Eaton MPSC5A4WEAXX2S Magnum Low-Voltage Power Circuit Breaker - UL Listed 100 kAIC

Part Number: MPSC5A4WEAXX2S
MPSC5A4WEAXX2S
Manufacturer
Eaton
Part number
MPSC5A4WEAXX2S
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects industrial power systems by interrupting fault currents in main distribution panels. In busy plants, unexpected trips and complex protection schemes can slow lines and raise maintenance costs. This model carries UL Listed, CE Marked, and KEMA Certified approvals, underscoring safety and reliability across global standards. Designed for a four-pole, double standard frame with drawout vertical mounting, it simplifies service in retrofit projects. With a 5000 A Iu rating and 100 kAIC interrupt capability, it protects high-energy feeders while meeting stringent industry requirements. Equipped with the PXR25 LSIG ARMS trip unit, it enables selective coordination and fast fault clearance for critical loads. Its compatibility with Magnum PXR accessories and Power Xpert Protection Manager supports scalable, maintainable energy management.

Product Information

Extended Description

MPSC5A4WEAXX2S Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (NABCNABC), 100 kA, Four-pole, Drawout vertical mounting, PXR25 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC5A4WEAXX2S
UPC
786689631499
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
SABA Listed CCC Marked CE Marked NEMA Compliant
Certifications
KEMA Certified CSA Certified ANSI Lloyd's Register Certified UL Listed DNV GL Certified ABS Certified
Frame
Double standard
Number of poles
Four-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Trip Type
PXR25 LSIG ARMS
Number of poles
Four-pole
Rated uninterrupted current (Iu)
5000 A
Interrupt rating
100 kAIC
Interrupt rating
100 kAIC
Rated uninterrupted current (Iu)
5000 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 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 x32 22.06 1 Power Xpert Protection Manager x32 22.06 1 Eaton Specification Sheet - MPSC5A4WEAXX2S Eaton Specification Sheet - MPSC5A4WEAXX2S Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Cyber security white paper Cyber security white paper Cyber security white paper
Feature: High current capacity — rated uninterrupted current (Iu) of 5000 A — supports feed protection for large motors and feeders. Business impact: reduces cascading trips and enables longer run times between maintenance windows, improving line productivity. Application: ideal for main feeders in processing lines, data centers, and heavy industrial panels where fault currents are high. Feature: High interrupt rating — 100 kAIC — ensures safe disconnection of short-circuit faults in high-energy systems. Business impact: enhances safety margins and minimizes arc exposure during fault events. Application: suitable for switchgear feeding critical loads across manufacturing cells and energy-intensive equipment clusters. Feature: PXR25 LSIG ARMS trip unit — provides advanced protection logic with long-time and short-time curves and arms function. Business impact: enables selective coordination, reducing unintended trips and enabling faster fault clearance. Application: supports complex protection schemes in multi-bus architectures and zone selective interlocking applications. Feature: Drawout vertical mounting on a double standard four-pole frame — simplifies installation, testing, and maintenance in retrofit projects. Business impact: reduces downtime during swaps and upgrades and improves serviceability for limited-access panels. Application: widely used in retrofit programs within factory automation and process industries. Feature: Comprehensive certifications and compliance — UL Listed, CE Marked, KEMA Certified, CSA, ANSI, and more. Business impact: procurement risk reduction and global acceptance across markets. Application: regulatory-compliant protection across North America and Europe. Feature: Compatibility with Magnum PXR accessories and Power Xpert Protection Manager — streamlines configuration and monitoring. Business impact: enables centralized protection management, faster commissioning, and predictive maintenance.

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FAQs

The MPSC5A4WEAXX2S uses a drawout vertical mounting with a four-pole, double-standard frame design. This configuration supports retrofit into existing switchgear and panelboards commonly found in manufacturing facilities and data centers, enabling straightforward substitutions and upgraded protection without extensive enclosure changes. The unit's frame and mounting approach simplify serviceability and align with standard DIN/KEA rail installations where applicable.
Key specifications include a rated uninterrupted current (Iu) of 5000 A and an interrupt rating of 100 kAIC, supporting high-energy fault interruption. It is a four-pole Magnum PXR device with a PXR25 LSIG ARMS trip unit, suitable for main feeders and critical loads in demanding environments. Dimensions reflect a compact yet robust drawout unit designed for panel and switchgear installations.
Yes. With a 100 kAIC interrupt rating and 5000 A Iu, the device is well-suited for high-energy industrial applications such as manufacturing lines and processing facilities. The PXR25 LSIG ARMS trip unit supports selective coordination, reducing unnecessary trips and enabling faster fault clearance, which is essential for complex protection schemes and zone selective interlocking deployments.
The breaker carries UL Listed and CE Marked certifications, among others like KEMA Certified and CSA Certified, indicating compliance with major North American and European safety standards. This breadth of certification reduces procurement risk, eases cross-border applicability, and supports adherence to regulatory requirements in global projects.
Official Eaton resources include the Magnum PXR product specification sheet for MPSC5A4WEAXX2S, the Magnum PXR user manuals, and related application papers such as zone selective interlocking literature. Access to these documents facilitates accurate sizing, installation, and commissioning, and supports ongoing maintenance and upgrades in power distribution systems.