Eaton MPSC303MEAXXSW Magnum LV Circuit Breaker - UL Listed

Part Number: MPSC303MEAXXSW
MPSC303MEAXXSW
Manufacturer
Eaton
Part number
MPSC303MEAXXSW
Category

Quick Summary

Eaton MPSC303MEAXXSW Magnum LV Circuit Breaker provides reliable overcurrent protection for electrical distribution panels in industrial facilities. Engineers often face costly outages and risky maintenance when protection devices require frequent manual operation or hard-to-access maintenance. UL Listed, CE Marked, and CSA Certified, this unit aligns with global safety and compliance expectations while supporting scalable protection strategies. Designed for motor control centers, it integrates with Power Xpert Release trip units where needed, delivering business value through uptime and safety. The rugged build supports 3000 A main current and 100 kA interrupting capacity, suitable for demanding plant feeders. Its drawout vertical mounting with motorized racking simplifies maintenance scheduling and protects personnel during servicing.

Product Information

Extended Description

MPSC303MEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 3000 A, 100 kA, Three-pole, Drawout vertical with motorized racking mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC303MEAXXSW
UPC
786689637682
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
NEMA Compliant SABA Listed CCC Marked CE Marked
Certifications
KEMA Certified CSA Certified ANSI 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 - MPSC303MEAXXSW Eaton Specification Sheet - MPSC303MEAXXSW 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 → Business Impact → Application: Drawout vertical mounting with motorized racking enhances maintenance efficiency and safety, reducing arc-flash exposure during servicing and enabling rapid retrofits in crowded switchgear. This aligns with motor control centers and distribution panels in manufacturing and process plants. Feature → Business Impact → Application: A 3000 A frame with 100 kA interrupting capacity delivers robust protection for high-demand feeders, increasing equipment uptime and reducing risk of downstream damage in critical manufacturing lines. Feature → Business Impact → Application: Three-pole standard frame ensures compatibility with common MCC footprints, enabling seamless integration into existing switchgear while simplifying coordination with other protection devices. Feature → Business Impact → Application: No trip unit included, allowing designers to select Power Xpert Release trip units for precise coordination or to retrofit in a phased protection strategy. Feature → Business Impact → Application: Broad compliance (UL Listed, CE Marked, CSA Certified, KEMA Certified) supports global procurement and audit readiness, reducing regulatory risk and speeding project approvals. Feature → Business Impact → Application: Compact footprint and a weight of 118 lb with dimensions of 14.6 in depth, 16.8 in height, and 16.2 in width provide installation flexibility in space-constrained MCCs and panel boards, improving layout efficiency for new builds and retrofits.

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FAQs

The MPSC303MEAXXSW uses a drawout vertical mounting on a standard frame, making it compatible with many existing low-voltage switchgear configurations. It ships without a trip unit, so you can choose a Power Xpert Release unit to meet your protection scheme or retrofit later if your application evolves. Ensure physical clearances and racking clearance meet equipment manufacturer guidelines during retrofits.
This Magnum LV breaker is rated for up to 3000 A main current with a 100 kA interrupting capacity. These ratings support high-demand feeders and motors typical of heavy industry, helping you withstand severe fault currents without damaging downstream equipment. Use in conjunction with a properly specified trip unit for complete coordination.
Yes. The three-pole, standard-frame design fits common MCC footprints, and the drawout vertical mounting with motorized racking simplifies maintenance in crowded panels. While it arrives without a trip unit, it can be paired with Power Xpert Release for precise coordination, improving uptime in motor-driven processes and reducing changeover time during servicing.
The product carries UL Listed, CE Marked, and CSA Certified status, among other approvals like KEMA certification. These certifications support global compliance, supplier qualification, and audit readiness, allowing you to meet regulatory targets across regions without compromising performance or safety.
The unit’s motorized racking and drawout design reduce maintenance time and exposure risk, improving uptime and personnel safety. When paired with Power Xpert Protection Manager and optional release trip units, you gain better protection coordination, faster fault isolation, and lower lifecycle costs through extended equipment life and fewer unscheduled outages.