Eaton MPS85N4WEAXXSW Magnum low voltage power circuit breaker - 85 kAIC

Part Number: MPS85N4WEAXXSW
MPS85N4WEAXXSW
Manufacturer
Eaton
Part number
MPS85N4WEAXXSW
Category

Quick Summary

Eaton Magnum low voltage power circuit breaker provides reliable protection for industrial control panels and distribution systems. For engineers wrestling with space constraints and evolving protection schemes, finding a four-pole, drawout solution that fits standard frames can be frustrating. This device carries UL Listed and ANSI/CSA certifications, CE marking, plus additional global approvals such as Lloyd’s Register and DNV GL, supporting worldwide deployments. Leveraging the Magnum PXR family and its compatibility with Power Xpert Release trip units, you gain scalable protection, faster commissioning, and reduced maintenance costs.

Product Information

Extended Description

MPS85N4WEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Double standard frame, 5000 A (NNAABBCC), 85 kA, Four-pole, Drawout vertical mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPS85N4WEAXXSW
UPC
786689640446
Product Length/Depth
16.3 in
Product Height
16.8 in
Product Width
44.1 in
Product Weight
319 lb
Compliances
CE Marked SABA Listed CCC Marked NEMA Compliant
Certifications
ANSI CSA Certified UL Listed Lloyd's Register Certified KEMA Certified ABS Certified DNV GL Certified
Frame
Double standard
Number of poles
Four-pole
Type
Magnum PXR
Frame
Double standard
Series
Magnum
Number of poles
Four-pole
Rated uninterrupted current (Iu)
5000 A
Interrupt rating
85 kAIC
Interrupt rating
85 kAIC
Rated uninterrupted current (Iu)
5000 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 x64 22.6 1 Power Xpert Protection Manager x64 22.6 1 Eaton Specification Sheet - MPS85N4WEAXXSW Eaton Specification Sheet - MPS85N4WEAXXSW Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories Magnum PXR 20/25 electronic trip units time current curves Safer by design: arc energy reduction techniques Safer by design: arc energy reduction techniques Safer by design: arc energy reduction techniques
Feature: High interrupt rating of 85 kAIC. Business Impact: Protects downstream equipment from high-energy faults, reducing the risk of collateral damage and downtime. Application: Suitable for distribution panels and switchgear with elevated fault currents. Feature: 5000 A Iu ambient rating. Business Impact: Supports large, continuous loads with durable protection, improving system uptime. Application: Industrial processing lines and heavy motor loads where sustained current is expected. Feature: Four-pole, drawout vertical mounting. Business Impact: Simplifies installation, improves accessibility for testing, and enables modular panel expansion. Application: Control centers and MCCs requiring straightforward maintenance access. Feature: Magnum PXR frame with double standard design. Business Impact: Facilitates standardization across legacy and new equipment, reducing inventory and training costs. Application: Global facilities using Magnum family breakers. Feature: No trip unit, upgrade path available. Business Impact: Lower initial cost with future protection upgrades via Power Xpert Release trip units. Application: Projects with phased protection programming. Feature: Rich certification portfolio. Business Impact: Ensures compliance across regions (UL, ANSI CSA, CE, etc.), enabling quicker approvals. Application: Global deployment in multi-country facilities. Feature: Compatibility with extensive Eaton documentation and tools. Business Impact: Accelerates commissioning with manuals, application papers, and protection manager software. Application: Engineering teams seeking proven, well-supported protection hardware.

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FAQs

To install, ensure the panel has compatible drawout rails and sufficient clearance. Align the four-pole unit with the vertical mounting channels, secure with the provided hardware, connect the terminations per the wiring diagram, and verify the drawout mechanism operates smoothly before energizing. Always follow lockout/tagout procedures and refer to the Magnum PXR user manual during setup.
The breaker supports rated uninterrupted current (Iu) of 5000 A and an interrupt rating of 85 kAIC. It is a four-pole Magnum PXR device with a double standard frame designed for drawout mounting, enabling reliable protection for high-current distribution panels.
Yes. The four-pole, drawout design and high interrupt rating make it suitable for motor control centers and distribution panels. It aligns with Magnum PXR family recommendations and can integrate with Power Xpert Release trip units if future protection upgrades are planned, offering a scalable protection strategy for evolving plant needs.
The MPS85N4WEAXXSW carries UL Listed, ANSI CSA Certified, and CE Marked certifications, along with Lloyd’s Register, KEMA, ABS, and DNV GL certifications. It also aligns with SABA Listed and CCC Marked/compliant standards, aiding cross-border approvals and multi-region deployment.
The unit’s drawout design reduces maintenance time by enabling quick replacement and testing. Its high Iu and 85 kAIC rating minimize nuisance trips under fault conditions, improving uptime. Upgrading to Power Xpert Release trip units later provides enhanced protection features with minimal disruption and a clear ROI through reduced downtime and faster fault diagnosis.