Eaton MPS8403HEAXXSW Magnum low voltage breaker - UL

MPS8403HEAXXSW
Manufacturer
Eaton
Part number
MPS8403HEAXXSW
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects electrical systems by reliably interrupting faults in industrial automation panels. If nuisance trips or limited frame choices slow startups and increase maintenance costs, a robust, configurable solution is essential. Rated for 4000 A (ABCABC) and 85 kA, this unit carries CE and UL listings, ANSI and KEMA certifications, plus CSA, DNV GL, and Lloyd’s Register validations for global compliance. Designed for three-pole, fixed horizontal mounting and seamless compatibility with Magnum PXR trip units, it enables efficient protection in high-density switchgear and reduces total cost of ownership.

Product Information

Extended Description

MPS8403HEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (ABCABC), 85 kA, Three-pole, Fixed horizontal mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS8403HEAXXSW
UPC
786689628345
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
CCC Marked CE Marked NEMA Compliant SABA Listed
Certifications
ANSI KEMA Certified Lloyd's Register Certified UL Listed 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 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 - MPS8403HEAXXSW Eaton Specification Sheet - MPS8403HEAXXSW 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
No trip unit shipped; designed to be paired with Magnum PXR Release trip units for enhanced protection. This flexibility lets you tailor protection to specific applications without reengineering panels. Suitable for industrial switchgear where protection modules are sourced separately. Feature: 4000 A current rating with 85 kA withstand. Business impact: Supports high fault currents, reducing upstream device stress and downtime. Application: Large distribution feeders, manufacturing lines, data centers. Feature: Three-pole, fixed horizontal mounting. Business impact: Easier installation, predictable footprint, and compatibility with existing bus structures. Application: Retrofit or new build in control panels. Feature: Global certifications including CE, UL Listed, ANSI, KEMA, CSA, DNV GL, ABS; NEMA Compliant; CCC Marked. Business impact: Simplifies international deployment and supplier qualification. Application: Multiregional facilities with stringent regulatory requirements. Feature: Robust dimensions and weight (16.3 in depth, 31.1 in width, 16.8 in height; 237 lb). Business impact: Stable mechanical structure for rugged environments; supports shock and vibration requirements. Application: Heavy-duty switchgear enclosures and rack-mounted systems.

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FAQs

This breaker ships without a trip unit and is designed to be paired with Magnum PXR Release trip units for enhanced protection. Install using three-pole fixed horizontal mounting in suitable switchgear, ensuring busbar compatibility and proper wiring to the panel protection scheme.
The unit provides a 4000 A current rating (ABCABC) and an 85 kA short-circuit rating. It is a three-pole breaker with fixed horizontal mounting, designed for high-demand distribution panels.
Certifications include UL Listing, CE Marking, ANSI, KEMA, CSA, DNV GL, and ABS, along with NEMA compliance and CCC Mark. These approvals support global compliance, safe installation, and reliability across multinational facilities.
The breaker is 16.3 in deep, 31.1 in wide, and 16.8 in high, weighing 237 lb. It uses fixed horizontal mounting and three-pole construction, aiding predictable installation in large switchgear or rack-mounted assemblies.
By combining high fault-current capability with global certifications and compatibility with Magnum PXR and Power Xpert tools, it reduces downtime, enhances protection coordination, and lowers total cost of ownership through flexible protection configuration and streamlined regulatory compliance.