Eaton MPSC303HEAXX2C Magnum LV Breaker - UL Listed

Part Number: MPSC303HEAXX2C
MPSC303HEAXX2C
Manufacturer
Eaton
Part number
MPSC303HEAXX2C
Category

Quick Summary

Eaton MPSC303HEAXX2C Magnum low voltage power circuit breaker protects electrical distribution in industrial panels. In demanding environments, downtime and miscoordination cost time and money, making reliable protection essential. This model carries UL Listed, CE Marked, and NEMA Compliant certifications, along with ANSI/CSA accreditation, to support global installations and regulatory alignment. With the Power Xpert Release PXR20 LSIG trip unit, fixed horizontal mounting, and a 3000 A frame rating, it delivers scalable protection while simplifying installation and maintenance for panel builders and OEMs. The rugged construction suits motor control centers, switchgear, and large distribution blocks where predictable coordination matters.

Product Information

Extended Description

MPSC303HEAXX2C Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 3000 A, 100 kA, Three-pole, Fixed horizontal mounting, PXR20 LSIG trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC303HEAXX2C
UPC
786689637590
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
SABA Listed CCC Marked CE Marked NEMA Compliant
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 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 - MPSC303HEAXX2C Eaton Specification Sheet - MPSC303HEAXX2C 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 standard-frame design supports common industrial distribution panels, providing consistent protection and easier spare parts planning across multiple lines. This translates to faster installations, fewer integration issues, and reduced total cost of ownership in OEM builds and retrofits. The PXR20 LSIG trip unit enables adjustable protection curves and selective coordination, limiting arc exposure and unplanned downtime while meeting demanding NFPA and industry standards. In practice, users see improved fault isolation and clearer maintenance paths in high-current feeds, with better visibility into protection settings via the Power Xpert ecosystem. A 3000 A frame rating paired with a 100 kA interrupting capacity ensures feeders remain protected during high fault currents, reducing the risk of collateral damage. Fixed horizontal mounting simplifies installation in tall or dense enclosures, saving space and simplifying field wiring. Compliance and certifications—UL Listed, CE Marked, NEMA Compliant, ANSI CSA Certified, CCC Marked, SABA Listed—support multi-region deployments and supply chain confidence, complemented by access to Magnum renewal parts and compatible accessories for long-term serviceability.

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FAQs

The MPSC303HEAXX2C uses a three-pole, standard-frame design with fixed horizontal mounting, making it compatible with common industrial distribution panels, MCCs, and switchgear. It aligns with Magnum PXR trip units and existing Eaton protection strategies for straightforward retrofits and consistent spare-part inventory.
Key specs include three poles (3-pole), standard frame, a 3000 A current rating, and a 100 kA interrupting rating. It employs the PXR20 LSIG trip unit for adjustable protection curves and reliable fault isolation in demanding environments.
Yes. It is UL Listed and CE Marked, with ANSI/CSA certifications and NEMA compliance. The PXR20 LSIG trip unit supports selective coordination, helping minimize nuisance trips and improve protection performance across multi-source feeds.
Ideal for motor control centers, power distribution panels, and large distribution enclosures in manufacturing, water treatment, and process industries where high fault currents and precise protection coordination are common.
Eaton provides Magnum renewal parts and accessories, along with available manuals and application papers to support ongoing serviceability, lifecycle management, and coordinated protection strategies in steady-state operations.