Eaton NZMN4-VEF1000-NA Molded Case Circuit Breaker - 50 kAIC
Part Number: NZMN4-VEF1000-NA
Quick Summary
The Eaton NZMN4-VEF1000-NA molded case circuit breaker protects industrial power systems by interrupting faults in electrical drives and distribution panels. Projects often face nuisance trips and complex protection coordination when integrating generators and motor loads. This unit is UL Listed, IEC Rated, and CSA Certified, aligning with global safety and performance standards. With selective protection and robust amperage ratings, it delivers reliable uptime, easier panel design, and compliant protection for 600 Vac systems. Its bolt-on terminals and front-screw access simplify installation in tight control panels, reducing commissioning time. Investing in this breaker supports lifecycle cost reduction through lower replacement risk and maintenance costs. For OEMs and end users, it enables scalable protection strategies across expanding industrial networks.
Product Information
Extended Description
NZMN4-VEF1000-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, Selective and generator protection, Rocker lever, motor drive, Front screw
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN4-VEF1000-NA
UPC
786685631424
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
UL Listed IEC Rated CSA Certified
Type
Selective
Amperage Rating
1000 A
Voltage rating
600 Vac
Trip Type
T268
Circuit breaker type
NZMN4
Terminals
Bolt-on
Frame
NZM4
Class
Selective and generator protection
Accessories
Rocker lever, motor drive
Interrupt rating
50 kAIC at 400 Vac
Connection
Front screw
Number of poles
Three-pole
Feature → Business Impact → Application: The NZMN4-VEF1000-NA uses a robust NZM4 frame with a three-pole design and a 1000 A rating to deliver precise selective protection for large motor drives and critical feeders. This translates to fewer nuisance trips and safer generator protection, reducing downtime in high-demand manufacturing lines. Application: suitable for high-current distribution panels and motor control centers where uptime is critical and protection coordination must be maintained across multiple loads. Long-tail keywords: selective protection, motor drive protection, generator protection, 600 Vac systems, high-current MCCs. Feature → Business Impact → Application: With a 50 kAIC interrupt rating at 400 Vac, the device withstands high fault currents, preserving equipment and downstream breakers while enabling safer maintenance windows. Application: ideal for feeder breakers in production halls and process lines requiring strong fault-clearing capability. Feature → Business Impact → Application: Front-screw terminals and bolt-on mounting streamline wiring and retrofit projects, shortening commissioning times and enabling easier field modifications. Application: retrofit or new panel builds where quick, secure connections matter. Feature → Business Impact → Application: Included accessories like rocker lever and motor drive support direct operator interaction and seamless integration with motor control systems. Application: control panels that require intuitive operation and reliable motor protection. Feature → Business Impact → Application: UL Listed, IEC Rated, and CSA Certified provide clear regulatory alignment, enabling global deployment with reduced compliance risk. Application: OEMs supplying multi-region equipment benefit from a single, compliant protection solution. Feature → Business Impact → Application: Comprehensive warranty and service terms help minimize lifecycle risk and support predictable maintenance planning. Application: asset management and long-term total cost of ownership optimization.
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FAQs
For installation, plan for bolt-on terminals and front-screw access to simplify wiring and panel mounting. Its 8.15 in depth and 8.27 in height/width footprint fits standard control cabinets, while the three-pole NZM4 frame supports uniform coordination across feeders. Use appropriate torque values and confirm clearance for venting and heat dissipation to maintain performance.
Key specs include a 1000 A amperage rating, 600 Vac voltage rating, and a 50 kAIC interrupt capacity at 400 Vac. The device uses a T268 trip type for reliable thermal-magnetic action, and the unit is UL Listed, IEC Rated, and CSA Certified, ensuring broad compliance for industrial applications and global deployments.
Yes. The NZMN4-VEF1000-NA is designed for generator protection in conjunction with selective protection schemes. Its high interrupt rating, along with 600 Vac compatibility and generator protection class, supports safe isolation during faults and reduces the risk of generator-related downstream disturbances in mixed-load environments.
The unit is UL Listed, IEC Rated, and CSA Certified, reflecting adherence to recognized safety and performance standards. These certifications facilitate multi-region deployments, help meet electrical code requirements, and simplify supplier qualification for OEMs and end users seeking compliant protection solutions.
Expected benefits include reduced nuisance trips and lower maintenance costs due to selective protection and generator protection features. The robust interrupt capability minimizes replacement needs for feeders, while front-screw terminals speed installation. Over the life of a panel, this can translate to lower downtime, quicker commissioning, and improved equipment availability.