Eaton E2NM312MW Mining MCCB - 25 kAIC, 1200A

Part Number: E2NM312MW
Manufacturer
Eaton
Part number
E2NM312MW

Quick Summary

The Eaton E2NM312MW mining complete molded case circuit breaker protects mining electrical systems by interrupting fault currents with a rugged, ready-to-install MCCB solution. In mining operations, downtime and arc-flash risk are ongoing challenges, so reliability and fast fault clearance matter. This model is designed for high-current environments, offering a 1200 A amperage rating and a 25 kAIC interrupt rating at 1000 Vac, with a triple-pole N-frame configuration. While certifications should be verified with Eaton, the documentation and mining-focused features align with MSHA guidelines and heavy-duty service expectations. Businesses gain improved safety compliance, reduced maintenance surprises, and better control over your protective-relay and switchgear strategies for mining applications.

Product Information

Extended Description

E2NM312MW Eaton: Eaton E2 mining complete molded case circuit breaker, N-frame, E2NM, Complete breaker, Interchangeable magnetic only trip, 1250-5000A trip rating, Three-pole, 1200A, 1000Y/577 Vac, 250 Vdc, 25 kAIC at 1000 Vac, Without terminals, Mining
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2NM312MW
UPC
786679059937
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.
Compliances
Contact Manufacturer
Certifications
Contact Manufacturer
Type
Specialty complete
Amperage Rating
1200 A
Voltage rating
1000Y/577 Vac, 250 Vdc
Trip Type
T205
Circuit breaker type
E2NM
Magnetic trip range
1250-5000A
Terminals
Without terminals
Frame
N
Class
Mining
Interrupt rating
25 kAIC at 1000 Vac
Number of poles
Three-pole
Feature → Business Impact → Application: The E2NM312MW uses a three-pole N-frame design with a 1200 A amperage rating, delivering robust protection for high-current mining feeders while simplifying panel design and reducing conductor clutter in crowded switchgear rooms. This directly translates to safer, more reliable distribution and measurable uptime gains in underground and surface mining operations. Feature → Business Impact → Application: Interchangeable magnetic trip options (1250-5000 A range) support rapid fault isolation without sacrificing selectivity, which minimizes arc flash exposure and sequence disruption in critical mining circuits. The result is faster restoration after faults and lower maintenance costs for ore processing and material handling lines. Feature → Business Impact → Application: Magnetic-trip-only operation and a 25 kAIC interrupt rating at 1000 Vac provide superior short-circuit withstand for harsh mining environments, helping you meet stringent safety and reliability targets while protecting feeders and motors from damaging faults. Feature → Business Impact → Application: Frame N, three-pole configuration and “without terminals” design allow flexible integration with site-specific terminal accessories and mounting options, reducing retrofit time and enabling straightforward field upgrades across mining facilities. Feature → Business Impact → Application: Rated for 1000Y/577 Vac and 250 Vdc with a T205 trip type, this MCCB delivers dependable performance across AC and DC control circuits common in mining plants, improving coordination with protection relays and downstream gear. Feature → Business Impact → Application: Eaton’s mining-specific MCCB aligns with industry-maintained safety programs and available MSHA documentation, helping you document compliance, reduce risk, and justify TCO improvements for long-wall or room-and-pillar configurations. These benefits collectively support a lower total cost of ownership, faster maintenance cycles, and more predictable protection for mining electrical systems, while ensuring compatibility with common accessories and retrofit pathways.

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FAQs

E2NM312MW is a three-pole, N-frame mining MCCB designed for straightforward integration. It ships without terminals, so verify compatible terminal accessories and mounting hardware per Eaton documentation. Ensure panel space supports an 8.25 in width and 8.25 in height footprint, and confirm alignment with 1000 Vac ratings and the T205 trip type during wiring and bus connections.
Key specs include a 1200 A amperage rating, 25 kAIC interrupt rating at 1000 Vac, and a 1000Y/577 Vac, 250 Vdc voltage rating. These figures enable reliable fault interruption for high-current mining feeders, support rapid fault clearance, and help meet rigorous safety requirements in both underground and surface mining installations.
The product is designed for mining use and Eaton documents mining-focused performance data. While the model aligns with mining protection practices, MSHA-specific compliance should be verified via Eaton catalogs and the MSHA-related documentation available in Eaton’s downloads. Contact Eaton for certs and policy letters to ensure full regulatory alignment.
Certifications are listed as manufacturer-provided and should be confirmed directly with Eaton. Downloadable resources include MSHA policy letters and mining MCCB specification sheets. Always verify current certifications with Eaton before deployment to ensure compatibility with local codes and project requirements.
With a 25 kAIC rating and rugged mining orientation, the E2NM312MW offers reliable protection that reduces unplanned downtime. The one-year warranty from installation (or 18 months from shipment) helps minimize lifecycle costs. The absence of terminals provides installation flexibility, potentially lowering retrofit time and supporting longer mean time between maintenance in harsh mining environments.