardware, connect conductors per standard LV circuit breaker practices, and verify alignment before energizing. This model has no trip unit installed, so plan for a compatible unit if required.
This breaker provides a rated uninterrupted current (Iu) of 5000 A and an interrupt rating of 100 kAIC. It is a three-pole device in the Magnum PXR family with fixed horizontal mounting. These ratings support high-demand applications while maintaining short-circuit protection within panel assemblies and switchgear.
Yes. The unit is UL Listed, CSA Certified, and CE Marked, with additional certifications from Lloyd's Register, ANSI, KEMA, ABS, and DNV GL noted in its specifications. It also shows NEMA compliance. These certifications support global deployment and regulatory alignment across North America and international markets.
The MPSC503HEAXXSW is a Magnum PXR frame device with no trip unit installed. It is compatible with Magnum PXR trip units and can be integrated with Power Xpert Protection Manager when paired with a compatible trip unit. This enables centralized protection management and monitoring without sacrificing the existing hardware footprint.
Plan for a footprint of 31.1 in wide, 16.8 in high, and 16.3 in deep, with an approximate weight of 237 lb. This helps ensure proper panel clearance, mounting tolerance, and lifting/handling logistics during installation or retrofit projects.