Eaton MPSC404MEAXX2A Magnum low voltage circuit breaker - UL Listed

Part Number: MPSC404MEAXX2A
MPSC404MEAXX2A
Manufacturer
Eaton
Part number
MPSC404MEAXX2A
Category

Quick Summary

Eaton Magnum low voltage circuit breaker MPSC404MEAXX2A is a rugged protection solution for industrial power distribution and panel boards. Engineers rely on reliable tripping and straightforward maintenance, and this unit delivers with a drawout vertical design and motorized racking for fast, safe installation and replacement. UL Listed, CE Marked, and NEMA compliant certifications support global deployment, while additional KEMA and CSA certificates provide extra assurance in harsh environments. The Power Xpert Release trip unit and four-pole construction offer precise protection for large-motor loads, with a 4000 A frame and 100 kA withstand rating. This combination supports compliance, reduces downtime, and enables scalable protection in modern manufacturing and data-center applications.

Product Information

Extended Description

MPSC404MEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NNABCABC), 100 kA, Four-pole, Drawout vertical with motorized racking mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC404MEAXX2A
UPC
786689633141
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CCC Marked SABA Listed NEMA Compliant CE Marked
Certifications
KEMA Certified Lloyd's Register Certified CSA Certified UL Listed 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 - MPSC404MEAXX2A Eaton Specification Sheet - MPSC404MEAXX2A 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: Power Xpert Release (PX R) LSI trip unit enables precise, configurable protection curves and fast fault isolation, reducing unnecessary trips and improving uptime in high-demand motor circuits. Application: large motors, packaging lines, and process equipment benefit from improved selectivity and reduced energy waste. Feature → Drawout vertical with motorized racking simplifies maintenance and hot-swapping of breakers, cutting downtime and improving panel serviceability. Application: data centers and OEM panels where rapid maintenance is critical. Feature → Four-pole, 4000 A frame with a 100 kA short-circuit rating supports heavy startup currents and robust fault tolerance. Application: heavy-use manufacturing and pumping stations requiring strong arc-flash and fault protection. Feature → Global certifications (UL Listed, CE Marked, NEMA Compliant, CCC, CSA, KEMA, Lloyd’s) streamline multi-region installations and regulatory compliance. Application: international projects with strict safety and market access requirements. Feature → Drawout with motorized racking and compatibility with Magnum PX R trip units enables scalable upgrades and retrofit paths. Application: modernization of legacy switchgear and expansion of existing power distribution networks. Insight: this combination delivers measurable outcomes such as reduced downtime, improved protection coordination, and simplified procurement for global operations.

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FAQs

The MPSC404MEAXX2A uses the Power Xpert Release (PX R) 20 LSI trip unit and is designed to work with Magnum PX R systems and Protection Manager workflows. To maximize visibility and coordination, ensure firmware and protection settings are aligned per Eaton's Quick Start Guide and the Magnum PX R user manuals.
The unit is a four-pole, 4000 A frame breaker with a 100 kA short-circuit withstand rating. Physical dimensions are 16.3 in (depth) × 16.8 in (height) × 44.1 in (width), and it weighs approximately 319 lb, which informs panel cutout and space planning.
Yes. With a four-pole configuration, drawout design, motorized racking, and a 100 kA short-circuit rating, it provides robust motor protection and fast fault clearance, essential for data-center HVAC and circulation equipment where uptime matters.
This breaker carries UL Listed, CE Marked, and NEMA compliance, along with CCC, CSA, KEMA, Lloyd’s Register, ANSI, DNV GL, and ABS certifications. These endorsements support regulatory compliance and cross-border deployments.
Ensure a compatible drawout mechanism and motorized racking system are installed, follow Eaton’s mounting guidelines, and verify clearances for safe operation. Use the Zone Selective Interlocking documentation to optimize protection coordination and reduce nuisance trips on multi-breaker assemblies.