Eaton MPSC124WEAXX2S Magnum LV Power Breaker - UL Listed
Part Number: MPSC124WEAXX2S
Quick Summary
MPSC124WEAXX2S is a Magnum low-voltage power circuit breaker designed for high-current protection in industrial power distribution panels and MCCs. In practice, engineers face nuisance trips and coordination challenges across large switchgear without a robust protection strategy. This unit delivers four-pole protection up to 1200 A with a 100 kA interrupting rating and integrates a Power Xpert Release PXR25 LSIGAM trip unit for precise, selective tripping. It carries UL Listed, CE Marked, and CSA Certified approvals, backed by Lloyd's Register and other global certifications, ensuring reliability across global sites. By aligning with standard frame and drawout mounting, it simplifies installation, reduces commissioning time, and supports scalable protection schemes for evolving plants.
Product Information
Extended Description
MPSC124WEAXX2S Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 1200 A, 100 kA, Four-pole, Drawout vertical mounting, PXR25 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC124WEAXX2S
UPC
786689640248
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
21.2 in
Product Weight
160 lb
Compliances
CCC Marked SABA Listed CE Marked NEMA Compliant
Certifications
Lloyd's Register Certified CSA Certified UL Listed ANSI KEMA 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
Power Xpert Release trip unit for Magnum PXR circuit breakers PXR 20/25 user manual
Power Xpert Release trip unit for Magnum PXR circuit breakers PXR 20/25 user manual
Power Xpert Release trip unit for Magnum PXR circuit breakers PXR 20/25 user manual
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 - MPSC124WEAXX2S
Eaton Specification Sheet - MPSC124WEAXX2S
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-current protection with a 1200 A rating and 100 kA interrupting capacity provides robust fault protection for feeders and motors. The four-pole design enables complete circuit isolation and reduces arc energy transfer, translating to lower equipment damage and safer maintenance in demanding facilities. This capability is essential for critical processes where uptime is non-negotiable, such as continuous manufacturing lines and water treatment plants. The Power Xpert Release PXR25 LSIGAM trip unit offers precise coordination and diagnostic visibility, enabling faster fault isolation and reduced mean time to repair. In practice, engineers can tune protection curves to support selective coordination across feeders, improving overall system reliability and reducing unnecessary outages. The drawout vertical mounting and standard frame compatibility simplify installation, hot-swapping, and maintenance, minimizing shutdown time during panel upgrades or expansions. Compliance with UL, CE, CSA, and other certifications supports global deployment across facilities with varying regulatory demands. Together with clear field-replaceable parts and widely available support, the solution delivers predictable lifecycle costs and easier procurement.
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FAQs
For drawout panel installations, ensure use of the Magnum MPSC124WEAXX2S in a standard frame, four-pole configuration with vertical drawout mounting. Verify busbar alignment and mounting clearance, follow torque specs for module connections, and plan for zone selective interlocking where available. The unit’s 14.6 in depth, 16.8 in height, and 21.2 in width define required panel footprint and cooling considerations to maintain safe operation and reliable tripping performance.
The MPSC124WEAXX2S provides a 1200 A current rating and 100 kA interrupting capacity, supporting high-demand feeders and motor circuits. This enables robust short-circuit protection and selective coordination within MCCs and switchgear. Designers can leverage the PXR25 LSIGAM trip unit to tailor protection curves, improving fault isolation without compromising available current for critical loads.
Yes. The four-pole Magnum design paired with the PXR25 LSIGAM trip unit supports selective coordination strategies across motor feeders and panels. By coordinating trip curves and using the LSIGAM settings, faults are cleared at the nearest upstream device, minimizing impact on downstream processes and reducing unplanned downtime in manufacturing and process industries.
This breaker carries UL Listed, CE Marked, and CSA Certified approvals, along with additional recognitions from Lloyd's Register, ANSI, KEMA, ABS, and DNV GL. It is designed to meet NEMA compliance and supports global deployment in facilities with diverse regulatory requirements, simplifying procurement and commissioning across sites.
Power Xpert Release trip units enable precise fault diagnostics and configurable protection settings, reducing nuisance trips and improving reliability. Lifecycle benefits include easier retrofits, simplified maintenance with field-replaceable trip units, and better visibility into breaker health through integration with protection management tools, which collectively lower maintenance costs and extend equipment uptime.