Eaton MPSC254HEAXX2F Magnum LV Circuit Breaker - PXR20

Part Number: MPSC254HEAXX2F
Manufacturer
Eaton
Part number
MPSC254HEAXX2F

Quick Summary

Eaton Magnum low voltage power circuit breaker provides reliable overcurrent protection for panelboards and motor feeders. In dense electrical rooms, nuisance trips and coordination gaps can drive unplanned downtime and costly repairs. This unit carries CE marking, UL listing, and NEMA compliance, complemented by ANSI and Lloyd's Register certifications for global projects. Designed for large feeders and high-current systems, it helps protect assets while simplifying coordination with Magnum PXR trip units. By combining a 2500 A Iu rating with a 100 kAIC interrupt rating, it supports rigorous protection in critical loads. Buyers benefit from field-proven compatibility with Power Xpert Release trip units and proven literature for installation and maintenance.

Product Information

Extended Description

MPSC254HEAXX2F Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 2500 A, 100 kA, Four-pole, Fixed horizontal mounting, PXR20 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC254HEAXX2F
UPC
786689637040
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
21.2 in
Product Weight
160 lb
Compliances
CCC Marked SABA Listed CE Marked NEMA Compliant
Certifications
ANSI Lloyd's Register Certified KEMA Certified UL Listed CSA Certified ABS Certified DNV GL Certified
Frame
Standard
Number of poles
Four-pole
Type
Magnum PXR
Frame
Standard
Series
Magnum
Trip Type
PXR20 LSIG ARMS
Number of poles
Four-pole
Rated uninterrupted current (Iu)
2500 A
Interrupt rating
100 kAIC
Interrupt rating
100 kAIC
Rated uninterrupted current (Iu)
2500 A
High interrupt rating of 100 kAIC provides fast fault clearance, protecting downstream equipment and reducing arc energy exposure in critical power paths. Business impact: minimized equipment damage and shorter downtime during short circuits, essential for manufacturing lines and data centers. Application: large motor feeders and heavy load centers benefit from robust protection. The 2500 A Iu rating supports sizable feeders without upstream burdens, enabling fewer devices in a single feeder and streamlined panels. This translates to cost savings in space, hardware, and maintenance. Four-pole standard frame with fixed horizontal mounting simplifies installation, reduces rack space requirements, and improves alignment in MCCs. Application: new builds and retrofit projects where clean, rapid mounting matters. The PXR20 LSIGAM electronic trip unit delivers precise, coordinated protection with zone-selective interlocking options, lowering nuisance trips and enabling selective coordination across feeders. Business impact: improved reliability and easier commissioning for complex power distribution centers. Certifications and compliances across UL, CSA, CE, ANSI, and international marks ensure regulatory readiness for global facilities, reducing project risk. Application: multinational plants, process industries, and critical infrastructure. Comprehensive documentation and supporting literature—including application papers and product aids—assist installation teams, accelerate start-up, and lower lifecycle costs. Business value: faster ROI through reduced commissioning time and sustained uptime across the facility.

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FAQs

What mounting and terminal arrangements are recommended for this unit? The MPSC254HEAXX2F uses fixed horizontal mounting with a standard frame, simplifying alignment in MCCs. Ensure adequate clearance, correct busbar phasing, and torque specifications per the Magnum PXR installation guides. Refer to the official manuals for wiring schemes and safety clearances before commissioning.
The PXR20 LSIGAM provides advanced protection logic with ARMS options for zone-selective interlocking, reducing unnecessary trips while maintaining precise fault clearing. This enhances coordination across feeders and improves system availability in manufacturing lines and critical loads. Use application notes to tailor trip curves to your specific load profile.
This breaker is UL Listed, CSA Certified, and CE Marked, with additional ANSI and Lloyd's Register certifications noted. Compliances include CCC Marked and NEMA Compliant. These marks support cross-border procurement, installation within international standards, and smoother regulatory approvals for multinational facilities.
Best for high-current feeders, motor control centers, and critical process lines requiring strong fault protection. The 2500 A Iu rating and 100 kAIC interrupt capacity support large loads, while the four-pole design aligns with three-phase systems commonly found in data centers and heavy industry.
Magnum PXR units benefit from long service life, availability of renewal parts, and extensive Eaton literature for upkeep. Regular checks of trip unit settings, contact wear, and torque adjustments reduce unexpected failures. Access to application papers and quick-start guides accelerates maintenance planning and reduces downtime during part replacements.