Eaton KDM3400W5MW Complete MCCB - UL Listed
Part Number: KDM3400W5MW
Quick Summary
The Eaton KDM3400W5MW complete molded case circuit breaker protects mining electrical systems in demanding underground and surface environments. Operators and engineers often contend with nuisance trips and downtime; this MCCB's interchangeable thermal-magnetic trip helps coordinate protection and reduce unplanned outages. UL Listed certification supports safety compliance for mining installations, while the mining-class KD frame and three-pole design ensure consistent performance across equipment. With 400 A amperage rating and voltage capability of 600 Vac / 250 Vdc, it supports scalable protection for evolving mine loads. The unit is compatible with standard Eaton accessories and field-installable options, enabling faster integration, simplified procurement, and lower maintenance costs.
Product Information
Extended Description
KDM3400W5MW Eaton: Eaton E2 mining complete molded case circuit breaker, K-frame, KD, Interchangeable thermal-magnetic trip, 1250-2500A, Three-pole, 400A, 600 Vac, 250 Vdc, 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac, 10 kAIC at 250 Vdc
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
KDM3400W5MW
UPC
786689800857
Product Length/Depth
4.1 in
Product Height
5.5 in
Product Width
5.5 in
Product Weight
11.5 lb
Certifications
UL Listed
Amperage Rating
400 A
Voltage rating
600 Vac, 250 Vdc
Trip Type
T207
Circuit breaker type
KD
Circuit breaker frame type
Complete breaker
Terminals
Without terminals
Frame
K
Class
Mining
Interrupt rating
35 kAIC at 480 Vac 25 kAIC at 600 Vac 65 kAIC at 240 Vac 10 kAIC at 250 Vdc
Number of poles
Three-pole
Trip rating
1250-2500 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
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
Interchangeable thermal-magnetic trip with T207 timing provides precise protection coordination for mining panels. This reduces nuisance trips and downtime, delivering more predictable motor starts and longer equipment life. KD frame, frame K, complete breaker design, and three-pole configuration support reliable integration into existing mining switchgear. Terminals are supplied without terminals, enabling field-mitted lugs that match your cabinet or busbar arrangement and speed up installation. UL Listed certification supports safety compliance; it also helps with MSHA documentation when deploying in underground facilities. 400 A amperage rating with 600 Vac and 250 Vdc capability covers a broad range of mining loads in a single device. This reduces stocking complexity and procurement costs while simplifying spare-part strategies. Application: use in mining power distribution panels where high-current protection is needed. Extensive documentation and compatibility resources, including Digitrip 310+ comparison and datasheets, provide a clear path for optimal protection settings and maintenance planning. Access to catalogs and white papers reduces commissioning time and improves protection coordination across your mining assets.
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FAQs
The KDM3400W5MW uses a KD frame and is a complete three-pole mining MCCB. Terminals are not included, so you should source compatible field-installable lugs or terminal kits to match your cabinet or busbar arrangement. Follow Eaton installation guidance and torque specs from the datasheets to ensure a secure, code-compliant connection during panel mounting.
The device is rated for 400 A with 600 VAC and 250 VDC capabilities. It features an interrupt rating up to 65 kAIC at 240 VAC, 35 kAIC at 480 VAC, 25 kAIC at 600 VAC, and 10 kAIC at 250 VDC. The trip type is T207, and the unit is a three-pole KD frame mining MCCB, designed for high-demand mining applications.
Yes. This mining-class, three-pole MCCB with a KD frame is suited for underground and surface mining service centers, conveyors, and panels. Its 400 A rating and broad voltage range support reliable protection of motors and feeders, while UL Listed certification helps validate performance and safety in demanding mining environments.
The product carries UL Listed certification, which supports safety compliance for electrical protection devices in mining installations. For mining-specific regulatory needs, Eaton provides MSHA-related documentation and engineering support to help with safety audits and site approvals during deployment.
Although the base model uses a mechanical thermal-magnetic trip (T207), Eaton offers Digitrip 310+ related resources for advanced protection coordination. Access to datasheets, technical comparisons, and mining MCCB documentation accelerates commissioning, optimizes protection settings, reduces downtime, and supports long-term maintenance planning across mining assets.