Eaton MPSC123MEAXX2C Magnum LV Circuit Breaker - UL Listed
Part Number: MPSC123MEAXX2C
Quick Summary
Eaton Magnum low voltage power circuit breaker protects critical motor and feeder circuits in manufacturing and processing facilities. Engineers often face unexpected downtime and protection coordination gaps, which frustrate maintenance programs; this model addresses those challenges with a 1200 A frame and 100 kA interrupt rating. It carries UL Listed, CE Marked, and NEMA Compliant certifications, plus ANSI and Lloyd's Register approvals, for broad regulatory alignment. By leveraging the Power Xpert Release PXR20 LSIG trip unit, it enables precise, selective protection and easier maintenance, reducing risk and spare parts. The solution is compatible with standard frames and supports retrofit in existing Eaton Magnums, enabling seamless upgrades. For procurement teams, this combination supports compliance audits and long-term budget planning.
Product Information
Extended Description
MPSC123MEAXX2C Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 1200 A, 100 kA, Three-pole, Drawout vertical with motorized racking mounting, PXR20 LSIG trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC123MEAXX2C
UPC
786689638344
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
SABA Listed CE Marked NEMA Compliant CCC Marked
Certifications
ANSI Lloyd's Register Certified KEMA Certified UL Listed 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 - MPSC123MEAXX2C
Eaton Specification Sheet - MPSC123MEAXX2C
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 capacity and standard frame compatibility. Benefit: Protects large motors and feeders with fast fault clearing, reducing the risk of collateral damage in harsh industrial environments. Application: Heavy-duty conveyors, pumps, and presses in automotive, manufacturing, and process facilities. Feature: Power Xpert Release PXR20 LSIG trip unit. Benefit: Enables configurable protection curves, improved coordination, and remote protection management, lowering unplanned downtime and electrical nuisance trips. Application: Critical process lines requiring tight protection coordination and rapid fault isolation. Feature: Drawout vertical mounting with motorized racking. Benefit: Simplifies breaker replacement and maintenance, minimizes downtime, and enhances operator safety during maintenance windows. Application: Refurbishment projects and OEM panel upgrades. Feature: Comprehensive certifications and compliances. Benefit: Supports regulatory audits and safety programs, reducing procurement risk and accelerating project approvals. Application: Environments demanding UL, CE, NEMA, and international approvals. Feature: Robust physical dimensions and 3-pole design. Benefit: Predictable fit within standard panels and existing bus systems, supporting straightforward integration and lifecycle planning. Application: New installations and retrofit projects in controlled electrical rooms.
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FAQs
The MPSC123MEAXX2C is a three-pole, drawout vertical configuration designed for standard Magnum frames and motorized racking. It supports easy replacement without extensive panel rewiring, compatible with existing Eaton buswork, and fits within common electrical room layouts. This simplifies retrofits and new installs while maintaining robust protection for large motor loads.
The PXR20 LSIG trip unit provides adjustable protection curves and selective coordination, enabling precise fault detection and faster clearing for critical loads. This reduces nuisance trips and limits arc exposure, supporting safer operation and easier maintenance in manufacturing lines and process cells. It also interfaces with protection management tools for remote monitoring.
The MPSC123MEAXX2C carries UL Listed, CE Marked, and NEMA compliance, along with ANSI and Lloyd's Register certification. Additional approvals include KEMA, CSA, ABS, and DNV GL certifications, ensuring broad regulatory acceptance across global markets and supporting formal safety and reliability audits.
The unit is a 3-pole, drawout breaker with dimensions approximately 14.6 in deep, 16.8 in tall, and 16.2 in wide, weighing about 118 lb. These compact but robust dimensions support straightforward panel integration and space planning, while providing the protection level required for 1200 A service and 100 kA interrupt capacity.
This Magnum breaker is rated for 1200 A continuous current with a 100 kA interrupt capacity, three-pole configuration, standard frame, and drawout vertical mounting with motorized racking. These ratings enable reliable protection for large motors and feeders, enabling selective coordination and fast fault clearance in demanding industrial environments.