Eaton NZMH4-VE1600 Molded Case Circuit Breaker - UL Listed
Part Number: NZMH4-VE1600
Quick Summary
NZMH4-VE1600 molded case circuit breaker from Eaton provides reliable overcurrent protection for three-pole 690 V power distribution in industrial panels. Engineers often wrestle with nuisance trips, limited selectivity, and lengthy commissioning when protecting critical loads—this device coordinates with upstream protection to reduce false trips. This unit carries UL Listed safety certification and is engineered for selective and generator protection within the NZM4 frame, delivering robust performance in demanding environments. Designed for bolt-on front-screw installation, it also streamlines wiring and reduces panel footprint, supporting faster commissioning and safer operation while maintaining compliance.
Product Information
Extended Description
NZMH4-VE1600 Eaton: Eaton Series NZM complete molded case circuit breaker, NZM4-frame, NZMH4, Thermal-magnetic trip, Three-pole, 1600A, 690 Vac, 85 kAIC at 480 Vac, Bolt-on, Selective and gen. protect., 800-1600A, Front screw, 800-1600A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH4-VE1600
EAN
4015082657772
Product Length/Depth
8.26 in
Product Height
8.14 in
Product Width
8.14 in
Product Weight
46 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
1600 A
Voltage rating
690 V AC
Trip Type
T268
Circuit breaker type
NZMH4
Terminals
Bolt-on
Frame
NZM4
Class
Selective and generator protection
Accessories
Rocker lever, motor drive
Adjustment range short-circuit release
1600-16000A delayed, 3200-19200A delayed
Setting Range Ol Protector
800-1600A
Short-circuit breaking capacity
85 kAIC
Interrupt rating
85 kAIC at 480 Vac
Connection
Front screw
Overload range
800-1600A
Number of poles
Three-pole
Feature → Business Impact → Application: The NZMH4-VE1600 delivers 1600 A rating with 85 kAIC short-circuit capacity, enabling higher fault tolerance and safeguarding large motor and distribution circuits, which translates to reduced downtime and longer equipment life in industrial plants. Feature → Business Impact → Application: Front screw terminals with bolt-on compatibility simplify field wiring and retrofit projects, accelerating panel upgrades and minimizing installation errors in new builds or replacements. Feature → Business Impact → Application: NZM4 frame compatibility with three-pole design and T268 trip characteristics improves protection coordination and selective breaking, supporting reliable operation in critical power paths for manufacturing lines and data-center environments. Feature → Business Impact → Application: Adjustable setting range for Ol protector (800–1600 A) and extended short-circuit release ranges (1600–16000 A delayed, 3200–19200 A delayed) provide precise coordination with upstream devices, reducing over-tripping during startup. Feature → Business Impact → Application: Accessories such as rocker lever and motor drive support flexible control schemes, enabling easier integration with existing automation architectures and modernization programs. Feature → Business Impact → Application: 690 V AC operation and UL Listed certification deliver compliance and safety confidence across global installations, where scalable protection and straightforward maintenance are essential for uptime and total cost of ownership.
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FAQs
Install the NZMH4-VE1600 using the front-screw, bolt-on terminals designed for the NZM4 frame. Verify the three-pole configuration, ensure proper clearance for 690 V operation, and set the Ol protector within the 800-1600 A range. Use the rocker lever or motor drive accessories as needed to integrate with your control scheme and maintain coordinated protection.
The device is rated for 690 V AC, with an amperage rating of 1600 A and a short-circuit breaking capacity of 85 kAIC. It features a three-pole configuration, 8.26 in depth, and 8.14 in height and width, with bolt-on terminals for secure, field-proven connections.
Yes. The class is listed as selective and generator protection, and the T268 trip type supports coordinated protection strategies essential for reliable generator start-up and power transfer in industrial environments, helping prevent unnecessary tripping and facilitating safe operation.
The NZMH4-VE1600 carries UL Listed certification, signaling compliance with recognized safety standards. This certification aids in regulatory acceptance, simplifies procurement for global projects, and supports safer maintenance practices across diverse industrial applications.
With a robust 1600 A rating, 85 kAIC capacity, and optional accessories like rocker lever and motor drive, the unit promotes extended service intervals and faster maintenance cycles. The UL Listed status also supports easier auditing and compliance, contributing to reduced downtime and lower total cost of ownership over the equipment’s life.