Eaton E2NM3800WU66 Mining MCCB - 25 kAIC at 1000 Vac
Part Number: E2NM3800WU66
Quick Summary
The Eaton E2NM3800WU66 is a mining complete MCCB that protects electrical equipment in demanding underground mining installations. Facility teams struggle with trip reliability, downtime, and complex maintenance in harsh mining environments. Certifications and compliance vary by region; consult Eaton for current CE marking, IP ratings, and SIL alignment as applicable to your site. This model pairs with Eaton's E2 mining protection schemes to deliver reliable, scalable protection, easy panel integration, and reduced total cost of ownership across a mining fleet. Designed for continuous operation in harsh conditions, the E2 NM series uses electronic LI trip, supports high interrupt ratings, and accommodates under-voltage release for enhanced safety controls. With mining-grade construction and Eaton's service support, you gain lifecycle protection and predictable maintenance.
Product Information
Extended Description
E2NM3800WU66 Eaton: Eaton E2 mining complete molded case circuit breaker, N-frame, E2NM, Electronic LI trip, 500-2500A trip rating, Three-pole, 800A, 1000Y/577 Vac, 250 Vdc, 25 kAIC at 1000 Vac, Without terminals, Mining, 120 Vac mining rear with left pigtail
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2NM3800WU66
UPC
786679059784
Product Length/Depth
5.5 in
Product Height
8.25 in
Product Width
8.25 in
Product Weight
45 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
T165
Circuit breaker type
E2NM
Circuit breaker frame type
Complete breaker
Magnetic trip range
500-2500A
Terminals
Without terminals
Undervoltage release
120 Vac mining rear with left pigtail
Frame
N
Class
Mining
Interrupt rating
25 kAIC at 1000 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
E2 1200 Vac - K, L, and M-Frame mining service breakers and accessories
E2 1200 Vac - K, L, and M-Frame mining service breakers and accessories
E2 1200 Vac - K, L, and M-Frame mining service breakers and accessories
E2 1200 Vac - K, L, and M-Frame mining service breakers and accessories
Understanding circuit breaker design and operation to improve safety and reliability in underground mining
Feature → Business Impact → Application: Three-pole N-frame design with an 800 A rating and a 500-2500 A magnetic trip range delivers precise overload protection and fast fault clearing, reducing arc flash exposure and unplanned downtime in high-current mining feeders. Application: Main feeders and motor circuits in underground mining equipment. Feature → Business Impact → Application: Voltage ratings of 1000Y/577 Vac and 250 Vdc with 25 kAIC interrupt capacity at 1000 Vac support high fault currents, enabling reliable interruption without nuisance trips. Application: Power distribution panels and conveyors in ore processing lines. Feature → Business Impact → Application: Undervoltage release option with 120 Vac rear mining rear and left pigtail reduces remote signaling wiring complexity. Application: Mining control cabinets where remote trip is required. Feature → Business Impact → Application: Without terminals design plus a 5.5 in depth, 8.25 in height, 8.25 in width footprint and 45 lb weight offers a rugged, panel-friendly form factor. Application: OEM panel integration in compact mining enclosures. Feature → Business Impact → Application: One-year warranty (or 18 months from shipment) provides lifecycle support and predictable budgeting. Application: Fleet deployment and service planning across mining sites.
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FAQs
Install the E2NM3800WU66 in compatible mining control panels using an N-frame, three-pole 800 A MCCB configuration. Terminals are not included, so select compatible lugs and bus accessories per Eaton’s guidelines. If remote signaling is needed, utilize the 120 Vac undervoltage release with the rear-left pigtail option to enable safe, remote tripping while maintaining panel compactness.
Key specs include an 800 A amperage rating, a magnetic trip range of 500–2500 A, a voltage rating of 1000Y/577 Vac and 250 Vdc, and a 25 kAIC interrupt capacity at 1000 Vac. It is a three-pole, N-frame mining complete MCCB with electronic LI trip, designed for high-current mining applications and reliable fault clearing.
Yes. The E2NM3800WU66 is a three-pole N-frame mining MCCB with a high interrupt rating and a 1000 Vac network rating, suitable for main feeders and conveyor drives in underground mining. Its undervoltage release option supports remote interlock signaling, enhancing safety in remote control cabinets and harsh mining environments.
Compliances and certifications for this specific model are listed as ‘Contact Manufacturer.’ For mining and industrial use, verify CE markings, IP ratings, and SIL alignment with Eaton for your region and application. Always confirm the exact certifications with Eaton before deployment to ensure site-specific regulatory compliance.
The E2NM3800WU66 carries Eaton’s standard policy: one year from installation or eighteen months from shipment, whichever occurs first. This warranty, combined with Eaton’s mining MCCB ecosystem, supports predictable maintenance, reduced downtime, and a clear ROI when deployed across multiple mining assets with consistent protection schemes.