Eaton E2N3800MWU66 Mining MCCB - UL Listed

Part Number: E2N3800MWU66
E2N3800MWU66
Manufacturer
Eaton
Part number
E2N3800MWU66
Category

Quick Summary

The Eaton E2N3800MWU66 mining MCCB protects high-current power systems in underground and surface mining applications. In harsh mining environments, reliability and safety gaps can drive costly downtime, so a breaker that minimizes unplanned trips and simplifies maintenance is essential. This device carries CSA Certified and UL Listed markings, with interrupt ratings of 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, and 25 kAIC at 600 Vac, supporting robust protection across load conditions. With an 800 A amperage rating and 600 Vac operation, the E2N3800MWU66 helps meet stringent mining safety standards while enabling efficient coordination across feeders and motors. Its 120 Vac undervoltage release, rear mounting with left pigtail, and no-terminal design further streamline installation and serviceability.

Product Information

Extended Description

E2N3800MWU66 Eaton: Eaton E2 mining complete molded case circuit breaker, N-frame, E2N, Electronic LI trip, 500-2500A, Three-pole, 800A, 600 Vac, 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 kAIC at 600 Vac, No term., Mining, 120 Vac mining rear w/ left pigtail
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2N3800MWU66
UPC
786679060216
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.
Certifications
CSA Certified UL Listed
Type
Specialty complete
Amperage Rating
800 A
Voltage rating
600 Vac
Trip Type
T165
Circuit breaker type
E2N
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
50 kAIC at 480 Vac 65 kAIC at 240 Vac 25 kAIC at 600 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: N-frame, three-pole design with 800 A rating and 600 Vac operation. Business Impact: Delivers high-current protection for large mining feeders and equipment with reliable coordination across circuits. Application: Underground and surface mining installations requiring strong short-circuit protection and predictable tripping. Long-tail keyword: mining MCCB, three-pole breaker. Feature: Electronic LI trip for precise protection. Business Impact: Improves selective tripping and reduces nuisance trips, lowering downtime. Application: Feeder circuits where selective coordination is critical in harsh environments. Long-tail keyword: electronic trip molded case breaker. Feature: High interrupt ratings across voltages — 65 kAIC at 240 Vac and 50 kAIC at 480 Vac (25 kAIC at 600 Vac). Business Impact: Maintains system integrity during fault conditions, supporting safety compliance and reduced equipment damage. Application: Mining power distribution facing variable supply voltages. Long-tail keyword: maximum interrupt rating. Feature: Undervoltage release 120 Vac mining rear with left pigtail. Business Impact: Enables remote control and safer lockout/tagout leading to faster maintenance cycles. Application: Integrated mining control schemes with rear-mounted undervoltage release. Long-tail keyword: undervoltage release mining. Feature: Terminals without terminals design. Business Impact: Simplifies retrofits and reduces wiring complexity in retrofit projects. Application: Cabinet modernization and new installations. Long-tail keyword: easy installation MCCB. Feature: Warranty and certifications. Business Impact: Provides procurement confidence and regulatory alignment with CSA Certified and UL Listed. Application: Compliance-based sourcing for mining operations. Long-tail keyword: mining safety certifications.

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FAQs

The E2N3800MWU66 is a three-pole 800 A, 600 Vac complete molded case circuit breaker designed for mining feeders and power distribution. It provides consistent protection for underground and surface mining equipment with the E2 mining series architecture, offering reliable LI electronic trip and robust interrupt ratings. Use it to protect high-load mining circuits while enabling simpler maintenance and improved safety coordination.
Yes. The E2N3800MWU66 is part of the E2 mining series and utilizes the N-frame, three-pole configuration common to mining MCCBs in enclosure-based installations. It supports standard maintenance practices, features a rear 120 Vac undervoltage release with left pigtail, and is designed to retrofit within OEM panels and field-installed mining cabinets that require CSA Certified and UL Listed protection.
Key specifications include an amperage rating of 800 A, voltage rating of 600 Vac, frame type N, three poles, and a trip type T165. It provides interrupt ratings of 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, and 25 kAIC at 600 Vac. It is supplied without terminals and includes a 120 Vac undervoltage release with rear mounting and left pigtail.
The E2N3800MWU66 carries CSA Certified and UL Listed certifications, confirming compliance with North American electrical protection standards. These certifications support safe operation in mining environments and help meet procurement and regulatory requirements for mining projects and equipment installations.
Warranty terms indicate one year from installation or eighteen months from shipment, whichever occurs first. This reflects Eaton’s policy for the E2 mining series, providing coverage for manufacturing defects and ensuring support during early lifecycle use in demanding mining installations.