Eaton Magnum low voltage power circuit breaker MPSC123MEAXX2Q - UL Listed

Part Number: MPSC123MEAXX2Q
MPSC123MEAXX2Q
Manufacturer
Eaton
Part number
MPSC123MEAXX2Q
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker MPSC123MEAXX2Q is a reliable protection device for large-scale industrial power distribution systems. It provides fast, selective tripping to minimize unplanned downtime while safeguarding critical equipment. Engineers face challenges with nuisance trips, complex coordination, and space constraints; this Magnum breaker addresses those by offering a high interrupt rating and a drawout, motorized-racking design that streamlines maintenance. The unit carries UL Listed, ANSI/CSA certification, CE marking, and SABA listing to ensure compliance across international projects. With Power Xpert Protection Manager compatibility and the PXR25 LSIAM trip unit, it supports scalable protection schemes while remaining suitable for Magnum accessories. This combination delivers safer operations, easier procurement, and reduced total cost of ownership without sacrificing reliability.

Product Information

Extended Description

MPSC123MEAXX2Q Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 1200 A, 100 kA, Three-pole, Drawout vertical with motorized racking mounting, PXR25 LSIAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC123MEAXX2Q
UPC
786689638498
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
NEMA Compliant CE Marked CCC Marked SABA Listed
Certifications
Lloyd's Register Certified UL Listed KEMA Certified ANSI CSA Certified ABS Certified DNV GL 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 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 - MPSC123MEAXX2Q Eaton Specification Sheet - MPSC123MEAXX2Q 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: PXR25 LSIAM trip unit provides advanced protection logic. Business Impact: improves protection selectivity and reduces nuisance trips, lowering maintenance costs and unplanned downtime. Application: ideal for motor control centers and panel boards in manufacturing and process industries. Feature: 1200 A current rating with 100 kA interrupt capacity. Business Impact: supports large feeders and high fault current environments, reducing the risk of system-wide outages. Application: data centers, packaging lines, and heavy machinery feeds. Feature: Drawout vertical mounting with motorized racking. Business Impact: simplifies maintenance, reduces switching risk, and speeds breaker seating and removal. Application: field upgrades and routine testing in switchgear assemblies. Feature: Compatibility with Magnum family and renewal parts. Business Impact: lowers lifecycle costs, simplifies stocking, and accelerates procurement. Application: retrofit projects and long-term assets in existing plants. Feature: Broad certifications including UL Listed, ANSI, CSA, Lloyd's Register, and CE Marking. Business Impact: ensures regulatory compliance and risk mitigation across global projects. Application: highly regulated sectors such as oil & gas, chemical processing, and power generation.

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FAQs

The MPSC123MEAXX2Q is designed for Magnum standard-frame panels with a three-pole configuration and a drawout vertical mounting. It supports motorized racking for safe seating and removal, and aligns with Magnum accessories, facilitating retrofits in existing switchgear without major redesigns. Verify panel clearance and bus standoff compatibility prior to installation.
Key specs include three-pole operation, 1200 A current rating, 100 kA interrupt capacity, and a PXR25 LSIAM trip unit. It is UL Listed and ANSI/CSA certified, CE marked, and SABA listed, ensuring broad regulatory compliance for industrial applications and safer fault clearance in heavy-load circuits.
Yes. The PXR25 LSIAM trip unit supports advanced coordination schemes, enabling selective tripping and minimizing downstream impacts during faults. For maximum effectiveness, pair it with proper system studies and appropriate upstream protections, and consult Eaton’s application papers on selective coordination for configuration guidance.
The breaker holds UL Listed, ANSI, CSA certifications, Lloyd's Register certification, KEMA certification, ABS, DNV GL, and CE Marking, plus SABA Listing. This broad certification portfolio supports compliance across regulated industries such as oil & gas, chemical processing, and power generation.
The motorized racking and drawout design reduce maintenance downtime, while the high interrupt rating and selective protection minimize outages. Lifecycle costs are lowered by compatibility with renewal parts and Magnum accessories, and integration with Power Xpert Protection Manager enables proactive asset management and faster fault diagnosis.