Eaton MPSC123WEAXXSW Magnum LV Circuit Breaker - 100 kAIC

Part Number: MPSC123WEAXXSW
MPSC123WEAXXSW
Manufacturer
Eaton
Part number
MPSC123WEAXXSW
Category

Quick Summary

MPSC123WEAXXSW is a Magnum low voltage power circuit breaker designed for industrial power distribution. Engineers seek reliable fault interruption and minimal downtime, which this unit delivers through a rugged 1200 A Iu rating and high 100 kAIC interrupt capability. It carries UL Listed, CSA Certified, CE Marked, ANSI, and Lloyd's Register certifications, ensuring global compliance across fleets and sites. Shipped without a trip unit, the breaker supports a straightforward upgrade to Power Xpert Release trip units, and its standard frame with drawout vertical mounting simplifies installation in new or existing panels. Designed for three-pole, standard-frame applications, it offers a clear path to scalable protection as electrical systems grow.

Product Information

Extended Description

MPSC123WEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 1200 A, 100 kA, Three-pole, Drawout vertical mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC123WEAXXSW
UPC
786689638825
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
CCC Marked NEMA Compliant CE Marked SABA Listed
Certifications
KEMA Certified UL Listed Lloyd's Register Certified CSA Certified ANSI DNV GL Certified ABS Certified
Frame
Standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Standard
Series
Magnum
Number of poles
Three-pole
Rated uninterrupted current (Iu)
1200 A
Interrupt rating
100 kAIC
Interrupt rating
100 kAIC
Rated uninterrupted current (Iu)
1200 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 - MPSC123WEAXXSW Eaton Specification Sheet - MPSC123WEAXXSW 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: Three-pole, standard-frame Magnum PXR configuration with a 1200 A Iu rating and a 100 kAIC interrupt capability. Business Impact: This combination supports heavy motor loads and high fault-current environments with reliable tripping, reducing unplanned outages and extending equipment life. Application: Ideal for main feeders and distribution panels in manufacturing, data centers, and process facilities that require robust protection without oversizing components. Feature: Drawout vertical mounting and a standard frame that simplify installation, testing, and maintenance. Business Impact: Enables quick swap-outs and minimizes panel downtime during maintenance windows. Application: Suited for retrofit projects and new builds in control rooms and switchgear assemblies. Feature: No trip unit shipped, with a clear upgrade path to Power Xpert Release trip units. Business Impact: Accelerates commissioning and provides flexible protection settings with modern communications. Application: Supports performance optimization and easy integration into protection-management workflows. Feature: Broad certifications and compliance coverage (UL Listed, CSA Certified, CE Marked, ANSI, Lloyd's Register). Business Impact: Ensures global acceptance and regulatory alignment across multinational projects. Application: Reduces qualification and rework time when deploying across sites with diverse regulatory requirements. Feature: Compatibility with Magnum PXR ecosystem and standard frame enables scalable protection strategies. Business Impact: Facilitates future expansion and coordinate-with-other-devices strategies without replacing hardware. Application: Useful in facilities planning for growth and asset-intensive industries.

Get a Quick Quote for a Eaton MPSC123WEAXXSW

Chat with us on WhatsApp - fast responses guaranteed

Need to speak with someone? We'll call you back within 2 hours during business hours

Interested in Eaton MPSC123WEAXXSW? Enquire Now

FAQs

The MPSC123WEAXXSW is a three-pole, standard-frame device designed for drawout vertical mounting. Install in compatible Magnum panels with space for a 14.6 in depth, 16.8 in height, and 16.2 in width. As shipped, it has no trip unit, so plan for a Power Xpert Release trip unit if advanced protection is required. Ensure panel bus & conductors are rated for 1200 A Iu and 100 kAIC and follow all safety and wiring standards.
This breaker provides a rated uninterrupted current (Iu) of 1200 A and an interrupt rating of 100 kAIC. It is a three-pole, standard-frame unit intended for heavy distribution applications. It ships without a trip unit but is compatible with Power Xpert Release trip units for enhanced protection settings and communication capabilities.
Yes. With 1200 A Iu and 100 kAIC interrupt capability, the MPSC123WEAXXSW is well-suited for main feeders and distribution panels in manufacturing plants, process facilities, and data centers that require robust fault protection. Its Magnum PXR compatibility supports scalable protection schemes while maintaining a compact, standard-frame footprint.
The breaker carries UL Listed, CSA Certified, and CE Marked approvals, along with ANSI and Lloyd's Register certifications. Additional compliance markers include various national and international certifications such as KEMA, ABS, and NRAs reflected in Eaton's documentation, ensuring broad regulatory acceptance for global deployments.
The drawout vertical mounting and standard frame streamline maintenance, testing, and upgrades, reducing downtime during servicing. Although shipped without a trip unit, the PXR upgrade path enables modern protection and easier integration with protection-management software, potentially lowering lifecycle costs and improving return on investment in asset-intensive facilities.