Eaton MPS85N4MEAXXSW Magnum LV Circuit Breaker - UL Listed

Part Number: MPS85N4MEAXXSW
MPS85N4MEAXXSW
Manufacturer
Eaton
Part number
MPS85N4MEAXXSW
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects motor drives and switchgear by delivering fast fault interruption. Sizing, coordination, and maintenance in crowded panels often slow downtime, increase risk, and drive costs. UL Listed, CE Marked, and NEMA compliant, the Magnum line supports global deployment and coordinated protection strategies. By combining robust interrupting capacity with flexible mounting and accessible documentation, this solution helps engineers design safer, more reliable power systems. As applications expand into data centers, manufacturing lines, and process plants, reliable protection translates into reduced downtime and lower total cost of ownership.

Product Information

Extended Description

MPS85N4MEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (NNAABBCC), 85 kA, Four-pole, Drawout vertical with motorized racking mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS85N4MEAXXSW
UPC
786689636630
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CCC Marked CE Marked NEMA Compliant SABA Listed
Certifications
UL Listed Lloyd's Register Certified ANSI CSA Certified KEMA Certified 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 Power Xpert Release trip unit for Magnum PXR circuit breakers PXR 20/25 user manual Power Xpert Release trip unit for Magnum PXR circuit breakers PXR 20/25 user manual Power Xpert Release trip unit for Magnum PXR circuit breakers PXR 20/25 user manual 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 - MPS85N4MEAXXSW Eaton Specification Sheet - MPS85N4MEAXXSW Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Safer by design: arc energy reduction techniques Safer by design: arc energy reduction techniques Safer by design: arc energy reduction techniques
Drawout vertical construction with motorized racking mounting enables remote, staged maintenance and faster service, reducing exposure to live parts and minimizing downtime in busy switchgear environments. This translates to safer field work and quicker equipment turnover, especially in high-availability facilities such as data centers and process plants. The four-pole design delivers an 85 kA interrupting capacity with a 5000 A frame, supporting selective coordination and reliable feeder protection for large motor loads and heavy-demand applications. Its physical footprint (16.3 in depth, 16.8 in height, 44.1 in width) and weight (319 lb) ensure compatibility with standard double-wide frames and existing enclosures, simplifying retrofits and reducing installation costs. Certifications and regulatory compliance (UL Listed, CE Marked, NEMA Compliant, plus other recognized bodies) streamline global deployments and customer audits. Comprehensive Eaton documentation and available PXR guidance accelerate commissioning and lifecycle support, while the no-trip-unit baseline allows tailored protection with Power Xpert Release as needed. Compatibility with maintenance tooling and zone-selective interlocking papers further supports safer, faster lockdowns and easier future upgrades.

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FAQs

MPS85N4MEAXXSW uses a drawout vertical mounting with motorized racking, designed for Magnum switchgear and motor control centers. It supports integration with PXR trip units where electronic protection is implemented. Verify enclosure dimensions (16.3 in x 16.8 in x 44.1 in) and the 319 lb weight to ensure fit, service access, and safe removal/ seating during maintenance.
This model provides 85 kA interrupting capacity and is a four-pole, double standard frame device. It accommodates a 5000 A frame rating, offering robust protection for high-current feeders in industrial plants, with compatibility for selective coordination and reliable fault isolation in complex power distribution systems.
The MPS85N4MEAXXSW ships without a trip unit by default, but it is compatible with Power Xpert Release options for enhanced electronic protection. When retrofitting, follow Eaton’s PXR product aids and installation guides to configure the trip unit, settings, and integration with protection management software.
Documentation should include UL Listed status, CE Marking, and NEMA compliance, along with additional certifications such as CCC Marked and SABA Listed as applicable to your region. These qualifications support global deployments, customer audits, and adherence to safety and performance standards in diverse markets.
Motorized racking enables remote, staged seating and removal, reducing exposure to live parts and accelerating maintenance windows. This lowers downtime, speeds part swaps, and improves mean time to repair (MTTR). Over the life of a large installation, these gains translate into lower operational risk, reduced labor costs, and higher overall equipment uptime.