Eaton NZMN4-AEF800-NA Molded Case Breaker - UL Listed
Part Number: NZMN4-AEF800-NA
Quick Summary
NZMN4-AEF800-NA molded case breaker from Eaton delivers reliable distribution protection for industrial panels and equipment. Facilities often wrestle with selecting a device that can carry 800 A, trip rapidly under fault conditions, and still offer service-friendly maintenance. UL Listed certification demonstrates safety and compliance, while the unit supports 600 Vac operation and a 50 kAIC short-circuit rating, making it suitable for demanding electrical installations. With bolt-on, front screw terminals and optional rocker lever or motor-drive accessories, it accelerates installation and simplifies routine testing and replacements.
Product Information
Extended Description
NZMN4-AEF800-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM4-frame, NZMN4, Thermal-magnetic trip, 1600-9600A delayed, Three-pole, 800A, 600 Vac, 50 kAIC at 400 Vac, Bolt-on, Distribution circuit protection, 800-800A, Front screw, 800-800A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN4-AEF800-NA
EAN
4015082711108
Product Length/Depth
8.15 in
Product Height
8.268 in
Product Width
8.268 in
Product Weight
8.3 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
Amperage Rating
800 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
Setting Range Ol Protector
800-800A
Short-circuit breaking capacity
50 kAIC
Interrupt rating
50 kAIC at 400 Vac
Connection
Front screw
Overload range
800-800A
Number of poles
Three-pole
Feature: The NZMN4-AEF800-NA uses an 800 A amperage rating in the NZM4 frame, with a 50 kAIC short-circuit capacity at 400 Vac. Business Impact: This combination enables fast fault clearing on heavy feeders while minimizing upstream interruptions and downtime. Application: Ideal for distribution panels and high-load feeders in manufacturing, utilities, and process industries. Feature: Thermal-magnetic trip (T268) provides reliable protection for both overload and short-circuit events. Business Impact: Improves system uptime and prevents equipment damage by ensuring predictable responses to faults. Application: Suitable for electrical rooms and machine control panels operating at 600 Vac. Feature: Three-pole, bolt-on, front-screw configuration simplifies wiring and reduces installation time. Business Impact: Accelerates commissioning and reduces field labor costs while ensuring solid mechanical integrity. Application: Common in compact switchgear, panels, and distributed control cabinets. Feature: Optional rocker lever and motor-drive accessories extend automation compatibility. Business Impact: Enables convenient manual control or seamless motor drive integration, supporting modern machine automation strategies. Application: Industrial conveyors, pumps, and press lines requiring quick interlocks or remote control. Feature: UL Listed certification and robust construction support compliance and long-term reliability. Business Impact: Streamlines procurement for regulated environments and reduces risk of non-conformance during audits. Application: North American installations with stringent safety standards and service lifecycles.
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FAQs
Install NZMN4-AEF800-NA using its bolt-on terminals and front screw connections for secure wiring. Ensure adequate clearance for cooling and future maintenance, and verify mounting on compatible enclosure spaces. Use the three-pole configuration for three-phase systems and follow torque specifications from Eaton's guideline to prevent looseness and arcing.
The unit features an 800 A amperage rating, 600 Vac operating voltage, and a 50 kAIC short-circuit breaking capacity at 400 Vac. It uses a thermal-magnetic trip (T268) for overload and short-circuit protection, and comes in a three-pole, NZMN4 frame with front screw terminals for robust, field-proven protection.
Yes. The NZMN4-AEF800-NA is designed for 600 Vac systems and is configured as a three-pole device, making it ideal for three-phase distribution panels, machine controls, and heavy-duty feeders in industrial environments. Its 800 A rating supports high-load applications while maintaining selectivity and safety.
Yes. The product specifications include compatible rocker lever and motor-drive accessories, enabling convenient manual operation or integration with motor-control schemes. This supports streamlined automation workflows and easier commissioning in production lines requiring quick motor isolation.
The unit carries UL Listed certification for safety and compliance. Warranty is Eaton’s standard policy: 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This provides assurance for field reliability and predictable maintenance planning.