Eaton Magnum low voltage power circuit breakerMPSC323WEAXX2A - UL Listed

Part Number: MPSC323WEAXX2A
MPSC323WEAXX2A
Manufacturer
Eaton
Part number
MPSC323WEAXX2A
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker protects industrial electrical distribution at main or feeder levels. Engineers often grapple with short-circuit damage, coordination gaps, and downtime, but this unit’s Power Xpert Release (PXR20) trip system improves selectivity and fault isolation. It carries UL Listed and CE Marked certifications with additional cross-border approvals, including ANSI, CSA, and Lloyd’s Register, ensuring global compliance. Its robust frame, three-pole design, and drawout vertical mounting simplify installation and lifecycle maintenance, while the high interrupting rating supports demanding industrial feeders. Use cases include motor control centers, switchgear upgrades, and critical power distribution where reliability and coordination matter.

Product Information

Extended Description

MPSC323WEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 3200 A, 100 kA, Three-pole, Drawout vertical mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC323WEAXX2A
UPC
786689635336
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
Lloyd's Register Certified ANSI CSA Certified KEMA Certified UL Listed DNV GL Certified ABS 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 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 x32 22.06 1 Power Xpert Protection Manager x32 22.06 1 Eaton Specification Sheet - MPSC323WEAXX2A Eaton Specification Sheet - MPSC323WEAXX2A 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
Feature: 100 kA short-circuit current rating. Business Impact: Protects feeders and equipment from high-energy faults, reducing damage and unplanned downtime. Application: Heavy-duty industrial distribution where fault currents exceed conventional breakers. Feature: PXR20 LSI trip unit. Business Impact: Delivers advanced protection and selectivity, enabling faster fault isolation and improved coordination with downstream devices. Application: Protective schemes in power distribution panels and MCCs. Feature: Drawout vertical mounting. Business Impact: Eases maintenance, replacement, and retrofits without extensive panel modifications. Application: Modernization projects in existing switchgear. Feature: Standard frame, three-pole configuration. Business Impact: Ensures compatibility with a wide range of legacy and modern equipment, streamlining procurement and installation. Application: Motor control centers and main distribution panels. Feature: Certifications and compliance package. Business Impact: Facilitates global deployments with confidence in safety and regulatory adherence. Application: International projects across manufacturing, process, and utility sectors. Feature: Integration readiness with Power Xpert ecosystem. Business Impact: Supports centralized protection management and monitoring for optimized reliability and ROI. Application: Plants using Eaton protection managers and remote diagnostics.

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FAQs

The breaker features drawout vertical mounting for easy installation, replacement, and upgrades within existing switchgear and motor control centers. Its standard three-pole frame ensures broad compatibility with legacy MCCs and modern protection schemes, simplifying procurement and installation across mixed equipment and panel configurations.
This model is designed for a 3200 A current rating with a 100 kA short-circuit interrupting capacity. These ratings support protection of high-demand feeders and large motors while maintaining selective coordination within protection schemes.
The PXR20 LSI trip unit provides sophisticated protection logic and timing to improve selectivity, reduce nuisance trips, and speed fault isolation. This enhances overall system reliability and protection coordination with downstream devices in complex power distribution networks.
The MPSC323WEAXX2A is UL Listed and CE Marked, with additional compliance across NEMA, ANSI, CSA, KEMA, Lloyd’s Register, DNV GL, and ABS certifications. This broad certification portfolio supports global deployment in manufacturing, process industries, and utilities.
Its drawout design simplifies maintenance, enabling faster breaker replacement and reduced downtime. The PXR20 trip unit improves fault detection and coordination, contributing to longer equipment life, lower energy losses from faults, and an overall lower total cost of ownership for mission-critical installations.