Eaton E2MM3800MPWU66 Mining MCCB - 1000Y/577 Vac
Part Number: E2MM3800MPWU66
Quick Summary
The Eaton E2MM3800MPWU66 mining MCCB provides reliable fault interruption for heavy mining power distribution systems. Engineers often struggle to find a breaker that withstands harsh underground environments, frequent start-ups, and dust ingress. In mining applications, critical certifications such as CE marking for safety, IP-rated enclosures for dust and water ingress, and SIL-related safety considerations are essential—verify with Eaton for exact compliance on this model. This solution combines rugged M-frame design with an 800 A rating and 1000Y/577 Vac/250 Vdc capabilities, delivering safety, uptime, and regulatory alignment while supporting easier maintenance and integration with Digitrip 310+ trip units for improved control.
Product Information
Extended Description
E2MM3800MPWU66 Eaton: Eaton E2 mining complete molded case circuit breaker, M-frame, E2MM, Interchangeable magnetic only trip, 2500-5000A trip rating, Three-pole, 800A, 1000Y/577 Vac, 250 Vdc, no term., Mining, 120 Vac mining rear w/ left pigtail
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2MM3800MPWU66
UPC
786685242965
Product Length/Depth
4.06 in
Product Height
16 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.
Compliances
Contact Manufacturer
Certifications
Contact Manufacturer
Type
Specialty complete
Amperage Rating
800 A
Voltage rating
1000Y/577 Vac, 250 Vdc
Trip Type
T205
Circuit breaker type
E2MM
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
35 kAIC at 480 V 25 kAIC at 600 V 18 kAIC at 1000Y/577 22 kAIC at 250 Vdc
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
Selling Policy 25-000 - Distribution and Control Products and Services
Understanding circuit breaker design and operation to improve safety and reliability in underground mining
Feature: M-frame, three-pole mining complete molded case circuit breaker. Business impact: Rugged design withstands harsh underground conditions while delivering consistent protection for mining feeders and motors. Application: Ideal for heavy mining power distribution with reliable interrupt capability and straightforward panel integration. Feature: 800 A amperage rating. Business impact: Supports high-load mining applications with reduced risk of nuisance tripping and lower total cost of ownership. Application: Large mining installations requiring robust fault protection. Feature: Magnetic trip range 2500-5000 A. Business impact: Adjustable protection aligned to system fault currents, enabling precise coordination with upstream protections. Application: Main protection in high-current mining networks. Feature: Voltage ratings 1000Y/577 Vac and 250 Vdc; 120 Vac mining rear with left pigtail undervoltage release. Business impact: Broad AC/DC coverage and remote tripping capability improve safety and control. Application: Underground substations, drive systems, and conveyor motor controls. Feature: Weight and dimensions 29 lb, 4.06 in depth, 8.25 in width, 16 in height; without terminals. Business impact: Easier handling, faster installation, and compatibility with standard mounting arrangements. Application: Retrofit projects and new mining panels with limited space. Feature: Interchangeable magnetic trip and compatibility with Digitrip 310+. Business impact: Flexible trip options and modern electronic trip unit integration reduce downtime and improve protection logic. Application: Modernized mining MCCB configurations with enhanced protection coordination.
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FAQs
This unit ships without terminals, so you’ll need an appropriate terminal kit or busbar assembly compatible with three-pole E2MM breakers. Start by verifying panel rating and clearance, then mount using standard MCCB mounting patterns. Connect to your bus and wiring per the panel manufacturer's guidelines, ensuring the undervoltage release wiring (120 Vac rear with left pigtail) is correctly routed for remote tripping and safety interlocks.
Key specs include an 800 A amperage rating, voltage rating of 1000Y/577 Vac and 250 Vdc, and three-pole M-frame construction with trip type T205. The magnetic trip range is adjustable from 2500 to 5000 A, allowing you to coordinate protection with upstream devices. The device is compatible with Digitrip 310+ electronic trip units for enhanced protection logic.
Yes, the E2MM3800MPWU66 is designed for mining applications, featuring a mining-class M-frame and a three-pole configuration for robust protection of feeders and motors. It also includes a 120 Vac rear undervoltage release for reliable remote tripping. While exact IP and SIL certifications depend on the final assembly, consult Eaton for the precise compliance package for your installation.
Certifications and compliances are listed as manufacturer-specific in the data set; please verify with Eaton for BLANKET CE, IP ratings, SIL considerations, and any MSHA-related notes applicable to your project. When specifying for mining operations, confirm the exact certification scope and traceability to your regional regulatory requirements before procurement.
The unit carries Eaton’s warranty policy: one year from the date of installation or eighteen months from shipment, whichever occurs first. ROI in large installations comes from improved uptime, reduced fault damage, and safer, more predictable protection coordination, especially when paired with Digitrip 310+ for advanced electronic protection and streamlined maintenance.