Eaton E2NM3800MWU66 Mining MCCB - 25 kAIC 1000 Vac
Part Number: E2NM3800MWU66
Quick Summary
The Eaton E2NM3800MWU66 mining MCCB provides high-current protection for mining power distribution and electrical infrastructure. In harsh mining environments, space constraints, fault currents, and downtime create costly maintenance and safety risks. Certification details are available from the manufacturer and typically cover CE marking, SIL considerations, and IP-related protection for rugged operation. Designed for N-frame, three-pole configurations with an interchangeable magnetic trip, it enables safe retrofits in mining panels and scalable protection for mining automation. With 1000Y/577 Vac and 250 Vdc ratings, users gain safer operation and improved uptime across demanding environments. This combination supports consistent performance in energized underground equipment and surface mining facilities.
Product Information
Extended Description
E2NM3800MWU66 Eaton: Eaton E2 mining complete molded case circuit breaker, N-frame, E2NM, Interchangeable magnetic only trip, 500-2500A, Three-pole, 800A, 1000Y/577 Vac, 250 Vdc, 25 kAIC at 1000 Vac, No terminals, Mining, 120 Vac mining rear with left pigtail
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2NM3800MWU66
UPC
786679059913
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
T205
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 1: 800 A amperage rating across a three-pole N-frame design enables handling of large mining motor loads while maintaining safe disconnect capability. Business Impact: reduces nuisance trips and supports consistent drive protection in belt lines and crushers. Application: ideal for mining conveyors and milling drives where high inrush currents occur. Feature 2: 25 kAIC interrupt rating at 1000 Vac provides robust fault energy handling, minimizing downstream equipment damage and downtime. Application: suitable for primary feeders in mining substations and main distribution panels. Feature 3: Interchangeable magnetic trip (T205) allows field-adjustable protection without full replacement, lowering spare parts inventory and downtime. Application: scalable protection for evolving mine loads and modular panel upgrades. Feature 4: Undervoltage release at 120 Vac mining rear with left pigtail simplifies remote tripping and signaling integration with existing control circuits. Business Impact: enhances automation reliability and safety interlocks. Application: shaft equipment and remote belt drives requiring dependable de-energization. Feature 5: Without terminals design and compact footprint (5.5 in depth, 8.25 in height and width) streamline installation in space-constrained mining panels and enable easier retrofits. Business Impact: reduces installation time and potential terminal corrosion; Application: modernization projects in underground galleries and surface plants. Feature 6: 1-year warranty (or 18 months from shipment, whichever occurs first) provides predictable maintenance budgeting and service planning. Application: procurement planning for long-term mining operations.
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FAQs
When installing the E2NM3800MWU66, ensure the panel accommodates an N-frame, three-pole device and account for the 5.5 inch depth and 8.25 inch height/width. Note that terminals are not included, so plan harnessing and terminations accordingly. The rear 120 Vac undervoltage release with left pigtail simplifies control wiring and remote signaling integration.
Key specs include an 800 A amperage rating, 500-2500 A magnetic trip range, 25 kAIC interrupt rating at 1000 Vac, and voltage rating of 1000Y/577 Vac with a 250 Vdc option. The device is a three-pole, N-frame breaker with T205 magnetic trip, designed for rugged mining service and high fault current environments.
Yes. The breaker is specifically designed for mining, with a mining class and N-frame configuration. It supports high fault current protection and reliable service in underground and surface mining settings, aided by its 120 Vac undervoltage release option and rugged construction for harsh environments.
Certification details are provided by Eaton and typically include CE marking, SIL considerations, and IP-related protections. For exact certification statuses, refer to Eaton’s documentation or contact the manufacturer to confirm current compliance for your project and regional requirements.
The E2NM3800MWU66 delivers high fault-current robustness (25 kAIC) and long-term reliability, reducing downtime and maintenance costs in mining operations. Coupled with a 1-year warranty (18 months from shipment), this translates to lower total cost of ownership and improved uptime for critical mining infrastructure.