Eaton NZMN4-AE800-NA Molded Case Circuit Breaker - UL Listed
Part Number: NZMN4-AE800-NA
Quick Summary
NZMN4-AE800-NA Molded Case Circuit Breaker protects distribution panels and machinery by interrupting fault currents. Engineers often struggle with reliable coordination, space constraints, and downtime in busy electrical rooms. This unit carries UL Listed safety certification and is rated for 600 Vac with a 50 kAIC short-circuit capacity at 400 Vac, supporting strong protection in demanding installations. With its NZM4 frame and 800 A rating, it delivers scalable protection for growing facilities. The design also enables straightforward installation in compact panels and aligns with standard electrical practices, reducing wiring complexity and enabling faster commissioning for distributors and integrators alike.
Product Information
Extended Description
NZMN4-AE800-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, 400-800A, Front screw, 400-800A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN4-AE800-NA
EAN
4015082711207
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
400-800A
Short-circuit breaking capacity
50 kAIC
Interrupt rating
50 kAIC at 400 Vac
Connection
Front screw
Overload range
400-800A
Number of poles
Three-pole
Eaton Specification Sheet - NZMN4-AE800-NA
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 800 A amperage rating with 50 kAIC capacity. Benefit: Protects high‑current feeders and large motors while tolerating fault surges, reducing unplanned downtime and equipment burn‑outs. Application: Heavy-duty feeders in manufacturing and process facilities. Feature: 600 Vac voltage rating with 400-800 A setting range and T268 trip type. Benefit: Precise protection coordination and selective tripping, improving uptime and lowering maintenance costs. Application: Panel boards feeding multi‑motor lines and critical loads. Feature: Three-pole design with front screw and bolt-on terminals. Benefit: Reliable 3‑phase protection with straightforward wiring and serviceability, enabling faster installations and safer maintenance. Application: Distribution panels, switchgear upgrades, and retrofit projects. Feature: NZMN4 frame with rocker lever and motor drive compatibility. Benefit: Easy integration into automation schemes and remote/motor-drive control, reducing integration time and enabling smarter protection schemes. Application: Industrial automation installations and retrofit upgrades. Feature: Warranty and certifications (UL Listed; standard Eaton policy). Benefit: Clear risk management and service commitment, supporting compliance programs and warranty handling during system commissioning. Application: Procurement and OEM/specification processes in regulated facilities.
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FAQs
NZMN4-AE800-NA is designed for front-screw connections with bolt-on terminals, making it compatible with common 3-pole distribution panels that use the NZM4 frame. When upgrading, verify panel space, mounting clearance, and tray fit. With an 8.15 in length and 8.3 lb weight, plan for adequate support in existing enclosures and racks.
Key specs include an 800 A amperage rating, 600 Vac voltage rating, and 50 kAIC short-circuit breaking capacity at 400 Vac. The setting range for OL protection is 400–800 A, and the trip type is T268. Front screw termination and bolt-on mounting support reliable wiring and easy field adjustment for coordinated protection.
Yes. The 800 A rating supports large feeders and motor protection scenarios commonly found in heavy manufacturing. With 50 kAIC capacity, it can withstand motor startup surges and fault events without nuisance trips. Use within the NZMN4 frame for consistent trip characteristics and straightforward integration with motor drives and control circuits.
This model is UL Listed, ensuring compliance with widely adopted safety standards for North American electrical protection devices. UL Listing supports conformity assessments for distribution protection equipment, helping with procurement qualification, system safety audits, and compliance documentation within industrial facilities.
The NZMN4-AE800-NA enables precise protection coordination, reducing nuisance trips and extending component life in feeders and panels. Installation features like front screw connections and bolt-on terminals speed commissioning and maintenance. Coupled with optional accessories and a standard warranty, it supports predictable maintenance budgeting and improved overall system uptime.