Eaton MPSC404WEAXXSW Magnum LV Breaker - UL Listed

Part Number: MPSC404WEAXXSW
MPSC404WEAXXSW
Manufacturer
Eaton
Part number
MPSC404WEAXXSW
Category

Quick Summary

The Eaton Magnum low voltage power circuit breaker provides reliable overcurrent protection for industrial power distribution applications. In demanding environments, engineers often contend with limited panel space, rising maintenance costs, and upgrade constraints; this unit addresses those challenges with a robust, field-ready design. This breaker carries UL Listed, CE Marked, and NEMA compliance, with CSA and Lloyd's Register certifications supporting global operations. Built for retrofit in modern control panels and machine rooms, it also offers a clear upgrade path to Power Xpert Release trip units, enabling future protection enhancements while preserving existing physical footprint and wiring layouts.

Product Information

Extended Description

MPSC404WEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (NNABCABC), 100 kA, Four-pole, Drawout vertical mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC404WEAXXSW
UPC
786689633646
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CCC Marked SABA Listed CE Marked NEMA Compliant
Certifications
CSA Certified UL Listed Lloyd's Register Certified ANSI KEMA 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 x64 22.6 1 Power Xpert Protection Manager x64 22.6 1 Eaton Specification Sheet - MPSC404WEAXXSW Eaton Specification Sheet - MPSC404WEAXXSW Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Cyber security white paper Cyber security white paper Cyber security white paper
Feature: Four-pole, drawout vertical mounting enables easier installation and maintenance; Business Impact: reduces panel downtime during inspections and replacements, improving overall equipment uptime in lean manufacturing environments; Application: suitable for large panelboards and machine-control cabinets where space is at a premium. Feature: 4000 A frame with 100 kA interrupting capacity provides robust protection against high fault currents; Business Impact: enhances system reliability and protects feeders from catastrophic faults, lowering risk of collateral damage in distribution rooms; Application: critical power distribution sites with elevated fault current levels. Feature: No trip unit by default with an upgrade path to Magnum PXR Power Xpert Release trip units; Business Impact: offers a future-proof protection strategy without forklift upgrades, reducing lifecycle costs; Application: machinery and process lines that may need staged protection upgrades. Feature: Comprehensive certifications including UL Listed, CE Marked, NEMA Compliant, CSA Certified, and Lloyd’s Register; Business Impact: simplifies regulatory approvals and global deployment; Application: multinational facilities with varied compliance requirements. Feature: Drawout design and clear cataloging facilitate compatibility checks and field verification; Business Impact: speeds commissioning and reduces commissioning errors; Application: new installations and panel rebuilds where quick verification matters.

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FAQs

The MPSC404WEAXXSW uses a standard four-pole, drawout design with vertical mounting, simplifying retrofit into existing control panels and distribution boards. Its 16.3 in depth, 16.8 in height, and 44.1 in width should be checked against current rack dimensions. Upgrade options via Magnum PXR trip units allow future protection enhancements without changing the physical footprint.
Key specs include four poles, 100 kA interrupting capacity, and a 4000 A frame rating. These specs determine the maximum fault current the breaker can interrupt, the physical size for panel space planning, and suitability for high-current feeders in industrial installations. The unit ships without a trip unit, with upgrade potential to PX R for tailored protection.
Yes, the MPSC404WEAXXSW is compatible with Magnum PXR trip units, which support selective coordination schemes when properly tuned. For motor control centers, plan selective coordination studies to ensure upstream devices coordinate with downstream breakers, minimizing unnecessary power outages while protecting critical loads.
The breaker is UL Listed and CE Marked, with NEMA compliance and CSA certification noted in its specifications. Additional certifications include Lloyd’s Register, ANSI, KEMA, DNV GL, and ABS. These certifications support global deployment, risk management, and meeting regulatory requirements across industries and regions.
The drawout vertical mounting streamlines maintenance and inspection, reducing downtime. The upgrade path to Power Xpert Release trip units enables future protection enhancements without replacing hardware, limiting lifecycle costs. Global certifications and a robust interrupting capacity help protect downstream equipment and improve overall system reliability.