Eaton MPSC303HEAXX2F Magnum low voltage breaker - UL Listed

Part Number: MPSC303HEAXX2F
MPSC303HEAXX2F
Manufacturer
Eaton
Part number
MPSC303HEAXX2F
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects industrial electrical systems by interrupting fault currents in motor control centers and switchgear, delivering fast, reliable isolation when faults occur. Engineers often struggle with nuisance trips, limited selectivity between feeders, and downtime caused by mis-timed protection schemes, which can drive maintenance costs and reduce plant uptime. This product carries UL Listed and CE Marked certifications alongside NEMA compliance, providing global regulatory alignment and predictable performance across diverse installations. Designed for seamless integration with Power Xpert Protection Manager and Magnum PXR trip units, it supports scalable protection, faster diagnostics, and easier maintenance in modern industrial environments.

Product Information

Extended Description

MPSC303HEAXX2F Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 3000 A, 100 kA, Three-pole, Fixed horizontal mounting, PXR20 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC303HEAXX2F
UPC
786689637606
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
CCC Marked NEMA Compliant SABA Listed CE Marked
Certifications
ANSI Lloyd's Register Certified CSA Certified KEMA 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 - MPSC303HEAXX2F Eaton Specification Sheet - MPSC303HEAXX2F 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
High interrupting capacity supports large service entrances and demanding loads, reducing the risk of cascading faults and enabling safer, faster disconnects. Business impact: improved system reliability, less arc-flash exposure, and lower risk of collateral damage during faults. Application: panel boards, MCCs, and large distribution networks benefit from consistent protection and clear fault signals. Three-pole, fixed horizontal mounting simplifies installation in existing racks and frames, shortening commissioning time and minimizing field wiring errors. Business impact: installation efficiency, reduced labor costs, and repeatable results across multiple sites. The Magnum PXR20 LSIGAM trip unit delivers precise protection curves and selective coordination with Power Xpert Protection Manager, enabling proactive maintenance and minimized nuisance trips. Application: motor-controlled lines and critical feeders benefit from fast, reliable tripping and diagnostics. The system supports centralized monitoring and remote configuration, improving uptime and lifecycle management. Business impact: lower maintenance overhead and improved asset utilization. Compatibility with Power Xpert Protection Manager provides a unified view of protection schemes, enabling quicker startup, easier change management, and data-driven decisions. Application: data centers, process plants, and manufacturing lines gain visibility and control. The device complies with industry standards, including UL Listed, CE Marked, and NEMA compliance, helping you meet global regulatory requirements with confidence. Business impact: reduced audit risk and standardized protection across facilities. Installation and maintenance are streamlined by standard frame sizing and compatible mounting, reducing spare parts inventory and accelerating replacements. Application: retrofit projects and new builds alike benefit from predictable fit and rapid deployment. Overall, these features translate to a lower total cost of ownership, higher uptime, and improved safety in mission-critical environments.

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FAQs

The MPSC303HEAXX2F uses a standard Magnum frame with fixed horizontal mounting and three-pole construction, facilitating straightforward replacement in existing panels. Dimensions are 14.6 in depth, 16.8 in height, and 16.2 in width, with a weight of 118 lb, making on-site handling predictable. Ensure mounting clearance and align with upstream devices for proper trip-unit access and wiring routing.
Key specs include a 3000 A interrupting capacity and a 100 kA short-circuit rating, three-pole configuration, and a Magnum PXR20 LSIGAM trip unit. These features enable robust selective coordination, fast fault interruption, and compatibility with Power Xpert Protection Manager for centralized monitoring and configuration.
Ideal for motor control centers, large panel boards, and critical process feeders in manufacturing, water treatment, and data center environments. Its high rating and LSIGAM trip unit support selective coordination, reducing nuisance trips and enabling safe, orderly fault isolation in complex distribution schemes.
UL Listed and CE Marked certifications, alongside NEMA compliance, CCC, and other industry attestations, provide regulatory assurance across global sites. This mix supports consistent performance, reduces audit findings, and eases cross-border deployments for multinational facilities.
Protection Manager integration offers centralized start-up, monitoring, and diagnostics for Magnum MXR/ PXR trip units, enabling faster issue identification and coordinated maintenance planning. The result is improved uptime, lower maintenance labor, and better protection alignment with evolving plant requirements.