Eaton E2MM3800WA06U66 - Mining complete MCCB, 2000-4000A trip
Part Number: E2MM3800WA06U66
Quick Summary
Eaton E2 mining complete molded case circuit breaker protects underground electrical systems with reliable fault interruption in harsh mining environments. Operators face dust, vibration, and uptime pressure, making consistent protection vital; this MCCB delivers rugged performance and predictable tripping to minimize unplanned downtime. In mining applications, certifications and compliance matter—verify with the manufacturer for SIL, CE and IP-related ratings to ensure site-specific approvals. Designed for heavy-duty panels, it supports an 800 A rating, 1000Y/577 Vac and 250 Vdc, delivering safer, compliant protection and streamlined maintenance across mining feeders and motors.
Product Information
Extended Description
E2MM3800WA06U66 Eaton: Eaton E2 mining complete molded case circuit breaker, M-frame, E2MM, Interchangeable thermal-magnetic trip, 2000-4000A trip rating, Three-pole, 800A, 1000Y/577 Vac, 250 Vdc, no term., 2A-2B rear w/right pigtail, 120 Vac rear w/left pigtail
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2MM3800WA06U66
UPC
786685571881
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
T207
Circuit breaker type
E2MM
Circuit breaker frame type
Complete breaker
Auxiliary switch
2A-2B rear with right pigtail
Magnetic trip range
2000-4000A
Terminals
Without terminals
Undervoltage release
120 Vac mining rear with left pigtail
Frame
M
Class
Mining
Interrupt rating
25 kAIC at 600 V 22 kAIC at 250 Vdc 35 kAIC at 480 V 18 kAIC at 1000Y/577
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
Eaton Specification Sheet - E2MM3800WA06U66
Eaton Specification Sheet - E2MM3800WA06U66
Eaton Specification Sheet - E2MM3800WA06U66
Eaton Specification Sheet - E2MM3800WA06U66
Understanding circuit breaker design and operation to improve safety and reliability in underground mining
Feature: Interchangeable thermal-magnetic trip (T207) across a 2000-4000 A magnetic range → Business Impact: Precise overcurrent protection that adapts to changing load profiles, reducing nuisance trips and extending equipment life. Application: Ideal for variable mining belt conveyors and feeder breakers where load swings are common. Feature: High amperage and multi-voltage capability (800 A; 1000Y/577 Vac; 250 Vdc) → Business Impact: Simplifies panel design and stock by supporting diverse application voltages in one device. Application: Suitable for multi-voltage mining sub-panels and centralized distribution. Feature: Three-pole M-frame, complete breaker → Business Impact: Robust, space-efficient mounting with standardized installation across mine switchgear. Application: Used in mining service centers and control rooms to consolidate protective functions. Feature: Auxiliary switch (2A-2B rear with right pigtail) and 120 Vac undervoltage release (rear with left pigtail) → Business Impact: Flexible control wiring and remote tripping options improve automation and safety interlocks. Application: Supports remote signaling and precision control in harsh environments. Feature: Warranty and rugged rating (Eaton policy; 25-000; 1 year from installation or 18 months from shipment) → Business Impact: Lower lifecycle risk and predictable budgeting for maintenance cycles. Application: Critical for procurement planning in long-term mining projects. Feature: High interrupt ratings (25 kAIC at 600 V; 22 kAIC at 250 Vdc; 35 kAIC at 480 V; 18 kAIC at 1000Y/577) → Business Impact: Superior fault current withstand enhances system reliability and safety margins in high-short-circuit mining drives. Application: Essential for underground motor starters and primary feeders in demanding mine environments.
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FAQs
Install the three-pole E2MM in compatible M-frame enclosures, noting that terminals are not included. Use the rear-mounted auxiliary switch (2A-2B with right pigtail) and the undervoltage release (120 Vac mining rear with left pigtail) to connect control circuits. Verify proper mounting, torque settings, and alignment with existing switchgear to ensure reliable protection and ease of maintenance.
The E2MM3800WA06U66 is designed as a mining-specific complete breaker with a rugged M-frame and 800 A rating. It supports 1000Y/577 Vac and 250 Vdc, with a 2000-4000 A magnetic trip range for broad fault protection. Its equipment-level wiring options and robust construction address dust, vibration, and uptime challenges common in underground mines.
Key ratings include an 800 A continuous Ampere rating, voltage of 1000Y/577 Vac and 250 Vdc, and a T207 trip type. Magnetic trip range spans 2000-4000 A, with interrupt ratings up to 25 kAIC at 600 V, ensuring strong short-circuit protection for high-energy mining circuits and critical loads.
Certifications and compliances are specified by the manufacturer and must be confirmed for your site. Typical mining MCCBs are evaluated against SIL, CE, and IP considerations; please request the latest certification documentation from Eaton to ensure regulatory alignment for your facility and project scope.
The E2MM3800WA06U66 combines high fault tolerance, reduced nuisance trips, and flexible wiring options, contributing to lower maintenance costs and less downtime. With a robust warranty and long service life in harsh mining environments, operators can expect reduced field failures and improved uptime, translating to lower total cost of ownership over the equipment lifecycle.