Eaton MPSC4N3WEAXX2A Magnum breaker - 100 kAIC

Part Number: MPSC4N3WEAXX2A
MPSC4N3WEAXX2A
Manufacturer
Eaton
Part number
MPSC4N3WEAXX2A
Category

Quick Summary

Magnum low voltage power circuit breaker is Eaton’s robust protection solution for industrial power distribution. Engineers often wrestle with nuisance trips, improper coordination, and lengthy commissioning when upgrading legacy gear, which drives unplanned downtime and higher maintenance costs. This unit carries UL Listed, CE Marked, and CSA Certified marks, with additional certifications from Lloyd's Register and KEMA, reflecting broad regulatory acceptance. Designed for Magnum PXR trip units and Power Xpert Protection Manager compatibility, it supports scalable protection strategies across sites. The combination of a double-standard frame, three poles, and a drawout vertical mounting delivers installation efficiency and ease of service, helping procurement teams reduce lifecycle costs while maintaining strict safety and compliance standards.

Product Information

Extended Description

MPSC4N3WEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (AABBCC), 100 kA, Three-pole, Drawout vertical mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC4N3WEAXX2A
UPC
786689633530
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
CCC Marked NEMA Compliant CE Marked SABA Listed
Certifications
KEMA Certified ANSI CSA Certified Lloyd's Register Certified UL Listed DNV GL Certified ABS Certified
Frame
Double standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Trip Type
PXR20 LSI
Number of poles
Three-pole
Rated uninterrupted current (Iu)
4000 A
Interrupt rating
100 kAIC
Interrupt rating
100 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 - MPSC4N3WEAXX2A Eaton Specification Sheet - MPSC4N3WEAXX2A 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
Three-pole, double-standard frame with drawout vertical mounting enables flexible integration into existing switchgear and simplifies field servicing, reducing install time and footprint. Business impact: faster commissioning, lower labor costs, and streamlined retrofits in new or legacy ecosystems. Application: industrial control panels and power distribution centers requiring reliable protection with minimal downtime. The unit delivers a 4000 A Iu rating and 100 kAIC interrupt capability, ensuring fast fault clearance and improved system availability. Business impact: higher safety margins and reduced risk of arc flash events in high-demand environments. Application: data centers, manufacturing floors, and process facilities with heavy transient loads. PXR20 LSI electronic trip unit provides precise, zone-selective protection, improving coordination and reducing nuisance trips. Application: critical motors and feeders with strict protection coordination. Business impact: lower maintenance frequency and extended equipment life. Compatibility with Power Xpert Protection Manager enables centralized protection management and asset health monitoring. Application: enterprise-wide protection strategy and remote diagnostics. Business impact: better uptime metrics and informed procurement decisions. Certification and compliance are supported by UL Listed, CE Marked, CSA Certified, and additional certifications such as Lloyd’s Register and KEMA. Business impact: global regulatory alignment and audit readiness for multi-site operations. The product’s rugged build, modular trip unit, and renewal parts ecosystem enable predictable maintenance cycles and long-term cost-of-ownership advantages. Application: ongoing lifecycle support for mission-critical installations.

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FAQs

This three-pole Magnum unit is designed for drawout vertical mounting and a double-standard frame, which simplifies panel retrofits and upgrades. Ensure proper rail alignment, secure mounting with manufacturer torque specs, and verify clearance for access to the PXR20 LSI trip unit. Verify compatibility with your existing switchgear and Power Xpert Protection Manager for ongoing monitoring.
Key specs include rated uninterrupted current (Iu) of 4000 A and an interrupt rating of 100 kAIC. The trip unit is PXR20 LSI, providing precise coordination. With a three-pole configuration and a double-standard frame, the breaker supports robust protection in heavy-duty feeders. Use these figures to model fault currents and ensure proper coordination with upstream protection devices.
Yes. The Magnum MPSC4N3WEAXX2A is designed for high-demand power distribution environments. Its 4000 A Iu and 100 kAIC ratings support reliable fault clearance, while UL Listed, CE Marked, and CSA Certified compliance help meet industry standards. Its PXR20 LSI trip unit and Power Xpert compatibility enable scalable protection strategies suitable for data centers and critical utility infrastructure.
The device carries UL Listed, CE Marked, and CSA Certified marks, with additional validation from Lloyd’s Register and KEMA. These certifications support compliance across North America and Europe, aligning with multi-site audit requirements. The product also lists CCC Marked and SABA Listed among compliances, indicating broad regulatory acceptance in multiple regions.
The Magnum breaker supports lifecycle-cost efficiency through durable construction, a modular PXR20 LSI trip unit, and compatibility with Power Xpert Protection Manager for remote diagnostics. Zone selective interlocking options and available renewal parts reduce maintenance downtime and extend equipment life. Overall, improved uptime and streamlined asset management translate to lower total cost of ownership.