Eaton MPSC123HEAXX2Q Magnum LV Circuit Breaker - UL Listed
Part Number: MPSC123HEAXX2Q
Quick Summary
The Eaton Magnum low voltage power circuit breaker protects electrical panels and power distribution in industrial facilities. For engineers tasked with rapid commissioning and reliable protection, tough installation realities—legacy gear, tight panel space, and complex trip-unit configurations—are common pain points. This model carries CE Marked, UL Listed, and NEMA compliance, enabling confident deployments across global sites while helping meet regulatory requirements. Its Power Xpert Release PXR25 trip unit and standard Magnum frame simplify settings, coordination, and maintenance, reducing downtime during upgrades or expansions. With fixed horizontal mounting for stable installations, the MPSC123HEAXX2Q delivers durable protection, streamlined spares management, and a scalable path for future energy-management strategies in critical power systems.
Product Information
Extended Description
MPSC123HEAXX2Q Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 1200 A, 100 kA, Three-pole, Fixed horizontal mounting, PXR25 LSIAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC123HEAXX2Q
UPC
786689638184
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
CCC Marked CE Marked NEMA Compliant SABA Listed
Certifications
KEMA Certified CSA Certified UL Listed ANSI Lloyd's Register Certified DNV GL Certified ABS 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 - MPSC123HEAXX2Q
Eaton Specification Sheet - MPSC123HEAXX2Q
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
High-capacity protection supports large feeders and motors; the MPSC123HEAXX2Q is rated for 1200 A with a 100 kA interrupting capacity, three poles, and fixed horizontal mounting. This combination enables robust fault clearance in main- and sub-feed assemblies, reducing downstream downtime and improving uptime metrics in mission-critical lines. With a PXR25 LSIAM trip unit, the breaker offers precise protection settings, arc-energy reduction, and selective coordination, integrating with Power Xpert Protection Manager for centralized protection management and remote monitoring. The standard Magnum frame and fixed horizontal mounting simplify retrofits and panel redesigns, lowering installation time and spare-part complexity while ensuring consistent mechanical fit. Compliance with UL Listed, CE Marked, and NEMA requirements mitigates regulatory risk across diverse sites, supporting global installations. Zone-selective interlocking readiness and compatibility further enhance coordination, enabling faster fault isolation without sacrificing protection. Finally, the unit’s 14.6 in depth, 16.8 in height, 16.2 in width, and 118 lb weight inform cabinet planning and serviceability in space-constrained environments.
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FAQs
Yes. MPSC123HEAXX2Q uses the PXR25 LSIAM trip unit and is designed to integrate with Eaton's Power Xpert Protection Manager, enabling centralized protection management, event logging, and coordinated trips across feeders.
The device is rated 1200 A with a 100 kA interrupting capacity, is a three-pole unit with fixed horizontal mounting, catalog number MPSC123HEAXX2Q, and measures 14.6 in depth, 16.8 in height, and 16.2 in width; it weighs 118 lb.
It is UL Listed and CE Marked, with NEMA conformity and SABA listing; additional certifications include KEMA, CSA, ANSI, Lloyd's Register, DNV GL, and ABS certifications.
Zone selective interlocking improves fault isolation speed and reduces arc energy when paired with appropriate interlocks, enhancing selectivity while maintaining coordination with upstream protective devices.
Plan for a fixed horizontal mounting on a standard Magnum frame, with cabinet space for 14.6 in depth, 16.8 in height, 16.2 in width, and a weight of 118 lb; ensure compatible bus connections and adequate clearance in the panel design.