Eaton Magnum low-voltage power circuit breaker MPS8503VEAXX2S - 85 kAIC

Part Number: MPS8503VEAXX2S
MPS8503VEAXX2S
Manufacturer
Eaton
Part number
MPS8503VEAXX2S
Category

Quick Summary

Eaton Magnum low-voltage power circuit breaker protects complex electrical panels and switchgear in industrial automation environments. Uptime suffers when fault currents are high or protection coordination is unclear; this unit's PXR trip logic delivers rapid, selective clearing. It carries UL Listed, CE Marked, and NEMA compliance to support global installations and safety requirements. Compatible with Magnum PXR trip units and fixed vertical mounting, it simplifies panel design and maintenance in modern switchgear. Its 5000 A Iu rating and 85 kAIC interrupt capability help lower downtime and reduce spare-parts risk in high-energy environments, aligning with cost-of-ownership goals.

Product Information

Extended Description

MPS8503VEAXX2S Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (ABCABC), 85 kA, Three-pole, Fixed vertical mounting, PXR25 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8503VEAXX2S
UPC
786689635657
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
SABA Listed NEMA Compliant CE Marked CCC Marked
Certifications
KEMA Certified Lloyd's Register Certified CSA Certified UL Listed ANSI DNV GL Certified ABS Certified
Frame
Double standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Trip Type
PXR25 LSIG ARMS
Number of poles
Three-pole
Rated uninterrupted current (Iu)
5000 A
Interrupt rating
85 kAIC
Interrupt rating
85 kAIC
Rated uninterrupted current (Iu)
5000 A
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 Magnum PXR low voltage power circuit breakers user manual Magnum PXR low voltage power circuit breakers user manual Magnum PXR low voltage power circuit breakers user manual Circuit Protection, Power Breakers, Contactors and Fuses, Volume 4, Tab 3 Power Xpert Protection Manager x32 22.06 1 Power Xpert Protection Manager x32 22.06 1 Eaton Specification Sheet - MPS8503VEAXX2S Eaton Specification Sheet - MPS8503VEAXX2S 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 interrupt rating and Iu specification drive resilience by absorbing fault energy at 85 kAIC and 5000 A Iu, protecting busbars and downstream equipment. In practice, this means fewer unplanned outages and longer equipment life in critical loads such as manufacturing lines and data centers. The Magnum PXR25 LSIG ARMS trip unit enables precise protection coordination, reducing nuisance trips and enabling upstream devices to stay online during faults. This translates to faster service restoration and simpler maintenance planning in power distribution centers and panelboards. Double standard frame and fixed vertical mounting offer robust mechanical stability and straightforward installation within existing rack layouts, while three poles support balanced, three-phase protection in industrial systems. Compliance with UL/ANSI/NEMA and global certification streams simplifies procurement across regions. Renewal parts from the Magnum family further extend lifecycle and reduce total cost of ownership over time.

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FAQs

The MPS8503VEAXX2S is specified for fixed vertical mounting within Magnum frame assemblies. This orientation supports predictable clearance, straightforward wiring, and reliable mechanical stability in dense panel spaces. Compatibility with the Magnum PXR trip units ensures coordinated protection while preserving the intended three-pole geometry for balanced phase protection.
Key ratings include a rated Iu of 5000 A and an 85 kAIC interrupt rating across a three-pole configuration. The PXR trip unit provides LSIG ARMS protection, enabling precise, selective tripping. These features collectively enhance fault energy handling, minimize arc exposure, and improve system reliability in demanding industrial environments such as manufacturing and large switchgear assemblies.
Yes. With a 5000 A Iu rating and 85 kAIC interrupt capacity, the breaker can protect large, high-energy loads typical of data centers and industrial production lines. The Magnum PXR trip unit enables selective coordination to prevent unnecessary trips, helping maintain uptime for critical processes and reducing collateral outages during faults.
This model carries UL Listed, ANSI, CSA, CE Marked, and NEMA compliance, along with KEMA and Lloyd's Register certifications. CCC Marked and other listings support global procurement and multi-region installations, simplifying compliance documentation, supplier qualification, and regulatory acceptance for worldwide projects.
Magnum renewal parts and accessories are available to sustain performance and extend lifecycle, including trip-unit replacements and related components. Utilizing renewal parts reduces downtime during maintenance windows, lowers total cost of ownership, and preserves protection fidelity for years of service in large motor and distribution applications.