Eaton MPSC403MEAXX2Q Low Voltage Power Breaker - UL Listed

Part Number: MPSC403MEAXX2Q
MPSC403MEAXX2Q
Manufacturer
Eaton
Part number
MPSC403MEAXX2Q
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects large electrical feeders in industrial motor control centers. Engineers often struggle with configuring trip units, coordinating protection across feeders, and minimizing downtime during maintenance. This device carries CE Marked, UL Listed, and NEMA Compliant certifications, plus ANSI and CSA confirmations for global facilities. By combining a Magnum PXR trip unit with a drawout vertical mounting, it delivers precise protection, faster maintenance, and easy integration with Power Xpert Protection Manager for monitoring and coordination. The result is improved uptime, safer operation, and a lower total cost of ownership, with flexibility to support selective coordination across critical processes.

Product Information

Extended Description

MPSC403MEAXX2Q Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 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
MPSC403MEAXX2Q
UPC
786689634711
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
CE Marked CCC Marked NEMA Compliant SABA Listed
Certifications
Lloyd's Register Certified ANSI CSA Certified UL Listed KEMA 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 - MPSC403MEAXX2Q Eaton Specification Sheet - MPSC403MEAXX2Q 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: Magnum PXR25 LSIAM trip unit enables precise current-based protection and advanced coordination. Business Impact: Reduces nuisance trips and improves reliability in high-demand motor loads. Application: Ideal for motor control centers and large distribution panels where selective coordination is required. Feature: Drawout vertical mounting with motorized racking simplifies maintenance and swap-outs. Business Impact: Shortens maintenance windows and minimizes live-tandem downtime. Application: Retrofit projects and new installations in production lines with tight shutdown schedules. Feature: 4000 A current rating with 100 kA interrupting capability provides robust fault handling. Business Impact: Enhances safety margins and ensures compliance with heavy-duty distribution requirements. Application: Heavy-mault feeder protection in manufacturing plants and process facilities. Feature: Double frame, three-pole design with a 16.3 in depth, 16.8 in height, and 31.1 in width. Business Impact: Optimizes cabinet real estate and simplifies panel layout for complex distribution schemes. Application: Large switchgear and compact MCCs where space is at a premium. Feature: Broad certifications including UL Listed, CE Marked, and NEMA Compliant. Business Impact: Global applicability and reduced regulatory risk. Application: Facilities across North America and Europe requiring standard-compliant protection. Feature: Compatibility with Power Xpert Protection Manager for protective-relay integration. Business Impact: Enables remote monitoring, event logging, and faster fault diagnosis. Application: Data-driven maintenance programs and remote diagnostics across multiple lines.

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FAQs

The MPSC403MEAXX2Q uses a drawout vertical mounting with motorized racking and a three-pole frame, designed for seamless replacement in existing panels. Its standard Magnum frame and MPSC catalog compatibility support straightforward retrofits and new builds, reducing cabinet rework and enabling quick commissioning alongside existing Eaton or third-party protective accessories.
The PXR25 LSIAM trip unit offers electronic protection with settings optimized for selective coordination, arc energy management, and precise overcurrent protection. It supports configurable pickup, time delays, and monitoring features aligned with universal protection schemes, enabling tailored coordination between upstream and downstream devices to minimize fault impact.
Yes. With 4000 A capacity, 100 kA interrupting rating, three-pole drawout construction, and motorized racking, this breaker is well-suited for large MCCs and motor feeders in manufacturing, processing, and packaging environments where reliability and fast maintenance are critical.
This unit carries UL Listed, CE Marked, and NEMA Compliant certifications, with additional ANSI and CSA recognition. These certifications ensure regulatory compliance across both North American and European facilities, simplifying procurement, testing, and acceptance in global projects.
Power Xpert Protection Manager integration enables centralized protection management, event logging, and remote diagnostics. This reduces on-site troubleshooting time, accelerates fault isolation, and improves preventive maintenance planning, delivering measurable ROI through increased uptime and lower maintenance labor costs.