Eaton MPSC124HEAXX2H Magnum LV Circuit Breaker - UL Listed
Part Number: MPSC124HEAXX2H
Quick Summary
The Eaton Magnum low voltage power circuit breaker protects electrical distribution by interrupting fault currents in industrial plants. Engineers often struggle with coordinating protection and avoiding nuisance trips in complex switchgear. This unit is CE Marked, UL Listed, and CSA Certified, supporting global compliance and streamlined procurement. Built for Magnum PXR trip units and Power Xpert Protection Manager, it enables scalable protection strategies that minimize downtime. The rugged four‑pole, fixed horizontal design with a standard frame simplifies installation in new builds or retrofit projects, delivering reliable protection with lower installation risk. With a 1200 A Iu rating and 100 kAIC interrupt capability, it supports high‑demand applications while reducing system‑wide risk.
Product Information
Extended Description
MPSC124HEAXX2H Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 1200 A, 100 kA, Four-pole, Fixed horizontal mounting, PXR20 LSIAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC124HEAXX2H
UPC
786689639297
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 ANSI CSA Certified KEMA Certified UL Listed DNV GL Certified ABS Certified
Frame
Standard
Number of poles
Four-pole
Type
Magnum PXR
Frame
Standard
Series
Magnum
Trip Type
PXR20 LSI ARMS
Number of poles
Four-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 - MPSC124HEAXX2H
Eaton Specification Sheet - MPSC124HEAXX2H
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
The Magnum standard frame with four-pole, fixed horizontal mounting provides a universal installation footprint across LV switchgear, simplifying panel design and spares logistics. This consistency reduces installation time and panel fabrication costs, while improving spare‑part availability in multi‑bay installations. Ideal for new builds and retrofits in manufacturing lines and data centers where space and interchangeability matter. The unit’s 1200 A Iu rating and 100 kAIC interrupt capability deliver robust fault current handling in high‑demand grids, enabling safer shutdowns and reducing conductor damage during faults. In large switchgear panels, the PXR20 LSI ARMS trip unit enables zone selective interlocking and coordinated protection, minimizing arc energy and accelerating fault isolation. When paired with Power Xpert Protection Manager, commissioning and ongoing maintenance are simplified, with centralized logging and firmware updates improving mean time to repair. Availability of Magnum renewal parts and accessories supports long‑term serviceability, while certifications such as CE, UL, and CSA underpin regulatory compliance across regions.
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FAQs
Yes. The MPSC124HEAXX2H is designed for compatibility with Magnum PXR trip units (PXR20 LSI ARMS) and Power Xpert Protection Manager, enabling centralized protection management, event logging, and streamlined commissioning across multiple breakers within a panel or distributed system.
The breaker provides a rated uninterrupted current (Iu) of 1200 A and an interrupt rating of 100 kAIC, four-pole construction, and a fixed horizontal mounting. These ratings indicate robust fault handling for high‑current feeders and motors, while ensuring reliable protection coordination across complex LV distribution schemes.
This unit is well suited for heavy industrial facilities, manufacturing lines, data centers, and process plants where large motor feeders and high fault currents demand dependable protection, fast isolation, and scalable coordination with Power Xpert Protection Manager for centralized control.
The MPSC124HEAXX2H carries CE Mark, UL Listed, and CSA Certified credentials, with additional certifications from Lloyd’s Register and other bodies. These certifications facilitate global procurement, regulatory compliance, and safer installations across diverse jurisdictions.
Magnum renewal parts and accessories are available to extend service life, shorten downtime during maintenance, and simplify spares management. When combined with standardized frame and mounting, this reduces lifecycle costs and speeds repairs, delivering a lower total cost of ownership over the breaker’s service life.