Eaton MPS8503HEAXX2A Magnum LV Circuit Breaker - UL Listed

Part Number: MPS8503HEAXX2A
MPS8503HEAXX2A
Manufacturer
Eaton
Part number
MPS8503HEAXX2A
Category

Quick Summary

Electric power systems rely on the Eaton Magnum low voltage power circuit breaker to provide robust overcurrent protection for industrial panels and motor feeders. When protection coordination and uptime matter, engineers contend with nuisance trips and troubleshooting delays. This MPS8503HEAXX2A combines a three-pole Magnum frame, fixed horizontal mounting, and a Power Xpert Release PXR20 LSI trip unit to deliver precise, reliable protection in demanding environments. It carries CE marking, UL listing, and ANSI/KEMA certifications to meet global regulatory requirements and installation standards. By pairing rugged construction with intelligent protection, it supports predictable operation, easier maintenance, and reduced total cost of ownership across manufacturing, processing, and distribution facilities. It also aligns with Magnum components for streamlined procurement and compatibility.

Product Information

Extended Description

MPS8503HEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (ABCABC), 85 kA, Three-pole, Fixed horizontal mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8503HEAXX2A
UPC
786689629519
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
CCC Marked NEMA Compliant SABA Listed CE Marked
Certifications
ANSI KEMA Certified CSA Certified Lloyd's Register 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 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 - MPS8503HEAXX2A Eaton Specification Sheet - MPS8503HEAXX2A 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: The PXR20 LSI trip unit provides adjustable instantaneous protection and ambient temperature compensation, delivering enhanced selective protection across multiple feeders. Business impact: tighter coordination reduces nuisance trips, improves operator safety, and lowers arc-flash exposure during faults. Application: motor feeders and critical process lines benefit from reliable protection.Feature → Business Impact → Application: Fixed three-pole Magnum frame with horizontal mounting simplifies installation and panel fit. Business impact: faster commissioning and reduced field wiring complexity. Application: panelboards and control cabinets in new builds or retrofits.Feature → Business Impact → Application: 85 kA interrupting capacity with a 5000 A rating delivers high fault withstand capability. Business impact: increases system reliability and minimizes downstream damage during short circuits. Application: large motor and high-energy distribution networks.Feature → Business Impact → Application: Magnum PXR compatibility enables seamless replacement and lifecycle management. Business impact: procurement simplicity, stock optimization, and upgrade pathways. Application: upgrading legacy protection schemes across facilities.Feature → Business Impact → Application: Comprehensive certifications (CE, UL Listed, NEMA Compliant, ANSI/KEMA) provide regulatory assurance. Business impact: smoother audits, faster commissioning, and reduced risk in global deployments. Application: multinational manufacturing sites and process industries requiring stringent compliance.

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FAQs

Yes. The MPS8503HEAXX2A uses the PXR20 LSI trip unit and Magnum frame, ensuring seamless integration with existing Magnum protection strategies, panel footprints, and field wiring practices. Its fixed horizontal mounting and three-pole design simplify retrofits and new installations alike.
Key specs include a three-pole configuration, 85 kA interrupting capacity, and a 5000 A current rating (ABCABC). The PXR20 LSI trip unit provides advanced protection logic with ambient compensation for precise coordination in motor feeders and distribution panels.
Yes. With 85 kA interrupting capacity and compatibility with Magnum protection units, it delivers reliable short-circuit withstand and supports selective coordination to minimize downtime in motor control centers and process lines.
The device carries UL Listed, CE marking, NEMA compliance, ANSI/KEMA certification, and additional third-party attestations. These certifications verify safety, performance, and regulatory compliance across global installations, easing audits and procurement.
Consider the 31.1 in width, 16.8 in height, 16.3 in depth, and 237 lb weight when planning panel space and lifting arrangements. Routine checks of the PXR20 trip unit and periodic coordination reviews help sustain reliability and reduce downtime over the device lifecycle.