Eaton MPSC303VEAXXSW Magnum LV Power Breaker - UL Listed

Part Number: MPSC303VEAXXSW
MPSC303VEAXXSW
Manufacturer
Eaton
Part number
MPSC303VEAXXSW
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker provides reliable overcurrent protection for electrical distribution panels in industrial facilities. It helps engineers avoid costly downtime by delivering precise tripping characteristics and straightforward installation in panelboards. UL Listed, CSA Certified, and CE Marked certifications back its compliance and safety performance across global environments. With a standard frame, fixed vertical mounting, and no trip unit, it supports compact integration where space and modularity matter. By aligning with existing Eaton protection ecosystems and Power Xpert tools, it delivers faster trench-to-test results and reduces total cost of ownership. The product supports selective coordination strategies and reliability across critical loads.

Product Information

Extended Description

MPSC303VEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 3000 A, 100 kA, Three-pole, Fixed vertical mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC303VEAXXSW
UPC
786689637835
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
UL Listed Lloyd's Register Certified CSA Certified KEMA Certified ANSI 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 - MPSC303VEAXXSW Eaton Specification Sheet - MPSC303VEAXXSW 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
Three-pole Magnum PXR with a standard frame and fixed vertical mounting enables streamlined installation and precise coordination in space-constrained panels. Business impact: faster commissioning, reduced square-footprint requirements, and improved safety margins in panelboard assemblies. Application: panelboards in manufacturing facilities and process plants benefit from predictable protection and straightforward retrofitting. High fault-current tolerance with 3000 A capacity and 100 kA short-circuit rating protects feeders and motor circuits, reducing upstream device stress and unplanned downtime during faults. Application: large motor drives and critical feeders in industrial campuses gain resilience and reliability. Certifications and compliance—UL Listed, CSA Certified, and CE Marked—facilitate global deployments and simplify cross-border audits, lowering project risk. Business impact: smoother procurement, fewer compliance delays, and enhanced customer confidence. The Magnum line’s compatibility with Power Xpert Protection Manager and release trip-unit ecosystems supports enhanced visibility, faster fault isolation, and scalable protection schemes. Application: enterprise and process industries implementing protective relays and centralized protection management. Renewal parts and accessories for Magnum PXR breakers are available, enabling longer lifecycle management, easier maintenance planning, and reduced spare-part inventories. Business impact: lower total cost of ownership and better uptime. Space-efficient fixed vertical mounting and standard frame design enable straightforward integration into existing control architectures, minimizing engineering changes and installation time. Application: retrofit projects and new builds seeking compact, standards-based protection.

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FAQs

The MPSC303VEAXXSW uses fixed vertical mounting and a standard frame, designed for three-pole applications in conventional panelboards. It fits into common low-voltage switchgear and distribution assemblies, offering straightforward alignment with existing bus stacks and enclosure interfaces. For best results, follow Eaton installation guidelines and ensure adequate clearance for heat dissipation and inspection access.
The breaker is engineered to interrupt high fault currents up to 100 kA while carrying up to 3000 A in continuous service. This enables robust protection for large feeders and motor circuits, reduces stress on upstream devices, and minimizes fault progression. Proper coordination with upstream devices is essential to ensure selective tripping and rapid fault isolation.
Yes, it supports selective coordination within a broader protection scheme. To implement, consult selective coordination guidelines (IA0120000E3) and plan upstream-downstream coordination using the Magnum PXR protection approach. While the MPSC303VEAXXSW has no trip unit installed, you can coordinate with upstream relays and units to achieve desired selectivity and fault isolation behavior.
This model is UL Listed and CSA Certified, with CE Marked compliance. Additional recognitions include Lloyd's Register and other authoritative certifications, reflecting adherence to product safety, performance, and environmental standards. These certifications support global project execution and simplify regulatory acceptance across diverse markets.
Plan for renewal parts and accessories available from Eaton to extend lifecycle and minimize downtime. The protected equipment, combined with centralized protection management (Power Xpert), reduces maintenance frequency and accelerates fault diagnostics. The result is lower total cost of ownership through improved uptime, streamlined spares strategy, and predictable service intervals.