Eaton MPSC123WEAXX2C Magnum PXR 100 kAIC UL Listed

Part Number: MPSC123WEAXX2C
MPSC123WEAXX2C
Manufacturer
Eaton
Part number
MPSC123WEAXX2C
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects electrical power systems in industrial machinery and distribution panels. For engineers, ensuring selective tripping and rapid fault isolation is a constant challenge, especially in high-availability plants. This model carries UL Listed, CSA Certified, and CE marking, enabling global deployment across diverse markets and customer specs. Its Magnum PXR20 LSIG trip unit delivers precise coordination between feeders, reducing nuisance trips and helping to keep critical lines online. The drawout vertical mounting simplifies field replacement, while the standard frame supports seamless integration with existing switchgear. Together with Power Xpert Protection Manager compatibility, it enables remote monitoring, configuration, and fast diagnostics, delivering tangible business value through improved uptime and safer operations.

Product Information

Extended Description

MPSC123WEAXX2C Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 1200 A, 100 kA, Three-pole, Drawout vertical mounting, PXR20 LSIG trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC123WEAXX2C
UPC
786689638962
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
CE Marked CCC Marked NEMA Compliant SABA Listed
Certifications
ANSI Lloyd's Register Certified KEMA Certified UL Listed CSA Certified ABS Certified DNV GL Certified
Frame
Standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Standard
Series
Magnum
Trip Type
PXR20 LSIG
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 Magnum PXR low voltage power circuit breakers user manual Magnum PXR low voltage power circuit breakers user manual Magnum PXR low voltage power circuit breakers user manual Circuit Protection, Power Breakers, Contactors and Fuses, Volume 4, Tab 3 Power Xpert Protection Manager x32 22.06 1 Power Xpert Protection Manager x32 22.06 1 Eaton Specification Sheet - MPSC123WEAXX2C Eaton Specification Sheet - MPSC123WEAXX2C 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
Three pole design in a standard Magnum frame delivers reliable, scalable protection for multi-phase distribution networks, enabling easier panel integration and future upgrades. Feature → Business Impact → Application: The three-pole, drawout vertical mounting supports fast swap-outs in the field, reducing maintenance downtime and inventory complexity when replacing failed units in process lines or data centers. This translates to lower lifecycle costs and improved equipment uptime. Feature → Business Impact → Application: The PXR20 LSIG trip unit provides precise overload, short-circuit, and instantaneous protection with improved selectivity, enhancing coordination between feeders and minimizing cascading outages in large motor and process systems. This is essential for manufacturing lines and critical pumps where uptime directly drives throughput. Feature → Business Impact → Application: With a 1200 A Iu rating and 100 kAIC interrupt capability, the breaker tolerates high fault currents, safeguarding bus bars and feeders in heavy loads such as metalworking presses or plastics processing. This supports compliance with reliability standards and reduces risk of downstream damage. Feature → Business Impact → Application: The unit’s compatibility with Power Xpert Protection Manager enables remote configuration, event history access, and alarm management, simplifying fleet-wide protection strategies in facilities with centralized control rooms. Feature → Business Impact → Application: The drawout mechanism and weight of 118 lb facilitate on-site service and spare-part logistics, improving maintenance planning and reducing downtime during routine tests or replacements. Additional context shows that the product meets CE Marked, UL Listed, and CSA Certified standards, enabling global deployment across multiple regions and codes. In practice, engineers leverage these certifications to streamline procurement and ensure regulator-ready installations while maintaining safety margins and performance expectations.

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FAQs

The MPSC123WEAXX2C uses a standard Magnum frame with a three-pole design and drawout vertical mounting, allowing quick field replacement and straightforward integration into existing switchgear. Its depth is 14.6 in, height 16.8 in, and width 16.2 in, with a weight of approximately 118 lb, facilitating reasonable handling and swap-out operations during maintenance windows.
Key ratings include rated uninterrupted current Iu of 1200 A and an interrupt rating of 100 kAIC, three-pole configuration, and the PXR20 LSIG trip unit. These specifications enable strong fault handling and selective coordination in high-demand systems while maintaining safety and compliance.
Yes. The PXR20 LSIG trip unit provides precise coordination, reducing nuisance trips and enabling selective fault isolation. When used in data centers or manufacturing lines, it helps protect critical loads while allowing nonessential feeders to remain online during faults, improving overall system reliability.
The breaker is UL Listed and CSA Certified, with CE Marked compliance and additional certifications from ANSI, Lloyd's Register, KEMA, ABS, and DNV GL. These credentials support global manufacturing and installation across multiple regulatory environments and markets.
Power Xpert Protection Manager enables remote configuration, monitoring, and event history access for the MPSC123WEAXX2C. This reduces onsite visits, speeds diagnostics, and improves protection strategy optimization, delivering faster mean time to repair and a clearer return on investment through improved uptime and safer operations.