Eaton MPSC123WEAXX2A Magnum PXR Breaker - UL/CSA

Part Number: MPSC123WEAXX2A
MPSC123WEAXX2A
Manufacturer
Eaton
Part number
MPSC123WEAXX2A
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects industrial electrical networks and motor circuits. In demanding plants, uptime and selective protection are critical, yet configuring trip units and coordinating with downstream devices can slow commissioning. This model carries UL Listed, CSA Certified, and CE Marked compliance, with NEMA compatibility to support global installations. When paired with the Magnum PXR20 LSI trip unit for 1200 A protection, it simplifies protection schemes and reduces setup time. With a standard frame, three poles, drawout vertical mounting, and modular accessories, it delivers reliable protection while enabling scalable, cost-efficient rollout across facilities.

Product Information

Extended Description

MPSC123WEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 1200 A, 100 kA, Three-pole, Drawout vertical mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC123WEAXX2A
UPC
786689638955
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
CE Marked SABA Listed CCC Marked NEMA Compliant
Certifications
ANSI CSA Certified UL Listed KEMA Certified Lloyd's Register Certified ABS Certified DNV GL Certified
Frame
Standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Standard
Series
Magnum
Trip Type
PXR20 LSI
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 - MPSC123WEAXX2A Eaton Specification Sheet - MPSC123WEAXX2A Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Safer by design: arc energy reduction techniques Safer by design: arc energy reduction techniques Safer by design: arc energy reduction techniques
Feature: 1200 A rated uninterrupted current (Iu) and 100 kAIC interrupt rating → Business Impact: robust fault current handling protects equipment and reduces downtime; Application: motor feeders and main distribution panels in mid-to-large industrial installations. Feature: Drawout vertical mounting on a standard three-pole frame → Business Impact: enables quick inspection, fast replacement, and minimal downtime during maintenance; Application: retrofit and upgrade projects in existing switchgear. Feature: Magnum PXR20 LSI electronic trip unit → Business Impact: precise protection coordination and arc energy management; Application: critical process lines requiring selective trips and reduced arc exposure. Feature: Global certifications and compliance (UL Listed, CSA Certified, CE Marked, NEMA Compliant) → Business Impact: simplifies multi-region deployments and regulatory adherence; Application: international facilities with strict safety and performance standards. Feature: Extensive documentation and renewal-part compatibility → Business Impact: reduces downtime and procurement cycles, enabling faster maintenance; Application: service centers and OEMs managing Magnum PXr systems with available manuals and product aids.

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FAQs

The MPSC123WEAXX2A is designed for seamless integration with Magnum PXR coordination schemes, featuring a three-pole standard frame and drawout vertical mounting for straightforward replacement in existing switchgear. It supports the PXR20 LSI trip unit, enabling accurate protection coordination across upstream and downstream devices while preserving system selectivity and minimizing nuisance trips.
A 100 kAIC interrupt rating means the breaker can safely interrupt high fault currents without arcing or equipment damage, protecting feeders, motors, and switchgear. Combined with the 1200 A Iu rating and PXR20 LSI, it provides reliable protection for demanding loads and enhances overall system reliability in manufacturing lines and process plants.
Yes. The three-pole Magnum MPSC123WEAXX2A with drawout vertical mounting is well-suited for motor control centers and heavy feeder applications. Its 1200 A continuous rating, 100 kAIC interrupt capability, and PXR protection unit support robust motor starting protection, coordination with downstream devices, and reduced downtime during maintenance.
This model carries UL Listed and CSA Certified marks, is CE marked, and complies with NEMA requirements, enabling global deployment. Additional certifications and compatibility with regional safety standards are supported by Eaton’s broader Magnum PXR documentation and product literature.
Eaton provides extensive documentation, including specification sheets, user manuals, and renewal-part guides for Magnum PXr systems. Access to renewal parts and compatible accessories reduces downtime and extends asset life, while the online library of application notes and product aids facilitates faster troubleshooting and service.