Eaton MPSC503MEAXX2Q Magnum low voltage breaker - UL Listed

Part Number: MPSC503MEAXX2Q
MPSC503MEAXX2Q
Manufacturer
Eaton
Part number
MPSC503MEAXX2Q
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker protects electrical systems in commercial and industrial drives and switchgear. Engineers often struggle with nuisance trips, lengthy maintenance, and retrofit challenges when upgrading legacy protection schemes. This unit is UL Listed, CE Marked, and NEMA compliant, with additional CSA, Lloyd's Register, and DNV GL certifications that support global installation and compliance. Designed to work with Power Xpert Release trip units, it integrates seamlessly with Magnum PXR protection management, delivering advanced arc-energy control and diagnostics. By enabling easy maintenance, scalable protection, and robust coordination with selective-tripping strategies, it helps shorten downtime and reduce life-cycle costs for panel builders and OEMs.

Product Information

Extended Description

MPSC503MEAXX2Q Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (ABCABC), 100 kA, Three-pole, Drawout vertical with motorized racking mounting, PXR25 LSIAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC503MEAXX2Q
UPC
786689635435
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
CCC Marked CE Marked NEMA Compliant SABA Listed
Certifications
Lloyd's Register Certified UL Listed CSA Certified KEMA 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 x32 22.06 1 Power Xpert Protection Manager x32 22.06 1 Eaton Specification Sheet - MPSC503MEAXX2Q Eaton Specification Sheet - MPSC503MEAXX2Q Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Safer by design: arc energy reduction techniques Safer by design: arc energy reduction techniques Safer by design: arc energy reduction techniques
Feature: Magnum low voltage power circuit breaker uses the Power Xpert Release trip unit PXR25 LSIAM, delivering adjustable protection curves, selective coordination, and arc-energy control. Business Impact: This results in improved protection accuracy, fewer nuisance trips, and longer equipment life in demanding industrial environments. Application: Ideal for panel boards, switchgear assemblies, and machine controls in manufacturing and process industries. Feature: Drawout vertical mounting with motorized racking simplifies installation, maintenance, and risk management. Business Impact: Speeds commissioning, reduces technician exposure, and enables safe, hands-off rack-and-reconnect cycles during maintenance. Application: Well-suited for retrofit upgrades and new builds in data centers, food and beverage lines, and heavy industry. Feature: Up to 100 kA short-circuit rating with a 5000 A frame provides robust protection against high fault currents. Business Impact: Enhances system reliability, minimizes downstream equipment damage, and supports selective protection architectures. Application: Critical power distribution in process plants, pumping stations, and large motor drives. Feature: Three-pole construction with precise dimensions (16.3 in depth, 16.8 in height, 31.1 in width) and 237 lb weight; course: fixed packaging for fit planning. Business Impact: Aids enclosure sizing, rack layouts, and shipping logistics while maintaining consistent operational clearances. Application: OEM switchgear, MCCs, and panel assemblies. Feature: Broad certifications including UL Listed, CE Marked, NEMA compliant, CSA Certified, and DNV GL; Compliances: CCC Marked and SABA Listed. Business Impact: Enables global deployment and reduces risk in multinational projects. Application: Suitable for international suppliers and projects with strict compliance requirements. Feature: Compatibility with Power Xpert Protection Manager software for remote monitoring and diagnostics. Business Impact: Centralized protection management reduces field service visits and accelerates response to faults. Application: Data centers, manufacturing lines, and multi-site installations.

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FAQs

This unit is a three-pole drawout breaker with motorized racking for safe, fast installation in switchgear and panelboards. Verify proper alignment with drawout contacts, connection to bus, and actuator clearance. Plan for the 16.3 in depth, 16.8 in height, and 31.1 in width footprint, plus the 237 lb weight for mounting and maintenance access.
The PXR25 LSIAM trip unit provides adjustable protection curves, arc-energy reduction, and enhanced diagnostics. This improves protection accuracy, reduces nuisance trips, and supports reliable operation in high-load environments. Coupled with selective coordination configurations, it enables safer, more predictable protection for machines and processes.
Yes, the Magnum MPSC503MEAXX2Q supports zone selective interlocking (ZSI) and can coordinate with upstream devices. Using protection manager configurations, you can define tripping zones to isolate faults quickly while minimizing unnecessary disconnections, enhancing safety and uptime in complex power distributions.
The breaker carries UL Listed, CSA Certified, CE Marked, NEMA compliant, Lloyd's Register Certified, DNV GL Certified, ANSI, ABS Certified, and KEMA Certified approvals, with CCC Marked compliance as applicable. This broad certification footprint supports multinational procurement and codes-compliant installations across regions.
Motorized racking enables safe, rapid maintenance and easy replacement without rewiring. Integration with Power Xpert Protection Manager delivers centralized monitoring, diagnostics, and tuning, reducing field service visits and accelerating fault response. This combination lowers lifecycle costs and improves reliability in multi-site or mission-critical installations.