Eaton MPSC4N3WEAXXSW Magnum circuit breaker - UL Listed

Part Number: MPSC4N3WEAXXSW
MPSC4N3WEAXXSW
Manufacturer
Eaton
Part number
MPSC4N3WEAXXSW
Category

Quick Summary

Eaton Magnum low voltage circuit breaker protects industrial power circuits in control panels and switchgear. This model, MPSC4N3WEAXXSW, delivers robust overload and short-circuit protection in a double standard frame with drawout vertical mounting. Facility teams often struggle with finding a compatible, maintenance-friendly breaker that meets global safety standards while minimizing spare parts. The unit carries UL Listed, CE Marked, and CSA Certified approvals, plus additional certifications such as ANSI and Lloyd’s Register, enabling international deployment and audit readiness. By aligning with industry standards and standard frame geometry, it reduces engineering time and installation costs, while offering reliable protection for critical processes and plant productivity.

Product Information

Extended Description

MPSC4N3WEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (AABBCC), 100 kA, Three-pole, Drawout vertical mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC4N3WEAXXSW
UPC
786689633523
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
NEMA Compliant SABA Listed CE Marked CCC Marked
Certifications
KEMA Certified ANSI Lloyd's Register Certified UL Listed CSA Certified ABS Certified DNV GL 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 Microsoft Word - Power Xpert Protection Manager Quick Start Guide.docx Microsoft Word - Power Xpert Protection Manager Quick Start Guide.docx Microsoft Word - Power Xpert Protection Manager Quick Start Guide.docx 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 - MPSC4N3WEAXXSW Eaton Specification Sheet - MPSC4N3WEAXXSW 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: Drawout vertical mounting in a Magnum double standard frame enables quick pull-out testing and safer maintenance. Business Impact: reduces downtime during preventive maintenance and facilitates standardization across multiple panels. Application: suitable for control cabinets and switchgear in manufacturing plants. Feature: High interrupt capacity up to 4000 A and short-circuit rating up to 100 kA. Business Impact: increases system resilience against faults, lowering risk of cascading outages. Application: protects feeders and motors in high-demand lines within process and packaging facilities. Feature: No trip unit on this variant; simple, robust design with established renewal parts. Business Impact: minimizes spare parts variety and simplifies procurement, accelerating project timelines. Application: ideal for standard protection schemes in legacy or cost-conscious deployments. Feature: Broad certifications and compliance footprint (UL Listed, CE Marked, CSA Certified, ANSI, NEMA, SABA Listed). Business Impact: supports regulatory audits and cross-border projects, improving customer acceptance. Application: valuable for global manufacturers and OEMs with diverse installation sites. Feature: Physical footprint and mounting compatibility (Drawout vertical mounting, 16.3 in depth, 16.8 in height, 31.1 in width; 237 lb). Business Impact: predictable enclosure integration and streamlined installation planning. Application: fits large power distribution panels and control cabinets in industrial facilities.

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FAQs

The MPSC4N3WEAXXSW uses a drawout vertical mounting within a Magnum double standard frame. Plan for a panel width of 31.1 in and height of 16.8 in, with a depth of 16.3 in. This configuration supports safe testing, straightforward replacement, and easy alignment with adjacent devices in control cabinets.
This model provides a 3-pole configuration with 4000 A interrupt capacity and up to 100 kA short-circuit current rating (SCCR). It is designed for robust protection in high-demand feeder and motor circuits while maintaining compatibility with Magnum PXR accessories and standard renewal parts.
Yes, for large control panels and power distribution cabinets where high fault current occurs, the MPSC4N3WEAXXSW offers reliable protection. Its drawout frame and solid construction support routine motor feeder protection, with the added benefit of broad certification coverage that simplifies cross-border deployments.
The breaker is UL Listed and CE Marked, with additional certifications including NEMA compliance, SABA Listing, CCC Mark, ANSI, Lloyd's Register, CSA, ABS, and DNV GL. This breadth supports global audits, cross-regional projects, and OEM compliance requirements.
Eaton provides Magnum renewal parts and accessories for the PXR family, allowing upgrades and replacements without replacing the entire assembly. This approach reduces spare parts inventory, shortens maintenance lead times, and protects the investment in existing power distribution infrastructure.