Eaton E2NM312MWA13S10 Mining MCCB - 25 kAIC at 1000 Vac
Part Number: E2NM312MWA13S10
Quick Summary
The Eaton E2NM312MWA13S10 is a mining MCCB that protects motors and feeders in mining operations. In harsh underground and surface conditions, unexpected trips and uncoordinated protection can trigger costly downtime. This unit’s magnetic trip range of 1250-5000 A and T205 trip type provide selective protection for large inductive loads while minimizing nuisance trips. While official certifications are documented by the manufacturer, Eaton references MSHA policy guidance and mining safety literature to support compliant operation. The design aligns with industry best practices for rugged, high-current protection, offering reliable performance alongside a flexible shunt trip and auxiliary switch configuration, and straightforward field installation. This translates to lower lifecycle costs and faster project commissioning with compatible Eaton accessories.
Product Information
Extended Description
E2NM312MWA13S10 Eaton: Eaton E2 mining complete molded case circuit breaker, N-frame, E2NM, Interchangeable magnetic only trip, 1250-5000A, Three-pole, 1200A, 1000Y/577 Vac, 250 Vdc, 25 kAIC at 1000 Vac, 110-127 Vac GF or 208-240 Vac rear w/ left pigtail
Product Name
Eaton E2 mining complete molded case circuit breaker
Catalog Number
E2NM312MWA13S10
UPC
782116035755
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
Auxiliary switch
2A-2B rear with right pigtail
Magnetic trip range
1250-5000A
Shunt trip
110-127 Vac GF or 208-240 Vac rear with left pigtail shunt
Terminals
Without terminals
Frame
N
Class
Mining
Interrupt rating
25 kAIC at 1000 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
Eaton Specification Sheet - E2NM312MWA13S10
Eaton Specification Sheet - E2NM312MWA13S10
Eaton Specification Sheet - E2NM312MWA13S10
Eaton Specification Sheet - E2NM312MWA13S10
Selling Policy 25-000 - Distribution and Control Products and Services
Understanding circuit breaker design and operation to improve safety and reliability in underground mining
Feature: 1200 A amperage rating enables direct protection of high-load mining feeders and motors. Business Impact: Reduces the risk of equipment damage and unplanned outages, delivering improved plant uptime. Application: Suitable for heavy mining circuits where continuous operation is critical. Long-tail keywords involved include mining MCCB, 1200 A protection, and high-current circuit protection. Feature: Magnetic trip range 1250-5000 A with Trip Type T205. Business Impact: Delivers selective protection and coordination to minimize nuisance trips during startup and load surges. Application: Protects large inductive loads in mining systems. Feature: N-frame, three-pole design, compatible with rugged mining layouts. Business Impact: Simplifies installation and improves fault clearing reliability. Application: Mine substations and motor control centers. Feature: Shunt trip and auxiliary switch options (110-127 Vac GF or 208-240 Vac rear with left pigtail; 2A-2B rear with right pigtail). Business Impact: Enables remote tripping and integrated control with plant automation, enhancing safety and operability. Application: Remote safety interlocks and automatic shutdown schemes. Feature: Without terminals (field-assembly-friendly interfaces) and compact footprint (5.5 in depth, 8.25 in height/width). Business Impact: Eases retrofits and panel integration, reducing installation time and wiring complexity. Application: Retrofit into existing MCCBs and new panel builds. Feature: 25 kAIC interrupt rating at 1000 Vac ensures robust fault interruption capacity. Business Impact: Improves protection margins for high-energy fault scenarios, lowering arc flash risk. Application: Underground mining circuits and high-energy feeders. Feature: Warranty and field support from Eaton. Business Impact: Lowers lifecycle risk and provides access to service literature and policy guidance. Application: Long-term maintenance planning and compliance documentation.
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FAQs
For reliable integration, verify the N-frame three-pole configuration and the 5.5 inch depth with a 8.25 inch height and width footprint. Note that terminals are provided separately, so plan for external connections or busbar interfaces. The model supports a rear-mounted shunt/auxiliary configuration (left or right pigtails) and a 1200 A rating suitable for mining feeders. Confirm panel clearance, wiring routing, and compliance with MSHA guidelines via Eaton technical literature before commissioning.
The 1250-5000A magnetic trip range provides selective, high-current protection, allowing coordination with upstream devices to avoid unnecessary trips during startup or surge events. The T205 trip type is designed for fast yet controlled interruption of fault currents, reducing damage to motors and cables. In mining applications, this translates to fewer nuisance trips and improved equipment uptime during peak load conditions.
Yes. The unit offers a shunt trip option (110-127 Vac GF or 208-240 Vac rear with left pigtail) and an auxiliary switch (2A-2B rear with right pigtail). Wiring is performed at the rear terminals, enabling remote shutdown and status signaling for integration with PLCs and safety interlocks. Ensure proper voltage compatibility, control supply isolation, and adherence to wiring diagrams from Eaton documentation during installation.
This model references MSHA policy guidance and Eaton mining safety literature to support compliant operation in mining environments. Official certifications such as CE or UL must be confirmed with the manufacturer and documented in your project file. Always consult Eaton’s MSHA-focused documentation and the MSHA policy letters provided in their literature to validate regulatory alignment and installation practices.
The 1200 A rating, 25 kAIC interrupt capability, and remote-trip options reduce downtime and damage risk, improving asset availability and maintenance efficiency. While upfront costs include panel integration and wiring, the long-term savings come from fewer unplanned outages, lower repair costs, and easier diagnostics with Eaton’s technical resources. This translates to shorter project timelines and a higher total cost of ownership advantage in mining operations.