Eaton E2ME3800WU66 MCCB Mining Complete - UL CSA

Part Number: E2ME3800WU66
Manufacturer
Eaton
Part number
E2ME3800WU66

Quick Summary

The Eaton E2ME3800WU66 MCCB is a mining-grade molded case circuit breaker designed to protect high-current electrical systems in demanding mining environments. Engineers often face reliability and downtime concerns when protecting feeders, motors, and conveyors under harsh conditions, which makes robust interruption and precise tripping essential. This unit carries UL Listed and CSA Certified markings, with LSI trip capability for safe, controlled releases in fault scenarios. It also supports 800 A continuous operation with a 65 kAIC interrupt rating at 240 Vac, helping operators meet stringent safety and performance requirements. For project teams seeking scalable protection, this E2ME mining MCCB integrates with existing mining switchgear and delivers dependable lifecycle cost benefits.

Product Information

Extended Description

E2ME3800WU66 Eaton: Eaton E2 mining complete molded case circuit breaker, M-frame, E2ME, Complete breaker, LSI trip, 500-2500A trip rating, Three-pole, 800A, 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac, 22 kAIC at 250 Vdc, No term., Mining
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2ME3800WU66
UPC
786685242903
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
UL Listed CSA Certified
Type
Specialty complete
Amperage Rating
800 A
Voltage rating
600 Vac
Trip Type
T165
Circuit breaker type
E2ME
Circuit breaker frame type
Complete breaker
Magnetic trip range
500-2500A
Terminals
Without terminals
Undervoltage release
120 Vac mining rear with left pigtail
Frame
M
Class
Mining
Interrupt rating
65 kAIC at 240 Vac 35 kAIC at 480 Vac 25 kAIC at 600 Vac 22 kAIC at 250 Vdc
Number of poles
Three-pole
Feature → Business Impact → Application: The E2ME3800WU66 uses an M-frame, complete breaker design that simplifies replacement and maintenance in rugged mining panels, reducing commissioning time and downtime. This translates to lower installation costs and faster project ramp-up for mining operations, especially where space and compatibility with existing E2ME components matter. Feature → Business Impact → Application: An 800 A amperage rating supports heavy-load scenarios common in ore processing and primary distribution, delivering consistent protection for feeders and motor circuits while reducing nuisance trips and equipment wear in harsh environments. Feature → Business Impact → Application: The T165 trip type combined with LSI (Long Mechanical and Electrical) trip provides precise fault protection with minimal arc energy, improving safety margins and device longevity in underground mining and surface sites. Feature → Business Impact → Application: The undervoltage release (120 Vac mining rear with left pigtail) enables reliable remote tripping and lockout control, enhancing safety interlocks for conveyors and mine hoists. Feature → Business Impact → Application: With 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac, and 22 kAIC at 250 Vdc, the unit supports diverse power systems and rapid fault interruption, minimizing system-wide outages and facilitating compliance with demanding electrical codes in mining facilities. Feature → Business Impact → Application: The three-pole design and “without terminals” configuration streamline mounting in compact MCC panels, enabling faster replacement and consistent wiring practices across mining fleets, reducing field engineering time and error rates. These features collectively improve uptime, safety, and total cost of ownership for mining protection schemes while aligning with mining-class standards and project timelines.

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FAQs

The E2ME3800WU66 is designed as a complete M-frame three-pole breaker with a compact footprint and a ‘without terminals’ format for straightforward mounting. It matches standard MCCB mounting schemes used in mining switchgear and supports integration with Eaton E2 mining accessories, enabling fast retrofits and consistent wiring layouts across legacy panels.
Key specs include an 800 A amperage rating, 600 Vac voltage rating, and 65 kAIC interrupt rating at 240 Vac (with 35 kAIC at 480 Vac and 25 kAIC at 600 Vac, plus 22 kAIC at 250 Vdc). The Trip Type is T165, and it features LSI trip for reliable fault clearance. These characteristics support fast, safe interruption in high-current mining circuits.
Yes. The E2ME3800WU66 is classified for mining use, with high interrupt ratings and LSI protection. Its 120 Vac undervoltage release supports remote tripping and control in confined underground spaces. Combined with UL Listed and CSA Certified compliance, this breaker provides reliable protection for underground feeders, conveyors, and motor circuits under demanding conditions.
This product carries UL Listed and CSA Certified markings, indicating compliance with North American electrical safety standards. The mining-focused design, LSI trip, and rugged construction further support regulatory adherence for high-risk environments. Always verify specific project requirements and MSHA guidance where applicable to maintain comprehensive compliance.
The complete MCCB design simplifies replacement and reduces field labor during maintenance. The LSI trip, solid interrupt ratings, and rugged M-frame construction contribute to longer service life and fewer unexpected trips. With a defined warranty and compatibility with E2 mining accessories, operators gain predictable lifecycle costs and easier equipment inventory management.