Eaton MPSC303MEAXX2F Magnum low voltage breaker - UL Listed

Part Number: MPSC303MEAXX2F
MPSC303MEAXX2F
Manufacturer
Eaton
Part number
MPSC303MEAXX2F
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects motors and buses in large industrial power distribution applications. Engineers often face nuisance trips, poor selective coordination, and complicated maintenance planning across evolving switchgear. This unit carries UL Listed, CE Marked, and CCC Marked certifications to meet global regulatory requirements and streamline procurement. With a drawout vertical mounting and motorized racking, plus a Power Xpert Release PXR20 LSIGAM trip unit, it enables fast, safe maintenance and precise fault isolation. Its standard frame supports retrofits into existing panels, while its 100 kA interrupting capacity and 3000 A rating deliver robust performance for demanding loads. Businesses gain reduced downtime, predictable protection, and easier compliance with industry standards.

Product Information

Extended Description

MPSC303MEAXX2F Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 3000 A, 100 kA, Three-pole, Drawout vertical with motorized racking mounting, PXR20 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC303MEAXX2F
UPC
786689637750
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
SABA Listed CE Marked CCC Marked NEMA Compliant
Certifications
Lloyd's Register Certified KEMA Certified UL Listed ANSI CSA Certified 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 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 - MPSC303MEAXX2F Eaton Specification Sheet - MPSC303MEAXX2F 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: High interrupting capacity and current rating — 100 kA and 3000 A rating. Business impact — protects large motor feeders and critical distribution trunks from high fault currents, reducing arc flash risk and enabling reliable power distribution. Application — suitable for heavy-duty industrial feeders in manufacturing and processing facilities. The result is improved uptime and safer commissioning workflows. Long-tail keywords integrated here include motor protection, high interrupting capability, and industrial power distribution. Feature: Drawout vertical mounting with motorized racking — enables quick, safe breaker replacement and minimal panel downtime. Business impact — reduces maintenance time and downtime while enhancing operator safety during switchgear maintenance. Application — ideal for serviceable switchgear in production lines and plant upgrades. Feature: PXR20 LSIGAM trip unit — provides advanced protection logic and selective coordination to minimize nuisance trips. Business impact — delivers precise fault isolation and energy-management alignment, supporting compliance with industry protection standards. Application — appropriate for large motor drives and complex electrical systems in process industries. Feature: Standard frame compatibility and documented assets — supports retrofit programs and seamless integration with existing panels. Business impact — lowers replacement costs and accelerates project timelines. Application — retrofit projects and new builds in industrial facilities. Feature: Certifications and compliance focus — UL Listed, CE Marked, CCC Marked, and NEMA compliant. Business impact — reduces regulatory risk and procurement complexity for multinational projects. Application — global installations across North America and overseas plants. Feature: Available design resources — application notes, product aids, and protection-manager software. Business impact — supports design optimization, safer commissioning, and proactive maintenance planning. Application — engineering design and maintenance workflows across factory floors.

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FAQs

For drawout panel installations, ensure the unit is mounted vertically with motorized racking and compatible with standard frame dimensions. Verify three-pole operation, space for 14.6 in depth, 16.8 in height, and 16.2 in width, and plan for a secure, accessible racking path. Confirm wiring is consistent with the PXR20 LSIGAM trip unit requirements and follow manufacturer torque specs during assembly.
The PXR20 LSIGAM trip unit provides advanced protection logic, enabling precise fault detection and selective coordination with adjacent devices. This reduces nuisance trips, improves fault isolation, and supports energy-management goals in motor drive applications. It also simplifies protection scheme tuning and integration with Power Xpert Protection Manager.
Yes. The unit is UL Listed, CE Marked, and CCC Marked, reflecting broad regulatory compliance. This combination supports international project requirements, streamlines cross-border procurement, and helps satisfy NEMA and other local electrical codes in industrial facilities.
Key specs include a 3000 A current rating, 100 kA interrupting capacity, three poles, drawout vertical mounting with motorized racking, standard frame size, and a PXR20 LSIGAM trip unit. Physical dimensions are 14.6 in depth, 16.8 in height, and 16.2 in width, with a weight of 118 lb. Applications include large motor feeders and distribution panels.
A range of assets supports design and installation, including application notes on zone selective interlocking, product aids for Magnum-PXR products, and manuals. Additional resources include certification reports, specification sheets, and Power Xpert Protection Manager software to streamline protection coordination and maintenance planning.