Eaton E2LW3400W Molded Case Breaker - CSA UL Listed
Part Number: E2LW3400W
Quick Summary
The Eaton E2LW3400W molded case circuit breaker protects mining power systems from overloads and faults. In harsh mining environments, space constraints and downtime challenge protection choices, making reliable, easy-to-specify equipment essential. This unit is CSA Certified and UL Listed, ensuring compliance with critical safety standards for underground mining installations and industrial sectors. The E2LW3400W features an interchangeable thermal-magnetic trip and a complete breaker that supports scalable protection up to 2000–4000 A in a three-pole, 1200 V system. For procurement teams, the three-pole, L-frame design and absence of terminals simplify installation and maintenance, while compatibility with the broader E2 mining MCCB family helps streamline stocking and service in large mining operations.
Product Information
Extended Description
E2LW3400W Eaton: Eaton E2 mining complete molded case circuit breaker, L-frame, E2LW, Complete breaker, Interchangeable thermal-magnetic trip type, 2000-4000A trip rating, Three-pole, 400A, 1200 Vac, 10 kAIC at 1200 Vac, Without terminals, Mining
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2LW3400W
UPC
786685887012
Product Length/Depth
13 in
Product Height
7 in
Product Width
10 in
Product Weight
25 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
Amperage Rating
400 A
Voltage rating
1200 Vac
Trip Type
T207
Circuit breaker type
E2LW
Circuit breaker frame type
Complete breaker
Magnetic trip range
2000-4000A
Shunt trip
110-127 Vac GF or 208-240 Vac same side right pigtail
Terminals
Without terminals
Frame
L
Class
Mining
Interrupt rating
10 kAIC at 1200 Vac
Number of poles
Three-pole
Trip rating
2000-4000 A
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
Eaton Specification Sheet - E2LW3400W
Eaton Specification Sheet - E2LW3400W
Eaton Specification Sheet - E2LW3400W
Eaton Specification Sheet - E2LW3400W
Understanding circuit breaker design and operation to improve safety and reliability in underground mining
Feature: L-frame three-pole complete breaker with a 400 A amperage rating and a 1200 Vac operating voltage supports high-current mining circuits. Business Impact: Provides robust protection with ample headroom, reducing nuisance trips during motor starts and startup surges. Application: Ideal for mining MCCB panels and rugged underground equipment where reliability and space efficiency are critical. Feature: Interchangeable thermal-magnetic trip type enables precise protection without stocking multiple trip units. Business Impact: Cuts spare-part inventory and speeds field service, lowering total cost of ownership. Application: Fits the E2 mining MCCB family for consistent protection across varied mine loads. Feature: Shunt trip option (110–127 Vac GF or 208–240 Vac same side right pigtail) supports remote tripping. Business Impact: Enables integration with centralized safety systems and emergency shutdown protocols. Application: Common in mining facilities where remote control is required. Feature: 10 kAIC interrupt rating at 1200 Vac delivers fast fault interruption. Business Impact: Reduces arc energy exposure and potential equipment damage, improving safety metrics. Application: Critical for long cable runs and high fault current scenarios typical in mining plants. Feature: Without terminals design eases installation, complemented by a rugged mining-class rating (Frame L, Three-pole). Business Impact: Simplifies wiring, minimizes panel depth, and improves serviceability in harsh environments. Application: Suitable for retrofit projects and new builds in both underground and surface mining operations. Feature: Certifications CSA Certified UL Listed ensure compliance with mining and electrical standards. Business Impact: Supports audit readiness and customer acceptance, while enabling competitive procurement. Warranty alignment with Eaton policy further reduces risk for maintenance planning.
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FAQs
Install the E2LW3400W by aligning its L-frame, three-pole design with a compatible mining MCCB panel. The unit ships without terminals, so add appropriate terminals during mounting and wiring. Ensure the 1200 Vac rating and the 2000–4000 A magnetic trip setting match the load profile. Verify panel clearance and torque specs per Eaton installation guidelines to avoid overheating or loose connections.
The E2LW3400W has a 400 A amperage rating, 1200 Vac voltage rating, and a 10 kAIC interrupt rating. It features a magnetic trip range of 2000–4000 A and a three-pole configuration in an L-frame assembly. A shunt-trip option supports remote tripping for enhanced safety: 110–127 Vac GF or 208–240 Vac on the same side right pigtail.
Yes. The E2LW3400W is designed for mining applications with a mining-class rating and CSA/UL certifications, delivering reliable protection for underground circuits. Its high interrupt rating, remote-tripping capability, and compatibility with the E2 mining MCCB family support rugged, high-current mine installations while simplifying maintenance and parts management.
The E2LW3400W is CSA Certified and UL Listed, confirming compliance with key safety standards for underground mining and industrial electrical equipment. These certifications support audit readiness, regulatory compliance, and confidence in performance under demanding mining conditions.
Eaton’s policy offers a one-year warranty from installation or eighteen months from shipment, whichever occurs first. This, combined with interchangeability within the E2 mining MCCB family and straightforward installation (no terminals required), helps reduce maintenance downtime and spare-parts costs, delivering predictable long-term total cost of ownership.