Eaton MPS8503HEAXX2F Magnum LV Circuit Breaker - UL Listed

Part Number: MPS8503HEAXX2F
MPS8503HEAXX2F
Manufacturer
Eaton
Part number
MPS8503HEAXX2F
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker provides reliable overcurrent protection for industrial power distribution in manufacturing and process facilities. Engineers often struggle with protecting critical loads while maintaining selectivity and minimizing nuisance trips during ramping loads. This model carries UL Listed, CE Marked, and ANSI/CSA certifications, with compatibility for Power Xpert Release PXR20 trip units to support coordinated protection. By combining robust protection with modular PXR integration, the solution reduces downtime, improves maintenance efficiency, and supports scalable, compliant growth across global electrical distributions.

Product Information

Extended Description

MPS8503HEAXX2F Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (ABCABC), 85 kA, Three-pole, Fixed horizontal mounting, PXR20 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8503HEAXX2F
UPC
786689629533
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
NEMA Compliant CCC Marked CE Marked SABA Listed
Certifications
ANSI CSA Certified KEMA Certified UL Listed Lloyd's Register 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 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 - MPS8503HEAXX2F Eaton Specification Sheet - MPS8503HEAXX2F 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
The PXR20 LSIGAM trip unit delivers configurable overcurrent protection, improving selectivity and reducing nuisance trips. This translates to shorter downtime and safer maintenance windows in demanding industrial lines. Applications include production cells and motor control centers where precise protection is critical and downtime carries a high cost. Three-pole, fixed horizontal mounting streamlines installation and panel integration, reducing commissioning time and enabling straightforward retrofit into existing switchgear without extensive rewiring. This compatibility translates to faster project turnover and lower labor costs on site. An 85 kA interrupting rating provides high fault-current resilience, enhancing personnel safety and equipment longevity in switchgear assemblies found in heavy manufacturing, oil & gas, and power-intensive facilities. Double standard frame design offers compatibility with Magnum PXR units and supports easy upgrades or replacements within legacy installations, limiting operational disruption during modernization projects. Industry certifications—UL Listed, CE Marked, ANSI CSA Certified—facilitate multi-region procurement and compliance, reducing supplier fragmentation and accelerating quote-to-order cycles for global facilities. The breaker’s robust construction, with large dimensions and weight, signals durability in demanding environments and simplifies handling during installation and service. Access to Eaton’s specification sheets and application notes further streamlines engineering reviews and lifecycle planning.

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FAQs

The MPS8503HEAXX2F uses the Power Xpert Release PXR20 trip unit, designed for seamless integration with Magnum PXR-enabled switchgear. It installs in standard Magnum double-frame configurations and aligns with fixed horizontal mounting, enabling quick retrofits with minimal panel modification while preserving coordination with upstream and downstream protection devices.
The unit features a three-pole configuration with an 85 kA interrupting rating and PXR20 LSIGAM trip unit for selective coordination. It is mounted fixed horizontally and measures 16.3 in depth, 16.8 in height, and 31.1 in width, with a weight of 237 lb. These specs translate to robust fault interruption, reliable protection in demanding loads, and predictable response in motor and process circuits.
Yes. The MPS8503HEAXX2F carries UL Listed, CE Marked, and ANSI CSA certifications, along with additional approvals such as KEMA, Lloyd's Register, DNV GL, and ABS. This broad certification portfolio supports procurement across multiple regions and simplifies regulatory compliance for global facilities.
For fixed horizontal mounting, ensure proper panel space, adequate clearance for wiring and cooling, and compatibility with the Magnum frame ecosystem. The 16.3 x 16.8 x 31.1 inch footprint and 237 lb weight inform handling requirements and rack or cabinet fitting. Use the provided manuals to verify torque specs, wiring diagrams, and airflow requirements to prevent overheating and ensure reliable operation.
The PXR20-based protection enables precise coordination, reducing nuisance trips and unplanned downtime, which lowers production losses. Its durable construction supports longer MTBF, while certified parts and online manuals streamline maintenance planning. Although initial cost is higher, the improved uptime, faster commissioning, and streamlined spare-part management contribute to a favorable total cost of ownership for multi-site industrial deployments.