Eaton MPSC203MEAXX2A Magnum PXR - 100 kAIC, 3-pole

Part Number: MPSC203MEAXX2A
MPSC203MEAXX2A
Manufacturer
Eaton
Part number
MPSC203MEAXX2A
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker protects electrical systems across industrial power distribution. In practice, nuisance trips and downtime erode plant productivity, driving maintenance costs and unscheduled outages. UL Listed, CSA Certified, and CE Marked certifications underpin global compliance and safe operation across multinational sites. With the PXR20 LSI trip unit and a standard three-pole drawout design, it integrates with Power Xpert solutions to enable selective protection, faster maintenance, and scalable architectures. This combination supports seamless retrofit in legacy switchgear and aligns with industry best practices for electrical protection. In practice, engineers value reliability, protection precision, and total cost of ownership when specifying this Magnum breaker.

Product Information

Extended Description

MPSC203MEAXX2A Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 2000 A, 100 kA, Three-pole, Drawout vertical with motorized racking mounting, PXR20 LSI trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC203MEAXX2A
UPC
786689639334
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
NEMA Compliant SABA Listed CCC Marked CE Marked
Certifications
CSA Certified KEMA Certified ANSI Lloyd's Register Certified UL Listed DNV GL Certified ABS Certified
Frame
Standard
Number of poles
Three-pole
Type
Magnum PXR
Frame
Standard
Series
Magnum
Trip Type
PXR20 LSI
Number of poles
Three-pole
Rated uninterrupted current (Iu)
2000 A
Interrupt rating
100 kAIC
Interrupt rating
100 kAIC
Rated uninterrupted current (Iu)
2000 A
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 - MPSC203MEAXX2A Eaton Specification Sheet - MPSC203MEAXX2A 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
Three-pole Magnum PXR standard-frame block features a drawout vertical mounting with motorized racking. The design supports fast lineup and safe maintenance, while accommodating high fault current with 100 kAIC interrupt rating. The PXR20 LSI electronic trip unit enables precise selective protection, reducing arc energy and improving system reliability for critical feeders in manufacturing and processing facilities. Rated uninterrupted current (Iu) of 2000 A combines with the 100 kAIC rating to protect large feeders and motors, supporting demanding industrial loads. The unit integrates with Power Xpert Protection Manager for remote monitoring and optimization, enabling scalable protection architectures across plants and data centers. The drawout mechanism and standardized frame simplify replacement, spare-part consistency, and long-term maintenance planning.

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FAQs

To install, confirm a standard-frame, three-pole, drawout unit with motorized racking. Ensure clean mounting rails, proper alignment of the drawout assembly, and correct wiring per Eaton manuals. Use the PXR20 LSI trip unit settings, verify mechanical interlocks, and test characteristic curves after installation. This minimizes post-installation nuisance trips and ensures reliable protection coordination.
Iu of 2000 A indicates the continuous operating current the breaker can carry under normal conditions, while 100 kAIC is the interrupt rating—the maximum fault current the breaker can safely interrupt. Together they support high-load feeders and motors typical in large manufacturing cells, ensuring reliable interruption during short-circuit events without equipment damage.
Yes, for data centers and heavy manufacturing feeders, the Magnum PXR with 3-pole grounding and selective coordination capabilities provides precise protection, minimizes outages, and supports scalable architectures. Its compatibility with Power Xpert Protection Manager enables monitoring and coordination across critical loads, contributing to uptime and energy-management strategies.
The unit carries UL Listed, CSA Certified, and CE Marked certifications, with additional approvals documented in certification sheets. These align with global electrical-safety standards, easing procurement for multinational facilities and simplifying regulatory compliance in diverse markets.
The motorized racking and drawout design streamline maintenance by simplifying replacement and testing procedures, reducing downtime during servicing. The PXR20 LSI trip unit improves protection accuracy, lowers nuisance trips, and enables selective coordination, delivering lower maintenance costs, reduced downtime, and improved asset longevity over the system lifetime.