Eaton MPSC4A4WEAXX2S Magnum LV Circuit Breaker - UL Listed

Part Number: MPSC4A4WEAXX2S
MPSC4A4WEAXX2S
Manufacturer
Eaton
Part number
MPSC4A4WEAXX2S
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker provides reliable overcurrent protection for industrial electrical distribution. Engineers often face nuisance trips and coordination challenges in motor control centers, especially during panel retrofit or expansion. UL Listed, CE Marked, and NEMA-compliant configurations ensure global safety and interoperability across markets. This solution pairs Power Xpert Release trip units with drawout vertical mounting to streamline maintenance, improve trip coordination, and reduce lifecycle costs in panelboards and MCCs.

Product Information

Extended Description

MPSC4A4WEAXX2S Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NABCNABC), 100 kA, Four-pole, Drawout vertical mounting, PXR25 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC4A4WEAXX2S
UPC
786689634940
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
NEMA Compliant CE Marked SABA Listed CCC Marked
Certifications
ANSI CSA Certified Lloyd's Register Certified KEMA Certified UL Listed DNV GL Certified ABS 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 Magnum PXR low voltage power circuit breakers user manual Magnum PXR low voltage power circuit breakers user manual Magnum PXR low voltage power circuit breakers user manual 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 - MPSC4A4WEAXX2S Eaton Specification Sheet - MPSC4A4WEAXX2S 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: Four-pole, drawout vertical mounting with a double-standard frame supports large, space-efficient power distribution. Business Impact: Enables quick breaker replacements with minimal wiring changes, reducing downtime during maintenance or upgrades. Application: Suitable for large motor control centers and feeder circuits in manufacturing environments. Feature: Power Xpert Release (PXR) trip unit integration (LSIGAM family) offers adaptable protection logic and seamless monitoring. Business Impact: Improves protection coordination, simplifies settings management, and enables remote diagnostics via Power Xpert Protection Manager. Application: Ideal for process lines and critical machinery where protection selectivity reduces risk of unnecessary shutdowns.Feature: High interrupting capacity of 100 kA and four-pole design. Business Impact: Supports high fault currents without compromising system safety, lowering the risk of cascading outages. Application: Key for heavy-load feeders and building infrastructure where fault events are common.Feature: Drawout vertical mounting and cataloged frame options. Business Impact: Facilitates fast installation, easier component swaps, and safer maintenance in cramped switchgear spaces. Application: Widely compatible with standard low-voltage switchgear and control panels.Feature: Comprehensive compliance and certification package (UL Listed, CE Marked, ANSI/CSA, Lloyd’s, etc.). Business Impact: Ensures regulatory alignment across global sites, simplifies procurement, and reduces audit findings. Application: Essential for multinational projects and IEC/ANSI-based installations in manufacturing and facilities management.

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FAQs

For retrofit or upgrade projects, plan for the four-pole, drawout vertical mounting to minimize wiring changes. Verify panel footprint compatibility with the Magnum double-standard frame and ensure clearance for the 16.3 in depth and 16.8 in height. Check alignment with existing Power Xpert Release trip units if upgrading to PXR-based protection to maintain coordination and monitoring capabilities.
The PXR trip unit family provides modular protection logic, adjustable protection settings, and seamless communication with Eaton’s Protection Manager. This improves selective coordination, reduces nuisance trips, and enables remote diagnostics, making maintenance and energy management more predictable in MCCs and panelboards.
Yes. The unit is UL Listed and CE Marked, with additional national and international certifications listed in its specifications. This ensures regulatory compatibility across North American, European, and other global markets, supporting safe integration in diverse control architectures.
Refer to Eaton’s Magnum PXR renewal parts and accessories documentation for compatible kits. Regular inspection of the four-pole mechanism, trip unit integrity, and contact wear is advised. Use genuine OEM parts to preserve protection performance and maintain compliance with the original certification suite.
Benefits include reduced downtime from faster maintenance due to drawout mounting, improved shutdown reliability from enhanced protection coordination with PXR, and lower lifecycle costs through certified interoperability and fewer audits. Over time, these factors translate to lower total cost of ownership and more predictable plant availability.