Eaton Magnum low voltage power circuit breaker MPSC324VEAXX2A - UL Listed

Part Number: MPSC324VEAXX2A
MPSC324VEAXX2A
Manufacturer
Eaton
Part number
MPSC324VEAXX2A
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker protects critical electrical systems while delivering reliable, high-current protection in industrial power distribution. When panel space is at a premium or fault currents spike, reliability and fast restoration become essential, and accurate protection management matters. This model carries UL Listed, CSA Certified, and CE Marked approvals, with Lloyd's Register and other certifications supporting compliance across regulated sectors. By integrating with Power Xpert Protection Manager and using the PXR20 LSI trip unit, teams gain easier coordination, minimized downtime, and extend equipment life, while maintaining safe, predictable operation for motor feeders and switchgear assemblies.

Product Information

Extended Description

MPSC324VEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 3200 A, 100 kA, Four-pole, Fixed vertical mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC324VEAXX2A
UPC
786689633622
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
21.2 in
Product Weight
160 lb
Compliances
CCC Marked SABA Listed CE Marked NEMA Compliant
Certifications
Lloyd's Register Certified ANSI UL Listed CSA Certified KEMA Certified ABS Certified DNV GL Certified
Frame
Standard
Number of poles
Four-pole
Type
Magnum PXR
Frame
Standard
Series
Magnum
Trip Type
PXR20 LSI
Number of poles
Four-pole
Rated uninterrupted current (Iu)
3200 A
Interrupt rating
100 kAIC
Interrupt rating
100 kAIC
Rated uninterrupted current (Iu)
3200 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 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 - MPSC324VEAXX2A Eaton Specification Sheet - MPSC324VEAXX2A 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
Feature: PXR20 LSI trip unit provides microprocessor-based protection with zone-selective coordination. Business Impact: Improves selective tripping, reduces unnecessary outages, and simplifies maintenance planning. Application: Ideal for motor feeders and panelboards requiring fast, precise protection. The PXR20 LSI supports diagnostics integration with Power Xpert Protection Manager for proactive maintenance. Feature: 3200 A Iu rated continuous current with 100 kAIC interrupt rating. Business Impact: Handles large loads and high fault currents without compromising system stability. Application: Suitable for manufacturing lines and heavy-duty feeders where fault current can exceed standard breakers. Feature: Four-pole, standard frame with fixed vertical mounting. Business Impact: Streamlines installation and ensures consistent, synchronized trip protection across all poles. Application: Widely used in switchgear and modular power distribution. Feature: Dual certification set (UL Listed, CSA Certified, CE Marked) plus SABA/Lloyd’s/ABS certifications. Business Impact: Reduces procurement risk and speeds commissioning in regulated environments. Application: Meets diverse global standards for industrial equipment. Feature: Documentation and resources including zone selective interlocking guidance. Business Impact: Enhances safety and coordination strategies with ZSI, reducing arc energy and improving personnel protection. Application: Recommended for complex systems in process plants and data centers.

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FAQs

Installation requires confirming panel suitability for four-pole protection and vertical mounting. Align the breaker with the bus bars and secure using standard mounting hardware for Magnum frames. Verify ambient and clearance conditions per the installation guide, ensure proper torque on mounting bolts, and connect the PXR20 LSI trip unit wiring as specified. Consult the user manual for step-by-step steps and safety precautions.
The MPSC324VEAXX2A supports a rated uninterrupted current (Iu) of 3200 A and a fault interrupt rating of 100 kAIC. This combination enables handling large continuous loads while protecting equipment from high-magnitude short circuits. When selecting protection, ensure panel ratings, bus duct ratings, and downstream devices align with these specifications.
Yes. Zone selective interlocking (ZSI) documentation and application guidance are available for Magnum PXR trip units. ZSI enables fast, selective clearing of faults, reducing arc energy and improving system uptime. For implementation, review the ZSI-focused papers in Eaton’s resources and ensure compatibility with the PXR20 LSI trip unit and your protection scheme.
This breaker is UL Listed, CSA Certified, and CE Marked, with additional certifications including Lloyd’s Register, ABS, DNV GL, and SABA Listed. These certifications support compliance across North America and Europe, facilitating procurement in regulated industries and simplifying customer audits.
The PXR20 LSI trip unit provides advanced, microprocessor-based protection with LSI logic for selective tripping. It supports diagnostic data exchange with Protection Manager, enabling predictive maintenance and faster fault diagnosis. In practice, this reduces unplanned downtime, improves coordination across breakers, and helps maintain consistent protection settings across multi‑pole configurations.