Eaton NFMI2F Mechanical Interlock - UL Listed
Part Number: NFMI2F
Quick Summary
Eaton NFMI2F Mechanical Interlock enables safe, two-way operation for NRX NF frame breakers in industrial panels. In busy facilities, misoperation and access to safety mechanisms can drive downtime and increase risk. CSA Certified, ANSI, and UL Listed, it aligns with major standards while enabling safer, code-compliant panel design. This interlock also integrates with the Series NRX ecosystem for streamlined installation, improved reliability, and longer-term maintenance savings. For engineers, the compact footprint and straightforward mounting simplify panel layouts and spare parts inventories. Coupled with Eaton's warranty terms, the solution supports long project cycles and predictable service budgets. In short, NFMI2F delivers safer operation, faster commissioning, and measurable uptime gains.
Product Information
Extended Description
NFMI2F Eaton: Eaton Power Defense ICCB mechanical interlock, Fixed breaker, NF Frame, Two-Way
Product Name
Eaton Series NRX mechanical interlock
Catalog Number
NFMI2F
UPC
786685673318
Product Length/Depth
9 in
Product Height
2.25 in
Product Width
4.5 in
Product Weight
5 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
NEMA Compliant
Certifications
CSA Certified ANSI UL Listed
Circuit breaker type
Fixed
Frame
NF
Accessories
Mechanical interlock
Series
Series NRX
Two-way mechanical interlock is the core feature; it prevents misoperation and simultaneous engagement of breakers, safeguarding NRX NF frame panel installations in manufacturing environments. This reduces arc-flash exposure during maintenance and cuts unplanned downtime, delivering tangible safety and productivity gains for the shop floor. NF frame compatibility and fixed breaker design make integration straightforward, lowering install time and field adjustments. The NFMI2F aligns with Series NRX components and uses a mechanical interlock accessory to simplify wiring and reduce mis-sequencing errors. Compliance and certification include CSA Certified, ANSI, UL Listed, providing regulatory confidence and risk reduction, with NEMA Compliant status supporting code-adherent installations across North American facilities. Warranty and lifecycle impacts include a one-year warranty from installation or 18 months from shipment, minimizing ownership risk and enabling steady budgeting. Installation and ongoing maintenance emphasize minimal training and rapid replacement, reducing downtime and service costs. The 9 in L x 4.5 in W x 2.25 in H footprint and 5 lb weight support compact panel layouts in tight control rooms, making NFMI2F a practical upgrade for demanding environments.
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FAQs
Yes. NFMI2F is designed specifically for Eaton Series NRX NF frame fixed breakers and uses the included mechanical interlock accessory to assure proper two-way operation. It integrates into NRX panels with standard mounting, minimizing rework and supporting streamlined installation within existing control architectures.
Key specs include a fixed breaker type, NF frame compatibility, two-way interlock, dimensions of 9 in length, 4.5 in width, 2.25 in height, and a weight of 5 lb. Certifications include CSA Certified, ANSI, and UL Listed, with NEMA Compliant status for North American installations.
Ideal for industrial control panels and electrical protection & circuit control applications that rely on NRX NF frame breakers. It is particularly valuable in manufacturing lines and automation cells where safe interlock control and quick commissioning are priorities, helping to meet safety and regulatory requirements while reducing downtime.
NFMI2F meets CSA Certified, ANSI, and UL Listed standards, with NEMA Compliant status. This combination provides regulatory alignment for North American installations, supports code-compliant panel design, and reduces compliance risk in regulated industries.
The interlock’s robust mechanical design supports long service life with minimal maintenance, contributing to uptime gains and predictable operating budgets. The one-year warranty (or 18 months from shipment) mitigates ownership risk, while its compatibility with NRX NF frame components simplifies spares and reduces total cost of ownership over the panel lifecycle.