Eaton MPSC4N4WEAXX2A Magnum LV Breaker - UL 100 kA
Part Number: MPSC4N4WEAXX2A
Quick Summary
The Eaton Magnum low voltage power circuit breaker protects electrical distributions by interrupting fault currents. This unit helps data centers and manufacturing facilities avoid costly downtime caused by short circuits and nuisance trips. It is UL Listed, CSA Certified, and CE Marked, meeting essential safety and regulatory standards for global installations. These certifications support reliable compliance across regions and facilitate documentation for audits. The breaker is designed for Magnum PXR electronic trip units and vertical drawout mounting, enabling straightforward installation in existing switchgear. With Power Xpert Release compatibility and easy access to renewal parts, it delivers predictable protection, reduced maintenance, and a lower total cost of ownership for critical electrical infrastructure.
Product Information
Extended Description
MPSC4N4WEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NNAABBCC), 100 kA, Four-pole, Drawout vertical mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC4N4WEAXX2A
UPC
786689634650
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
NEMA Compliant SABA Listed CCC Marked CE Marked
Certifications
UL Listed CSA Certified ANSI KEMA Certified Lloyd's Register 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 - MPSC4N4WEAXX2A
Eaton Specification Sheet - MPSC4N4WEAXX2A
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 kA interrupting capacity in a four-pole configuration with drawout vertical mounting. Business Impact: Enhanced short-circuit protection minimizes damage to feeders and downstream equipment, reducing downtime and maintenance costs. Application: Ideal for large switchgear assemblies in industrial plants where high fault currents are anticipated and uptime is critical. Feature: PXR20 LSI trip unit compatibility. Business Impact: Improves selective coordination and faster fault isolation, safeguarding critical loads and enabling smoother start-up sequences. Application: Data centers and continuous-process facilities requiring precise protection settings and compatibility with Magnum protection tooling. Feature: Global certifications and compliance (UL Listed, CSA Certified, CE Marked). Business Impact: Simplifies procurement, helps meet regulatory audits, and reduces risk of non-compliance across multiple regions. Application: Cross-border installations and projects with stringent safety requirements. Feature: Magnum form factor with drawout design and Power Xpert Release readiness. Business Impact: Streamlines installation, replacement parts availability, and integration with protection management software for centralized control. Application: Retrofit projects and new builds in automation and power distribution systems. Feature: Large physical footprint with documented dimensions and weight. Business Impact: Ensures proper panel planning and safe handling during maintenance, reducing installation errors. Application: Heavy-duty industrial cabinets and electrical rooms requiring robust enclosures. Feature: Renewal parts and technical resources accessibility. Business Impact: Extends service life, lowers lifecycle costs, and accelerates troubleshooting with readily available guides and papers. Application: Maintenance programs and upgrade projects in facilities and manufacturing facilities.
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FAQs
The MPSC4N4WEAXX2A is designed for Magnum PXR installations and features a drawout vertical mounting that aligns with standard low-voltage cabinet schemas. This compatibility simplifies replacement in existing switchgear and minimizes retrofit risk, while ensuring correct alignment of trip unit interfaces and signaling cables for reliable protection coordination.
Key specs include four-pole construction, 100 kA interrupting capacity, and a 4000 A rating in the Magnum PXR family. The PXR20 LSI trip unit enables advanced protection logic, while the unit’s UL Listed, CSA Certified, and CE Marked status supports global compliance and dependable operation in diverse environments.
This breaker excels in data centers, manufacturing plants, and process industries where reliable fault protection and selective coordination are essential. Its high interrupting capacity and compatibility with Magnum protection tools make it a strong choice for power distribution panels, switchgear, and critical-load feeders.
The device is UL Listed, CSA Certified, and CE Marked, with additional NEMA compliance and CCC/ANSI considerations. These certifications support global procurement, simplify regulatory documentation, and help ensure safety and reliability in multi-region deployments.
Lifecycle advantages include access to renewal parts, comprehensive manuals, and compatibility with Power Xpert Protection Manager for remote monitoring. These elements reduce mean time to repair, extend service life, and lower total cost of ownership by enabling proactive maintenance and streamlined part sourcing.