Eaton NZMH4-AEF700-NA Molded Case Circuit Breaker - UL Listed
Part Number: NZMH4-AEF700-NA
Quick Summary
The molded case circuit breaker NZMH4-AEF700-NA from Eaton provides reliable overcurrent protection for industrial distribution panels. Engineers often confront downtime and selective protection challenges when upgrading protection devices in complex power systems. This unit carries UL Listed safety certification and supports 690 V AC three-pole operation, with an 700 A setting and 85 kAIC short-circuit capacity, ensuring fast fault clearance. Its front screw connections, plus available rocker lever and motor drive accessories, simplify installation and servicing. In practice, the combination of robust protection, easy retrofits within the NZM4 frame, and clear warranty terms translates to lower lifecycle costs and improved panel reliability for distribution circuit protection in demanding environments.
Product Information
Extended Description
NZMH4-AEF700-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM4-frame, NZMH4, Thermal-magnetic trip, 1400-8400A delayed, Three-pole, 700A, 690 Vac, 85 kAIC at 480 Vac, Distribution circuit protection, 700-700A, Front screw, 700-700A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH4-AEF700-NA
EAN
4015082711153
Product Length/Depth
8.26 in
Product Height
8.14 in
Product Width
8.14 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
700 A
Voltage rating
690 V AC
Trip Type
T268
Circuit breaker type
NZMH4
Frame
NZM4
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Setting Range Ol Protector
700-700A
Short-circuit breaking capacity
85 kAIC
Interrupt rating
85 kAIC at 480 Vac
Connection
Front screw
Overload range
700-700A
Number of poles
Three-pole
Feature: 700 A amperage rating. Benefit: Handles high-load distribution without nuisance trips, reducing equipment stress and maintenance needs in industrial environments. Application: Main feeders and motor control centers in manufacturing lines. Feature: 690 V AC voltage rating. Benefit: Supports high-voltage distribution networks with reliable protection against overloads, improving safety margins and system uptime. Application: Industrial automation panels and plant distribution. Feature: Three-pole design with front screw connections. Benefit: Ensures common-trip operation across all phases and straightforward, secure installation, minimizing wiring errors. Application: Control panels and switchgear assemblies. Feature: 85 kAIC short-circuit capacity at 480 VAC. Benefit: Withstands high fault currents, protecting downstream equipment and reducing the risk of cascading failures. Application: Plant feeders and emergency power circuits. Feature: T268 trip type with 700–700 A setting. Benefit: Precise overload protection and predictable tripping behavior, enabling selective protection strategies. Application: Power distribution networks requiring calibrated protection. Feature: NZM4 frame compatibility with optional rocker lever and motor drive accessories. Benefit: Flexible retrofit options and enhanced operation for demanding machinery. Application: Upgrades in existing NZM installations, minimizing downtime.
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FAQs
NZMH4-AEF700-NA uses the NZM4 frame with front screw terminations, enabling straightforward mounting in standard NZM panels. The unit supports three-pole operation and is compatible with optional rocker lever and motor drive accessories, simplifying replacement and upgrading processes in existing control panels while maintaining proper clearance and wiring practices.
The breaker is rated for 700 A and 690 V AC with a short-circuit breaking capacity of 85 kAIC at 480 VAC. It employs a T268 trip type and a three-pole arrangement, delivering reliable overload and short-circuit protection for distribution circuits. These specifications support robust protection in industrial power networks.
Yes. With its 700 A rating, 690 V AC capability, 85 kAIC fault current withstand, and three-pole design, this breaker is well-suited for protecting motors, feeders, and control circuits in industrial automation environments. Its modular NZM4 frame and compatible accessories support efficient panel integration and maintenance.
The NZMH4-AEF700-NA carries UL Listed certification, ensuring conformity with recognized safety standards for electrical protective devices. This certification supports compliance in many global markets and provides a documented safety baseline for panel assemblies and installation teams handling distribution circuit protection in industrial facilities.
The unit’s robust protection reduces nuisance trips and minimizes unplanned downtime, contributing to higher equipment availability. With straightforward front-screw installation and compatible accessories, maintenance tasks are faster and safer, lowering labor costs. Over time, these factors translate to improved total cost of ownership (TCO) for panel protection in demanding industrial settings.