Eaton Magnum low voltage MPSC4N3WEAXX2H - UL Listed 100 kA

Part Number: MPSC4N3WEAXX2H
MPSC4N3WEAXX2H
Manufacturer
Eaton
Part number
MPSC4N3WEAXX2H
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker is a robust protection device for large industrial power distribution systems. Facility teams often wrestle with nuisance trips, miscoordination, and slow fault isolation as systems scale. UL Listed, CE Marked, and CSA Certified—with additional Lloyd’s Register and ANSI approvals—this product supports global deployments. Featuring a double-standard frame, three-pole design, and drawout vertical mounting, it integrates with Power Xpert Protection Manager for centralized monitoring. The combination of 4000 A Iu, 100 kA interrupt rating, and precise trip curves delivers improved safety and uptime, while streamlined maintenance reduces total cost of ownership. For engineers, it aligns with zone selective interlocking practices to optimize coordination and minimize downstream faults.

Product Information

Extended Description

MPSC4N3WEAXX2H Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (AABBCC), 100 kA, Three-pole, Drawout vertical mounting, PXR20 LSIAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC4N3WEAXX2H
UPC
786689633684
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
NEMA Compliant CCC Marked SABA Listed CE Marked
Certifications
Lloyd's Register Certified UL Listed CSA Certified ANSI KEMA Certified ABS Certified DNV GL Certified
Frame
Double standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Trip Type
PXR20 LSI ARMS
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 - MPSC4N3WEAXX2H Eaton Specification Sheet - MPSC4N3WEAXX2H 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: High interrupt rating of 100 kAIC. Business Impact: Enables rapid clearance of major faults, protecting feeders and downstream equipment from severe fault currents. Application: Large switchgear and distribution boards in heavy industry. Feature: 4000 A rated uninterrupted current (Iu). Business Impact: Supports demanding loads with minimal voltage drop and reduced nuisance trips. Application: Motor control centers and critical manufacturing lines. Feature: Drawout vertical mounting and triple-pole design. Business Impact: Simplifies replacement and maintenance, reducing downtime during service windows. Application: Retrofit projects in existing panels and new installations with standard frame compatibility. Feature: Power Xpert Release trip unit (PXR20 LSI ARMS). Business Impact: Improves selective coordination, minimizing outages and energy waste. Application: Complex feeder schemes and multi-panel protection strategies. Feature: Comprehensive certifications (UL Listed, CSA Certified, CE Marked, Lloyd’s Register). Business Impact: Facilitates global deployment with regulatory confidence. Application: Projects in North America, Europe, and international facilities. Feature: Frame and series compatibility (Magnum, Double standard frame). Business Impact: Streamlines sourcing and spare parts, reducing total cost of ownership. Application: Large-scale power distribution installations and upgrade programs.

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FAQs

Yes. The MPSC4N3WEAXX2H is designed for three-pole, drawout vertical mounting within Magnum frames and standard double-standard enclosures. It supports existing LV switchgear with compatible frame size and pole configuration, enabling straightforward retrofits in new builds and upgrades. When installing, verify busbar ratings, mounting rails, and trip-unit alignment to ensure full functional coordination with adjacent devices and Power Xpert Protection Manager integration.
Key specs include 4000 A Iu for continuous current capability and a 100 kAIC interrupt rating, enabling reliable fault interruption for high-demand circuits. The unit is a three-pole device with PXR20 LSI ARMS trip unit, supporting selective coordination in complex feeder networks. These specifications ensure robust protection for large motors, feeders, and distribution panels in demanding industrial environments.
Ideal for large switchgear, motor control centers, and mainstream distribution boards in manufacturing, data centers, and process facilities. Its PXR20 LSI trip unit supports zone selective interlocking, helping to reduce downstream outages and improve overall system reliability. The 3-pole, drawout configuration is well-suited for modular installations and upgrades to meet evolving protection schemes.
The MPSC4N3WEAXX2H carries UL Listed, CE Marked, and CSA Certified approvals, with additional Lloyd’s Register and ANSI references. These certifications confirm regulatory compliance across key global markets, simplify cross-border procurement, and support risk management in regulated industries such as oil & gas, marine, and high-reliability manufacturing.
Maintenance benefits include easy field-replacement of drawout trip units, modularity for upgrades, and compatibility with Power Xpert Protection Manager for remote health monitoring. ROI gains come from reduced downtime due to improved selectivity, fewer nuisance trips, and longer service intervals on high-demand feeders. The ability to standardize on Magnum frames also lowers spare parts inventory and simplifies training for maintenance teams.