Eaton Magnum low voltage circuit breaker MPSC4A4WEAXX2F

Part Number: MPSC4A4WEAXX2F
Manufacturer
Eaton
Part number
MPSC4A4WEAXX2F

Quick Summary

The Eaton Magnum low voltage circuit breaker protects industrial power distribution with a four-pole, drawout vertical-mount design. This unit addresses common maintenance bottlenecks by enabling straightforward replacement and modular trip-unit upgrades. It carries top-tier certifications and compatibility with modern protection schemes, ensuring reliable protection in demanding environments. Key features include UL listing and CE marking for global compliance, CSA certification for North American markets, and NEMA/IEC-aligned performance. By integrating with Power Xpert Release trip units and zone-selective interlocking concepts, this breaker supports improved selectivity, reduced downtime, and safer arc-energy management. For equipment owners, the combination of high interrupt rating and robust lifecycle support translates to lower total cost of ownership and improved uptime.

Product Information

Extended Description

MPSC4A4WEAXX2F Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NABCNABC), 100 kA, Four-pole, Drawout vertical mounting, PXR20 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC4A4WEAXX2F
UPC
786689634919
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CE Marked CCC Marked NEMA Compliant SABA Listed
Certifications
KEMA Certified Lloyd's Register Certified ANSI CSA Certified UL Listed ABS Certified DNV GL Certified
Frame
Double standard
Number of poles
Four-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Trip Type
PXR20 LSIG ARMS
Number of poles
Four-pole
Rated uninterrupted current (Iu)
4000 A
Interrupt rating
100 kAIC
Interrupt rating
100 kAIC
Rated uninterrupted current (Iu)
4000 A
Feature → Business Impact → Application: Four-pole, drawout vertical mounting enables space-efficient installation and rapid maintenance in large switchgear assemblies, reducing commissioning time and service duration on complex lines. This translates to lower field labor costs and faster restoration after trips in data centers and manufacturing floors. Feature → High interrupt rating of 100 kAIC delivers robust fault clearing for feeder and motor-start scenarios, minimizing collateral damage and enabling safer, more reliable electrical distribution in heavy industries. Application: Belted production lines, process plants, and critical infrastructure where uninterrupted power is essential. Feature → Rated uninterrupted current (Iu) of 4000 A and a Magnum PXR trip unit capability (LSIGAM) support precise protection coordination, enabling selective tripping and reduced arc-energy exposure. Application: Large motor control centers and feeder panels requiring tight coordination with upstream protections. Feature → Frame: Double standard with four poles provides compatibility across standard Eaton Magnum PXR configurations, simplifying inventory and lifecycle management. Application: Upgrades and expansions in existing installations with standardized frame requirements. Feature → Certifications and compliances (UL Listed, CE Marked, CSA Certified, NEMA Compliant, etc.) ensure regulatory alignment and easing of cross-border deployments. Application: Global facilities seeking compliant protection devices for design reviews and procurement. Feature → Compatibility with Power Xpert Release trip units and protection-management tools offers enhanced visibility, diagnostics, and remote protection settings. Business impact: Improved maintenance planning, reduced unscheduled downtime, and better risk management. Application: Modern data centers and automated manufacturing where protection analytics drive uptime and safety.

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FAQs

The MPSC4A4WEAXX2F is a four-pole, drawout Magnum PXR unit designed for double-standard frames, matching Eaton Magnum PXR installations. It aligns with common NEMA/IEC configurations and supports vertical mounting in compatible cabinets. When replacing an older unit, verify frame compatibility, busbar footprint, and mounting hardware. The unit's LSIGAM trip unit is compatible with Power Xpert Protection Manager workflows for configuration and diagnostics.
This breaker features a 100 kAIC interrupt rating and 4000 A Iu rated uninterrupted current, making it suitable for high-current feeders and motor-start protection. These specs enable selective protection in large distribution schemes while limiting arc energy and fault propagation. For critical loads, ensure coordination with upstream devices to optimize fault clearance times and minimize unnecessary tripping.
Yes. The Magnum PXR trip unit supports advanced protection strategies, including LSIG-based coordination and interlocking concepts. Zone selective interlocking can reduce arc energy and improve selective tripping. When implementing, plan trip-setpoints, coordination study, and interface with protection management tools to realize faster fault isolation and improved overall protection performance.
The unit is CE Marked, UL Listed, CSA Certified, and NEMA Compliant, among other certifications listed in its datasheets. These certifications help satisfy global procurement standards, customer spec sheets, and internal compliance checks. For cross-border projects, reference UL and CE marks in the bill of materials and ensure documentation aligns with the product’s cited standards.
Standardized frame and modular trip-unit options simplify maintenance, upgrades, and spare-part stocking. Compatibility with renewal parts and protection-management tools reduces downtime during part changes and firmware updates. Use the Power Xpert Protection Manager ecosystem to monitor health, plan preventive maintenance, and optimize protection settings for long-term reliability and cost efficiency.