Eaton NZMN4-VE1200-NA Molded Case Circuit Breaker - 50 kAIC
Part Number: NZMN4-VE1200-NA
Quick Summary
Eaton NZMN4-VE1200-NA molded case circuit breaker protects electrical distributions in industrial automation and power panels. Engineers often contend with nuisance trips and poor selectivity; this device delivers reliable thermal-magnetic protection and precise coordination to minimize downtime. It carries UL Listed, CSA Certified, and IEC Rated certifications to support compliance across North American and international installations. With bolt-on and front-screw connection options, plus generator protection and selective capabilities, it provides a scalable solution for OEM panel builders and retrofit projects while simplifying maintenance and service life.
Product Information
Extended Description
NZMN4-VE1200-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM4-frame, NZMN4, Thermal-magnetic trip, Three-pole, 1200A, 600 Vac, 50 kAIC at 400 Vac, Bolt-on, Selective and generator protection, Rocker lever, motor drive, Front screw, 630-1200A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN4-VE1200-NA
UPC
786685631516
Product Length/Depth
8.15 in
Product Height
8.27 in
Product Width
8.27 in
Product Weight
46.2 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 CSA Certified IEC Rated
Amperage Rating
1200 A
Voltage rating
600 Vac
Trip Type
T268
Circuit breaker type
NZMN4
Terminals
Bolt-on
Frame
NZM4
Class
Selective and generator protection
Accessories
Rocker lever, motor drive
Interrupt rating
50 kAIC at 400 Vac
Connection
Front screw
Overload range
630-1200A
Number of poles
Three-pole
Feature: Thermal-magnetic trip on the NZMN4 frame provides precise protection and fast fault clearing. Business Impact: Reduces nuisance trips and improves selectivity across multi-motor drives and conveyors, lowering unplanned downtime. Application: Motor control centers and manufacturing lines that demand reliable short-circuit protection. Feature: 50 kAIC interrupt rating at 400 Vac ensures robust fault current handling. Business Impact: Enhanced safety margins and code compliance for heavy industrial applications. Application: Large motor loads and critical process equipment in chemical plants and metal fabrication. Feature: Amperage rating of 1200 A and voltage rating of 600 Vac supports high-current switching. Business Impact: Supports large motor starter assemblies and power distribution without oversizing components. Application: Panel boards and switchgear in processing facilities. Feature: Three-pole design with bolt-on terminals and front screw connections. Business Impact: Flexible installation, easier field wiring, and faster maintenance in tight control panels. Application: OEM assemblies and retrofit projects requiring adaptable mounting and wiring options. Feature: NZM4 frame with overload range 630–1200 A and generator protection. Business Impact: Wide protection spectrum and generator-compatible settings reduce integration time. Application: Industrial plants with mixed loads and standby generation. Feature: Accessories including rocker lever and motor drive compatibility. Business Impact: Improves operability and integration with motor-drive systems, speeding commissioning. Application: OEM equipment and upgrades for motor-intensive processes.
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FAQs
NZMN4-VE1200-NA offers flexible mounting with front screw connections and bolt-on terminals, simplifying wiring in tight control panels and panelboard assemblies. This versatility supports both newer installations and retrofits, reducing wiring time and error risk while maintaining secure, code-compliant terminations in industrial environments.
The device is a three-pole breaker rated for 1200 A with a 600 Vac voltage rating and a 50 kAIC interrupt rating at 400 Vac. It employs thermal-magnetic trip protection (T268) within the NZMN4 frame, suitable for selective and generator protection in demanding industrial applications.
Yes. The NZMN4-VE1200-NA is designed for selective and generator protection, enabling coordinated shutdown and safe startup for systems with standby or auxiliary power. Its high interrupt rating and rigorous certification support reliable integration with generator-driven equipment and control panels.
This breaker is UL Listed, CSA Certified, and IEC Rated, aligning with broad regulatory requirements for North American and international panels. These certifications help ensure safe operation, traceability, and acceptance in diverse industrial installations and equipment approvals.
The product carries Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. For service life planning, refer to the Eaton policy 25-000 and schedule periodic inspection of trip settings, terminal connections, and mechanical operation during routine panel maintenance.