Eaton MPS8503HEAXX2C LV Circuit Breaker - UL Listed

Part Number: MPS8503HEAXX2C
MPS8503HEAXX2C
Manufacturer
Eaton
Part number
MPS8503HEAXX2C
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects motor feeders in industrial plants. Sizing, coordination, and retrofit compatibility often slow projects; this unit simplifies installation with fixed horizontal mounting and a robust PXR20 LSIG trip. UL Listed, CE Marked, and ANSI/CSA certifications ensure global compliance and safer operation. For reliability and long-term value, it aligns with Power Xpert protection and supports selective coordination in complex motor systems, helping you meet uptime targets and reduce lifecycle costs. This combination of rugged protection and easy integration positions MPS8503HEAXX2C as a dependable choice for panel builders, OEMs, and maintenance teams alike.

Product Information

Extended Description

MPS8503HEAXX2C Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (ABCABC), 85 kA, Three-pole, Fixed horizontal mounting, PXR20 LSIG trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8503HEAXX2C
UPC
786689629526
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
KEMA Certified Lloyd's Register Certified UL Listed ANSI CSA 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 - MPS8503HEAXX2C Eaton Specification Sheet - MPS8503HEAXX2C 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: PXR20 LSIG trip unit delivers precise, adjustable protection and easy field upgrades. Business Impact: Improves reliability by reducing nuisance trips and enables accurate protection coordination across feeders and motors. Application: Ideal for motor control centers and distribution panels where selectivity and fast clearing are critical. Feature: Fixed horizontal mounting on a double standard frame. Business Impact: Simplifies installation in tight panel layouts and accelerates retrofit projects, lowering commissioning time and labor costs. Application: Suitable for existing enclosures and retrofit programs in factories and process plants. Feature: Three-pole design with 85 kA interrupting rating. Business Impact: Provides robust fault handling for demanding industrial loads while maintaining system integrity during short circuits. Application: Main feeders and branch circuits in high-availability applications. Feature: Magnum PXR family compatibility with LSIG trip units and Power Xpert ecosystem. Business Impact: Streamlines spare-part handling and future upgrades, preserving engineering investments. Application: Systems employing Power Xpert Protection Manager for centralized protection and monitoring. Feature: Comprehensive certifications and compliance (UL Listed, ANSI/CSA, CE, NEMA). Business Impact: Reduces risk during audits and fast-tracks acceptance in global installations. Application: Manufacturing, oil & gas, and process industries requiring rigorous regulatory adherence. Feature: Optional zone selective interlocking and related Eaton documentation. Business Impact: Enhances workplace safety and minimizes arc energy through coordinated interlocks. Application: Large motor systems and looped distribution networks where ZSI is advantageous.

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FAQs

The MPS8503HEAXX2C is designed for fixed horizontal mounting in standard low-voltage panels, including motor control centers and distribution panels. Its three-pole construction and double frame size simplify retrofits and ensure secure installation in space-limited enclosures.
Key ratings include a three-pole configuration with an 85 kA interrupting rating and a 5000 A short-circuit rating in the Magnum PXR family. The unit uses the PXR20 LSIG electronic trip unit for coordinated protection and flexible protection settings, with dimensions around 16.3 in L, 16.8 in H, and 31.1 in W, weighing approximately 237 lb.
Yes. The PXR20 LSIG trip unit supports selective coordination when paired with appropriate protection studies. Eaton provides application papers and guidance on selective coordination and zone selective interlocking to optimize protection while minimizing arc energy and downtime in motor-driven systems.
The product carries UL Listed, ANSI, CSA certifications, CE marking, and NEMA compliance, along with additional validations from KEMA, Lloyd's Register, DNV GL, and ABS. This broad certification set supports global deployments and rigorous regulatory audits.
The MPS8503HEAXX2C is designed for long service life with minimal maintenance when used within its rated conditions. Maintain spares for the PXR trip unit and related accessories, follow Eaton’s manuals for trips and diagnostics, and leverage Power Xpert Protection Manager for monitoring and proactive maintenance planning to maximize uptime and ROI.