Eaton NZMH4-VEF600-NA Molded Case Circuit Breaker - 85 kAIC
Part Number: NZMH4-VEF600-NA
Quick Summary
NZMH4-VEF600-NA molded case circuit breaker protects industrial electrical systems and drives with reliable, selective protection. Engineers often struggle with nuisance trips, coordination across feeders, and generator protection during startup in complex plants. UL Listed, IEC Rated, and CSA Certified, this device meets global safety and performance requirements for multinational installations. Designed for motor drives and front-screw installations, it supports quick, secure mounting while reducing commissioning time. Its 600 A rating at 690 V AC and 85 kAIC interrupt rating deliver robust fault handling and long-term reliability for critical processes.
Product Information
Extended Description
NZMH4-VEF600-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM4-frame, NZMH4, Thermal-magnetic trip type, Three-pole, 600A, 690 Vac, 85 kAIC at 480 Vac, Selective and generator protection, Rocker lever, motor drive, Front screw
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH4-VEF600-NA
UPC
786685631448
Product Length/Depth
8.14 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 IEC Rated CSA Certified
Amperage Rating
600 A
Voltage rating
690 V AC
Trip Type
T268
Circuit breaker type
NZMH4
Frame
NZM4
Class
Selective and generator protection
Accessories
Rocker lever, motor drive
Interrupt rating
85 kAIC at 480 Vac
Connection
Front screw
Number of poles
Three-pole
Eaton Specification Sheet - NZMH4-VEF600-NA
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 600 A amperage rating and 690 V AC voltage. Business Impact: Supports high-load motor circuits with reduced risk of nuisance trips and overloads, enabling stable production lines. Application: Heavy-duty industrial drives and large motor feeders benefit from reliable protection. Feature: 85 kAIC interrupt rating at 480 VAC. Business Impact: Withstand high fault currents, improving safety margins and limiting downstream damage. Application: Service entrances and feeders in demanding manufacturing environments gain robust protection. Feature: T268 trip type. Business Impact: Enhances selective protection and generator support, minimizing unnecessary outages. Application: Power distribution panels and hybrid systems require coordinated protection. Feature: NZM4 frame, three-pole design. Business Impact: Streamlines integration with existing NZM4 equipment, reducing panel redesigns and spare-part complexity. Application: Panel builders and OEMs value plug-and-play compatibility. Feature: Accessories rocker lever and motor drive. Business Impact: Improves operator ergonomics and integration with motor-drive control schemes. Application: Control panels with frequent motor-start/stop cycles benefit from easier operation. Feature: Front screw connection. Business Impact: Simplifies installation and maintenance, decreasing commissioning time. Application: Installation in compact or retrofit panels where rear access is limited. Certifications and compliance: UL Listed, IEC Rated, CSA Certified ensure global compliance, reducing certification delays and widening market reach.
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FAQs
For control panel installations, NZMH4-VEF600-NA uses a front screw connection and a compact 8.14 in depth footprint. Its three-pole NZM4 frame aligns with common Eaton assemblies, simplifying mounting in standard 19 in panels. The rocker lever assists quick operation, while the device’s 46 lb weight remains manageable in retrofit projects. Plan for adequate clearance for service and maintenance access.
T268 trip type is designed to provide coordinated protection across multiple feeders and loads, ensuring only the faulted circuit trips. In generator-protected setups, T268 helps isolate faults without unnecessary outages elsewhere, preserving critical processes. This improves uptime in facilities with mixed motor loads and standby generation, reducing production losses during faults.
Yes. With a 690 V AC rating and a three-pole configuration in the NZM4 frame, NZMH4-VEF600-NA is purpose-built for industrial drives and high-current motor circuits. The 600 A nominal rating supports large motors, while the 85 kAIC interrupt rating at 480 VAC provides strong fault clearance capability in drive-fed panels, helping meet drive protection and safety requirements.
The NZMH4-VEF600-NA carries UL Listed, IEC Rated, and CSA Certified marks. These certifications ensure compliance with global electrical safety and performance standards, facilitating international deployments and reducing certification lead times for multinational facilities. They also provide assurance to procurement and maintenance teams regarding reliability and traceability.
The device’s robust fault handling (85 kAIC) and selective protection reduce unplanned downtime and repair costs. Front-screw installation and rocker lever design lower installation and routine maintenance time, improving overall lifecycle cost. In assemblies with motor drives and generators, this MCCB supports longer mean time between failures and smoother preventive maintenance schedules.