Eaton MPSC323WEAXX2S Magnum LV Circuit Breaker - UL Listed
Part Number: MPSC323WEAXX2S
Quick Summary
Eaton Magnum low voltage power circuit breaker protects large electrical feeders in industrial facilities. In demanding plants, nuisance trips and coordination gaps can stall production and raise maintenance costs. UL Listed, CE Marked, and NEMA Compliant certifications provide regulatory confidence across markets, while ANSI CSA and other global certifications support multinational deployments. This model also aligns with Power Xpert Release trip units for advanced protection, and its rugged construction delivers long service life in harsh environments, delivering measurable business value through improved reliability and safer, more predictable power distribution.
Product Information
Extended Description
MPSC323WEAXX2S Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 3200 A, 100 kA, Three-pole, Drawout vertical mounting, PXR25 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC323WEAXX2S
UPC
786689635503
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
SABA Listed CCC Marked CE Marked NEMA Compliant
Certifications
ANSI CSA Certified KEMA Certified Lloyd's Register Certified UL Listed 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
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 - MPSC323WEAXX2S
Eaton Specification Sheet - MPSC323WEAXX2S
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 3200 A current rating with a 100 kA short-circuit rating enables true heavy-duty protection for critical feeders, reducing arc energy and downtime in high-load applications. Business impact: enhanced reliability for motor feeders and critical loads; application: standard frame Magnum PXR with drawout vertical mounting fits in common MCC panels, streamlining retrofit projects and minimizing panel modification. The PXR25 LSIGAM trip unit provides precise protection coordination and faster fault isolation, improving system uptime and enabling safer startup sequences when integrated with Power Xpert Protection Manager. This translates to improved maintenance planning and easier remote monitoring for facilities teams. Zone Selective Interlocking (ZSI) compatibility, documented in Eaton’s application papers, supports selective coordination and reduced nuisance trips in complex layouts, delivering cost savings and safer operation. The unit’s compact dimensions (14.6 in depth, 16.8 in height, 16.2 in width) and 118 lb weight facilitate handling, installation, and alignment with existing infrastructure while meeting industry standards. Comprehensive renewal parts and accessories availability supports long-term lifecycle management, ensuring parts availability for ongoing maintenance without aggressive obsolescence. In practice, engineers gain confidence deploying Magnum PXR in new builds or upgrades where regulatory compliance and performance credibility matter most.
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FAQs
This unit uses a three-pole, drawout vertical mounting within the standard Magnum PXR frame. Dimensions are 14.6 in depth, 16.8 in height, and 16.2 in width, with a weight of 118 lb. Plan for sufficient clearance and rail space, and consult the Magnum PXR installation manuals for torque specs and wiring configurations to ensure proper panel compatibility and safe handling during retrofit projects.
The PXR25 LSIGAM trip unit offers precise long-time and instantaneous protection tailored to high-current feeders. It supports advanced coordination strategies when paired with the Power Xpert Protection Manager, enabling faster fault isolation, improved selectivity, and easier diagnostics. This translates to reduced downtime, safer startups, and better protection of downstream equipment in demanding industrial environments.
Yes. The MPSC323WEAXX2S carries UL Listed certification and CE Marked compliance, along with NEMA compliance in the provided spec. Additional certifications include ANSI CSA Certified, KEMA Certified, and Lloyd’s Register Certified, among others, supporting global deployment and regulatory peace of mind across multiple regions and projects.
Yes. Eaton provides Zone Selective Interlocking (ZSI) application guidance for Magnum breakers, and the MPSC323WEAXX2S is compatible with protection management workflows such as Power Xpert Protection Manager. ZSI reduces arc energy and improves selectivity, enabling safer, more efficient startup sequences in complex power distribution schemes.
Eaton supplies renewal parts and accessories for Magnum PXR breakers, along with maintenance-focused literature and application papers. Availability includes replacement trip units, accessories, and compatibility guidance to extend lifecycle. Refer to the provided manuals and renewal documents to schedule part replacements, perform recalibration, and ensure ongoing protection performance with minimal downtime.