Eaton NZMN4-AEF1000-NA NZM4 MCCB - 50 kAIC at 600V
Part Number: NZMN4-AEF1000-NA
Quick Summary
The NZMN4-AEF1000-NA molded case circuit breaker from Eaton provides reliable overcurrent protection for industrial power distribution panels. Many panel builders struggle to balance high voltage ratings, fast installation, and dependable fault clearance in demanding environments. This unit meets CSA Certified, IEC Rated, and UL Listed standards while offering a 1000 A rating and 600 Vac capability. With bolt-on terminals, front-screw connections, and a rocker-lever option for motor-drive applications, it reduces installation time and total cost. Engineers benefit from clear ratings, maintainable design, and scalable protection as systems grow. Its 50 kAIC interrupt rating at 400 Vac and straightforward front-access mounting support compliant, efficient distribution protection across industrial facilities.
Product Information
Extended Description
NZMN4-AEF1000-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM4-frame, NZMN4, Thermal-magnetic trip type, Three-pole, 1000A, 600 Vac, 50 kAIC at 400 Vac, Bolt-on, Distribution circuit protection, Rocker lever, motor drive, Front screw
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN4-AEF1000-NA
UPC
786685631349
Product Length/Depth
8.15 in
Product Height
8.27 in
Product Width
8.27 in
Product Weight
46.2 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
CSA Certified IEC Rated UL Listed
Amperage Rating
1000 A
Voltage rating
600 Vac
Trip Type
T268
Circuit breaker type
NZMN4
Terminals
Bolt-on
Frame
NZM4
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Interrupt rating
50 kAIC at 400 Vac
Connection
Front screw
Number of poles
Three-pole
Feature: High-capacity protection with a 1000 A amperage rating and a 600 Vac rating ensures feeders and busbars stay protected under peak loads. Business Impact: Reduces nuisance trips and enables equipment to operate at full performance without unnecessary downtime. Application: Suitable for distribution panels in manufacturing lines and heavy equipment rooms where reliability is critical. Feature: Thermal-magnetic trip (T268) provides selective protection against overloads and short circuits. Impact: Improves protection coordination with downstream devices, minimizing collateral outages. Application: Ideal for motor drives and automation panels. Feature: 50 kAIC interrupt rating at 400 Vac. Impact: Supports robust fault current handling, protecting downstream devices and reducing arc-flash risk. Application: Large industrial facilities and critical power paths. Feature: Bolt-on terminals and front-screw connections enable fast, field-friendly wiring. Impact: Simplifies panel wiring, enhances installation speed, and supports retrofit projects. Application: OEMs and panel builders upgrading legacy equipment. Feature: Optional rocker lever and motor-drive compatibility improve operation and control integration. Impact: Enhances operator ergonomics and automation sequencing, cutting commissioning time. Application: Control panels and automated lines. Feature: CSA, IEC, UL certifications and a 1-year (plus) warranty framework provide compliance confidence and predictable service life. Impact: Reduces supplier risk and streamlines procurement for global projects. Application: Systems requiring formal safety and reliability certifications.
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FAQs
NZMN4-AEF1000-NA uses a bolt-on mounting arrangement with front-screw terminals for straightforward wiring in panel assemblies. This combination supports rapid field wiring, simplifies retrofit projects, and reduces commissioning time. The three-pole NZM4 frame is designed for distribution panels and industrial enclosures, with space-efficient dimensions that fit common DIN rail and chassis layouts.
Key specifications include a 1000 A amperage rating, 600 Vac voltage rating, and a 50 kAIC interrupt rating at 400 Vac. It is a three-pole NZMN4 frame device with thermal-magnetic T268 trip. Terminals are front-accessible via bolt-on connections, and it includes optional rocker-lever accessories for motor-drive applications.
Yes. The NZMN4-AEF1000-NA is designed for motor-drive protection, featuring a thermal-magnetic trip and a rocker-lever accessory option to simplify control integration. Its high interrupt rating and robust construction support reliable protection for motors, drives, and auxiliary equipment in automated manufacturing environments.
The device is CSA Certified, IEC Rated, and UL Listed, ensuring compliance with global safety and performance standards. These certifications support procurement for multi-site OEMs and reduce qualification time for regulatory approvals in diverse markets.
Eaton provides a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. Regular maintenance involves inspection of terminals, verification of contacts, and confirmation of trip function. The modular design and available accessories support straightforward servicing and lifecycle management in ongoing production environments.