Eaton MPSC403HEAXX2S Magnum LVCB - UL Listed

Part Number: MPSC403HEAXX2S
MPSC403HEAXX2S
Manufacturer
Eaton
Part number
MPSC403HEAXX2S
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects industrial electrical feeders and machines across critical processes. Engineers often struggle with nuisance trips and poor coordination that drive downtime and maintenance costs. It carries UL Listed, CE Marked, and Lloyd’s Register certification, with additional ANSI, KEMA, CSA, DNV GL, and ABS approvals to support global deployments. Leveraging the Power Xpert Release trip unit offers selective coordination and fast, accurate protection management, while flexible mounting and a robust frame simplify installation and future upgrades. With a 4000 A frame and 100 kA interrupting capacity, it handles heavy fault currents in demanding environments. This combination helps you meet safety and reliability targets while reducing spare parts and downtime.

Product Information

Extended Description

MPSC403HEAXX2S Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 4000 A (ABCABC), 100 kA, Three-pole, Fixed horizontal mounting, PXR25 LSIGAM trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC403HEAXX2S
UPC
786689634414
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
31.1 in
Product Weight
237 lb
Compliances
NEMA Compliant CCC Marked CE Marked SABA Listed
Certifications
ANSI Lloyd's Register Certified KEMA 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 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 x32 22.06 1 Power Xpert Protection Manager x32 22.06 1 Eaton Specification Sheet - MPSC403HEAXX2S Eaton Specification Sheet - MPSC403HEAXX2S 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
Power Xpert Release (PXR) trip unit enables highly selective protection and fast fault clearing, reducing arc energy and improving system reliability. The business impact is lower downtime and easier maintenance, especially in multi-panel configurations common to manufacturing and processing facilities. This unit integrates with Power Xpert Protection Manager for remote monitoring and coordinated protection strategies, while preserving familiar Magnum form factors for quick retrofits. In practical terms, installers gain faster commissioning with intuitive setup, and operators see fewer nuisance trips due to adjustable tripping curves that match motor and load profiles across lines. The three-pole, fixed-horizontal mounting aligns with standard Magnum frames, simplifying installation in existing switchgear housings and enabling scalable expansion in automation lines. The 100 kA interrupting capacity supports large fault events without compromising continuity, delivering measurable safety and reliability improvements. Engineers also benefit from comprehensive Eaton documentation and certifications supporting global code compliance. The combination of robust hardware, proven protection logic, and accessible maintenance data translates into lower total cost of ownership and faster project ROI in industrial environments.

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FAQs

The MPSC403HEAXX2S is a three-pole, fixed-horizontal mounted Magnum frame circuit breaker designed for standard low-voltage switchgear configurations. It supports the Power Xpert Release trip unit family and aligns with common Eaton panelboard footprints. For retrofit projects, verify fit by referencing the 16.3 in depth, 31.1 in width, and 16.8 in height footprint and ensure panel clearance and mounting provisions meet the installation requirements.
Key specs include a three-pole design with a 4000 A frame and 100 kA interrupting capacity, fixed horizontal mounting, and the PXR25 LSIGAM trip unit. Product dimensions are 16.3 in length, 16.8 in height, and 31.1 in width, with a weight of 237 lb. The unit is designed for Magnum double standard frame configurations and compatible with standard panelboards and switchgear in industrial environments.
Yes, the MPSC403HEAXX2S is UL Listed and CE Marked. It also carries additional certifications and approvals including ANSI, Lloyd’s Register Certified, KEMA Certified, CSA Certified, DNV GL Certified, and ABS Certified, enabling compliant deployment across North American and international sites and supporting wide-ranging industrial applications.
The Power Xpert Release trip unit enables precise protection and selective coordination, reducing nuisance trips and improving downstream protection alignment. It integrates with Eaton’s protection software ecosystems (such as Protection Manager) for monitoring and coordination across panels, which can shorten fault clearance times, simplify maintenance, and improve overall safety in motor and feeder applications.
This breaker is well suited for industrial feeders, large motor circuits, and critical processes in manufacturing, processing plants, data centers, and process industries. Its 100 kA interrupting capacity and 4000 A frame support heavy fault currents, while the PXR trip unit provides flexible protection settings to meet exact coordination and safety requirements in demanding automation environments.