Eaton Magnum low voltage MPSC123HEAXX2S - 100 kAIC

Part Number: MPSC123HEAXX2S
MPSC123HEAXX2S
Manufacturer
Eaton
Part number
MPSC123HEAXX2S
Category

Quick Summary

Eaton Magnum low voltage MPSC123HEAXX2S is a high-capacity circuit breaker for industrial distribution panels. Engineers often contend with nuisance trips, protection coordination, and the pressure to minimize downtime. The unit carries CE Marked, UL Listed, and KEMA Certified credentials, reinforcing compliance across global sites. With a fixed horizontal mount and the PXR25 LSIG ARMS trip unit, it integrates smoothly with Power Xpert Release systems to boost reliability and reduce maintenance costs.

Product Information

Extended Description

MPSC123HEAXX2S Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 1200 A, 100 kA, Three-pole, Fixed horizontal mounting, PXR25 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC123HEAXX2S
UPC
786689638313
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
CE Marked NEMA Compliant SABA Listed CCC Marked
Certifications
KEMA Certified ANSI Lloyd's Register Certified UL Listed CSA Certified DNV GL Certified ABS Certified
Frame
Standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Standard
Series
Magnum
Trip Type
PXR25 LSIG ARMS
Number of poles
Three-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 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 - MPSC123HEAXX2S Eaton Specification Sheet - MPSC123HEAXX2S Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Cyber security white paper Cyber security white paper Cyber security white paper
High-capacity protection with a 1200 A Iu rating and 100 kAIC interrupt capability provides robust safeguarding for large distribution panels, enabling safer start-ups and reduced fault spread in demanding environments. The standard frame and fixed horizontal mounting simplify installation in existing switchgear and new builds, cutting commissioning time and minimizing field labor. The PXR25 LSIG ARMS trip unit delivers advanced protection logic and selective coordination, improving fault discrimination and safety while potentially lowering downstream energy losses. Comprehensive certifications including CE, UL, ANSI, and KEMA support global deployments and regulatory compliance, reducing project risk across sites. Compatibility with Magnum PXR ecosystems and Power Xpert Protection Manager enables unified protection management, remote monitoring, and streamlined maintenance planning for ongoing uptime. This combination supports retrofit projects and future-proof upgrades without extensive controller changes.

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FAQs

For fixed horizontal mounting on a standard three-pole Magnum PXR frame, plan space for 16.2 in width, 16.8 in height, and 14.6 in depth, plus access for wiring and maintenance. Verify panel rails and mounting feet align with the breaker footprint to ensure proper alignment and serviceability.
The PXR25 LSIG ARMS trip unit provides advanced logic for selective tripping, reducing nuisance trips and enhancing coordination between feeders. This supports improved fault discrimination and safer shutdown sequences in complex distributions, while enabling smoother integration with Power Xpert Protection Manager.
Yes, the breaker is UL Listed and CE Marked, with additional certifications including ANSI, KEMA Certified, Lloyd's Register, CSA, DNV GL, ABS, and SABA Listed, supporting compliance across multiple international markets.
The unit is rated for 1200 A Iu with an interrupt rating of 100 kAIC, enabling protection of high-current circuits and rapid fault clearance in demanding industrial environments.
Ideal for main distribution panels in manufacturing and process plants, large panel retrofits, and applications requiring robust 1200 A Iu capacity and high fault tolerance, especially where Power Xpert Release trip units are used for integrated protection management.