Eaton E2M3800MPWU66 Molded Case Circuit Breaker - UL CSA

Part Number: E2M3800MPWU66
E2M3800MPWU66
Manufacturer
Eaton
Part number
E2M3800MPWU66
Category

Quick Summary

Eaton E2M3800MPWU66 is a mining complete molded case circuit breaker protecting mining electrical systems in harsh underground operations. Operators struggle with reliability, safety, and trip coordination in volatile mining environments. This unit is CSA Certified and UL Listed, ensuring compliance with mining safety standards and robust performance. Designed for electrical protection in mining applications, it supports reliable installation, predictable maintenance, and total cost of ownership reduction while delivering scalable magnetic trip ranges and interchangeability benefits. With 800 A at 250 Vdc and 65 kAIC at 240 Vac, it provides strong protection across diverse mine circuits, helping maintain continuity of critical operations and worker safety.

Product Information

Extended Description

E2M3800MPWU66 Eaton: Eaton E2 mining complete molded case circuit breaker, M-frame, E2M, Interchangeable magnetic only trip, 2500-5000A, Three-pole, 800A, 250 Vdc, 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac, 22 kAIC at 250 Vdc, No term.
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2M3800MPWU66
UPC
786685242866
Product Length/Depth
4.06 in
Product Height
8.25 in
Product Width
8.25 in
Product Weight
29 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
CSA Certified UL Listed
Type
Specialty complete
Amperage Rating
800 A
Voltage rating
250 Vdc
Trip Type
T205
Circuit breaker type
E2M
Circuit breaker frame type
Complete breaker
Magnetic trip range
2500-5000A
Terminals
Without terminals
Undervoltage release
120 Vac mining rear with left pigtail
Frame
M
Class
Mining
Interrupt rating
25 kAIC at 600 Vac 35 kAIC at 480 Vac 22 kAIC at 250 Vdc 65 kAIC at 240 Vac
Number of poles
Three-pole
Eaton E2 Series mining service circuit breakers Eaton E2 Series mining service circuit breakers Eaton E2 Series mining service circuit breakers Eaton E2 Series mining service circuit breakers Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2 MSHA policy letter for suitability, safety and performance of circuit breakers Robinson Mine Case Study: Solutions for the mining industry Digitrip 310+ vs. 310 electronic trip unit technical comparison Digitrip 310+ vs. 310 electronic trip unit technical comparison Digitrip 310+ vs. 310 electronic trip unit technical comparison Digitrip 310+ vs. 310 electronic trip unit technical comparison Understanding circuit breaker design and operation to improve safety and reliability in underground mining
Feature: Interchangeable magnetic trip enables adjustable overcurrent protection. Business impact: reduces spare parts and enables rapid field updates, minimizing downtime during protection reconfiguration. Application: used in mining service panels and MCCs where fault-current requirements vary by equipment and ore conditions, allowing flexible protection tuning. Feature: Magnetic trip range of 2500-5000 A and M-frame three-pole design deliver high interrupt ratings. Business impact: robust fault-current protection reduces arc flash risk and protects critical mine equipment. Application: suitable for underground conveyors, crushers, and heavy mining motors requiring dependable trip coordination. Feature: Undervoltage release of 120 Vac mining rear with left pigtail enables remote protection schemes. Business impact: enhances safety interlocks and ensures trips during undervoltage events. Application: mine control panels, ventilation systems, and conveyor drives needing coordinated shutdowns. Feature: Terminals are not included, enabling flexible integration with customer bus bars and field wiring kits. Business impact: installation flexibility and compatibility with existing panels reduces retrofit cost. Application: retrofits and new builds in mining MCCs and service centers where wiring accessories vary. Feature: CSA Certified and UL Listed with a one-year warranty (or 18 months from shipment) offers regulatory compliance and predictable lifecycle costs. Business impact: simplifies procurement, reduces risk of noncompliance, and supports long-term maintenance planning. Application: procurement for underground mining projects and surface mine installations requiring verified safety certifications. Feature: Compact yet rugged footprint with 8.25 in height/width, 4.06 in depth, and 29 lb weight. Business impact: easy installation in crowded panels while maintaining durability for challenging mine environments. Application: new builds and retrofit projects where space is limited but protection must be reliable.

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FAQs

For retrofit or new-build panels, ensure mounting compatibility with the E2M frame (M-frame, three-pole). Note that terminals are not included, so plan for appropriate field wiring kits or bus bar interfaces. Verify undervoltage release routing and spare part compatibility with current protection schemes to maintain coordination with upstream devices.
This device excels in mining service panels, MCCs, conveyors, crushers, and heavy mining motors where reliable high-current protection and rapid trip coordination are critical. Its 800 A rating, 250 Vdc capability, and high interrupt ratings support both underground and surface mining environments with demanding fault currents.
Key specs include 800 A amperage rating, 250 Vdc voltage rating, trip type T205, and magnetic trip range 2500-5000 A. Interrupt ratings reach 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 22 kAIC at 250 Vdc, and 25 kAIC at 600 Vac, enabling robust protection across multiple mine circuits.
The E2M3800MPWU66 is CSA Certified and UL Listed, ensuring compliance with widely recognized mining safety and electrical protection standards. These certifications facilitate regulatory approvals, reduce risk during audits, and support procurement for regulated mine projects.
Warranty terms provide one year from installation or eighteen months from shipment, whichever occurs first. This, combined with Eaton’s mining-focused literature and service resources, supports maintenance planning, reduces lifecycle risk, and helps justify total cost of ownership in mine capital projects.