Eaton E2LW3450MRW Mining MCCB - 450A, 1200V, 10kAIC
Part Number: E2LW3450MRW
Quick Summary
The Eaton E2LW3450MRW mining complete molded case circuit breaker protects demanding mining power systems, helping prevent costly outages in rugged environments. For engineers contending with nuisance trips and retrofit challenges, this unit offers a complete breaker with an interchangeable magnetic trip for rapid maintenance and coordination. It carries UL Listed and CSA Certified approvals, supporting compliance in regulated mining installations. By delivering a 450 A rating at 1200 Vac with a 10 kAIC interrupt capability, it safeguards feeders and motors while limiting fault energy. This MCCB integrates with Eaton accessories and simplifies installation, translating to lower downtime and long-term cost savings for mining operations.
Product Information
Extended Description
E2LW3450MRW Eaton: Eaton E2 mining complete molded case circuit breaker, L-frame, E2LW, Complete breaker, Interchangeable magnetic only trip type, 1750-3500A trip rating, Three-pole, 450A, 1200 Vac, 10 kAIC at 1200 Vac, Without terminals, Mining
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2LW3450MRW
UPC
786685887067
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
UL Listed CSA Certified
Amperage Rating
450 A
Voltage rating
1200 Vac
Trip Type
T205
Circuit breaker type
E2LW
Circuit breaker frame type
Complete breaker
Magnetic trip range
1750-3500A
Terminals
Without terminals
Frame
L
Class
Mining
Interrupt rating
10 kAIC at 1200 Vac
Number of poles
Three-pole
Trip rating
1750-3500 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
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: L-frame complete breaker design provides a sturdy platform for mining switchgear and is compatible with standard Eaton accessories. Business impact: streamlined installation and reliable coordination with existing protection schemes. Application: ideal for mining feeder panels and service centers where space is at a premium and predictable trip protection is essential. Feature: 450 A amperage rating paired with 1200 Vac operation enables safe control of high‑voltage mining circuits. Business impact: reduces overcurrent risk and improves motor start reliability, cutting unplanned outages. Application: best suited for primary distribution in underground mining facilities. Feature: 10 kAIC interrupt rating at 1200 Vac ensures strong fault current handling. Business impact: enhanced equipment protection and safer fault clearance in high-energy environments. Application: suitable for critical mining loads and high‑energy feeders. Feature: Magnetic trip range 1750‑3500 A (T205) offers precise coordination and selectivity. Business impact: minimizes nuisance trips and downstream equipment damage. Application: valuable in multi‑stage protection schemes across mining installations. Feature: Three-pole, frame L, mining class construction with terminals without, and a 25 lb weight profile. Business impact: compact installation footprint with enhanced ruggedness and easier field wiring. Application: fits standard mining MCCB enclosures while maintaining load segregation. Feature: Warranty aligns with Eaton policy (one year from installation or 18 months from shipment). Business impact: predictable support terms and reduced risk for fleet maintenance planning. Application: ensures post‑sale service continuity for mining operations.
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FAQs
The E2LW3450MRW uses an L-frame complete breaker design with three poles and is specified as without terminals, simplifying retrofit into compatible Eaton enclosures. Ensure you have the appropriate mounting kit and enclosure assembly for a 1200 Vac, 450 A system. The unit weighs about 25 lb and measures roughly 13 in by 10 in by 7 in, aiding space planning in compact mining panels.
The 10 kAIC rating at 1200 Vac provides substantial fault current capability, enabling rapid and safe interruption of large energy faults. This reduces arc energy exposure to downstream equipment and wiring, improves equipment longevity, and supports compliance with mining protection standards. It also aids in coordinating with upstream protective devices to minimize system-wide outages.
Yes. The E2LW3450MRW is designed for mining guardrails with a mining-class frame and includes UL Listed and CSA Certified ratings, indicating compliance with key safety and performance standards relevant to underground installations. The magnetic trip and T205 characteristics further support selective protection in challenging mining environments while maintaining robust protection.
Key specs include 450 A amperage rating, 1200 Vac voltage rating, 10 kAIC interrupt rating, three poles, frame L, and magnetic trip range 1750–3500 A (T205). The device is a mining class complete breaker without terminals, weighing about 25 lb, with dimensions near 13 by 10 by 7 inches. Verify compatibility with enclosure, available accessories, and wiring methods for your installation.
Eaton provides a warranty aligned with policy 25-000: one year from the date of installation or eighteen months from shipment, whichever occurs first. This covers defects and readiness for service. For mining operations, you also have access to Eaton’s technical resources, datasheets, and engineering support to optimize protection coordination and maintenance planning.