Eaton E2N310WU66 Molded Case Circuit Breaker - UL Listed, CSA Certified
Part Number: E2N310WU66
Quick Summary
The Eaton E2N310WU66 molded case circuit breaker protects mining electrical systems by delivering reliable overcurrent protection in compact N-frame packages. End users in mining confront nuisance trips, difficult maintenance, and the need for dependable coordination under harsh, dusty environments. UL Listed and CSA Certified, this device is designed for mining service performance, with an electronic LSI trip to improve selectivity and safety. In practice, this translates to reduced downtime and easier procurement for compliant, repeatable protection across mine sites. This solution supports scalable protection with a 1000 A rating and 600 Vac capability, aligning with long-term maintenance and uptime goals.
Product Information
Extended Description
E2N310WU66 Eaton: Eaton E2 mining complete molded case circuit breaker, N-frame, E2N, Electronic LSI trip, 1250-5000A, Three-pole, 1000A, 600 Vac, 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 kAIC at 600 Vac, No term., 120 Vac mining rear w/ left pigtail
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2N310WU66
UPC
786679060100
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
UL Listed CSA Certified
Type
Specialty complete
Amperage Rating
1000 A
Voltage rating
600 Vac
Trip Type
Electronic LSI
Circuit breaker type
E2N
Magnetic trip range
1250-5000A
Terminals
Without terminals
Undervoltage release
120 Vac mining rear with left pigtail
Frame
N
Class
Mining
Interrupt rating
65 kAIC at 240 Vac 25 kAIC at 600 Vac 50 kAIC at 480 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
Digitrip 310+ vs. 310 electronic trip unit technical comparison
Digitrip 310+ vs. 310 electronic trip unit technical comparison
Digitrip 310+ vs. 310 electronic trip unit technical comparison
Digitrip 310+ vs. 310 electronic trip unit technical comparison
Understanding circuit breaker design and operation to improve safety and reliability in underground mining
Feature: Electronic LSI trip provides precise overcurrent protection with fast response. Business Impact: Improves protection selectivity, reduces arc-flash risk, and minimizes nuisance trips. Application: Ideal for mining conveyors, crushers, and motor-driven equipment across 600 Vac networks. Feature: N-frame, three-pole design rated at 1000 A. Business Impact: Handles high fault currents without torching components, enabling longer service intervals. Application: Main protection in mining switchboards and distribution panels near heavy equipment. Feature: Interrupt rating of 65 kAIC at 240 Vac (and 50 kAIC at 480 Vac, 25 kAIC at 600 Vac). Business Impact: Enhances system reliability under fault conditions, reducing downtime and capital waste. Application: Critical loads in underground mining yards and surface operations. Feature: Undervoltage release with 120 Vac mining rear and left pigtail. Business Impact: Enables remote tripping and integration with control logic for safer start/stop sequencing. Application: Conveyor drives and automated mining equipment control. Feature: Terminals without terminals (requires external terminations). Business Impact: Offers flexible, field-termination options and simplifies retrofits with existing buswork. Application: Retrofit into existing mine MCC rooms, service entrances, and modular panels. Feature: Certifications UL Listed and CSA Certified. Business Impact: Eases compliance reviews, procurement, and regulatory audits. Application: Compliance-heavy mining facilities and equipment fleets needing validated protection.
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FAQs
Installation requires external terminals since the device is specified without terminals. Plan for compatible bus bars and terminations, ensure mounting in a sturdy N-frame enclosure, and follow Eaton’s installation guidelines to preserve the electronic LSI trip integrity and space for rear 120 Vac undervoltage release wiring in mining rear configurations.
Key specs include a 1000 A amperage rating, 600 Vac voltage rating, three-pole configuration, and a 65 kAIC interrupt rating at 240 Vac (with 50 kAIC at 480 Vac and 25 kAIC at 600 Vac). It uses electronic LSI trip protection and has a 120 Vac undervoltage release with a mining rear left pigtail.
Yes. It is a mining-rated complete molded case circuit breaker (E2 mining series) with N-frame design and electronic trip, engineered for rugged underground conditions, high fault currents, and the need for reliable, regulatory-compliant protection in 600 Vac mine distribution networks.
The device is UL Listed and CSA Certified, signaling compliance with safety and performance standards for electrical protection devices. These certifications facilitate procurement, installation approvals, and regulatory audits in mining facilities where code adherence is mandatory.
Expect reduced downtime due to improved selectivity from the electronic LSI trip, lower maintenance costs from robust mining-grade construction, and smoother regulatory reviews thanks to UL CSA certifications. Regular inspection of the undervoltage release wiring and periodic functional tests are advised to maintain performance over the lifecycle.