Eaton NZMN2-4-A250/160 Molded Case Breaker - 50 kAIC
Part Number: NZMN2-4-A250/160
Quick Summary
NZMN2-4-A250/160 is an Eaton molded case circuit breaker designed for distribution protection in industrial control panels. This device helps prevent costly downtime by providing reliable, thermal-magnetic protection with fast tripping for fault currents. Manufacturer-specified certifications are listed as available upon request, ensuring you meet regional compliance needs. Built on the NZM2 frame with a four-pole configuration, it delivers 250 A at 690 Vac and 750 Vdc, with a 50 kAIC interrupt rating and T268 trip type. Its rocker lever and compact footprint simplify installation and maintenance, while motor-drive compatibility supports modern automation architectures. This combination delivers robust protection, operational efficiency, and scalable suitability for control panels and power distribution.
Product Information
Extended Description
NZMN2-4-A250/160 Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMN2, Thermal-magnetic trip type, Four-pole, 250A, 690 Vac, 750 Vdc, 50 kAIC, Distribution circuit protection, Rocker lever, motor drive
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN2-4-A250/160
EAN
4015082658670
Product Length/Depth
5.51 in
Product Height
5.87 in
Product Width
5.87 in
Product Weight
0.01 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.
Compliances
Contact Manufacturer
Certifications
Contact Manufacturer
Amperage Rating
250 A
Voltage rating
690 Vac, 750 Vdc
Trip Type
T268
Circuit breaker type
NZMN2
Frame
NZM2
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Interrupt rating
50 kAIC
Number of poles
Four-pole
Feature → Business Impact → Application: Four-pole NZMN2 frame provides coordinated protection across a three-phase plus neutral system, reducing the risk of uneven fault currents and enabling selective tripping in complex panels. This translates to improved uptime and reduced collateral damage in manufacturing lines and processing facilities; ideal for power distribution in industrial control panels. Feature → Thermal-magnetic trip Type T268 delivers fast response to overloads and short circuits, minimizing heat buildup and protecting both equipment and personnel; applicable in motor drives and feeders where short fault durations matter. Feature → 50 kAIC interrupt rating supports high fault-current environments, enabling reliable interruption of large faults in data centers, heavy machinery, and distribution enclosures without cascading failures. Feature → 690 Vac / 750 Vdc voltage rating offers compatibility with mixed AC/DC systems, simplifying panel design and reducing parts count for control cabinets. Feature → Rocker lever and motor-drive compatibility enable quick manual operation and easier retrofits, supporting faster commissioning and reduced maintenance downtime. Feature → NZM2 frame and four-pole architecture ensure easy integration with existing bus systems and standard mounting footprints, delivering installation efficiency and consistent performance across assemblies. These attributes collectively drive lower total cost of ownership through fewer trips, easier diagnostics, and scalable protection for evolving industrial automation environments.
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FAQs
For proper installation, verify the device matches the NZM2 frame footprint and four-pole configuration in your panel. Ensure correct alignment with the distribution bus and secure mounting hardware. Use the rocker lever for manual operation during commissioning, and confirm door clearance and enough space for maintenance access. With a 5.87 in width and height, plan a compact enclosure to maintain ventilation and cable routing efficiency.
Key specs include a 250 A amperage rating, 690 Vac / 750 Vdc voltage rating, and a 50 kAIC interrupt rating. The trip type is T268, and the breaker is of the NZMN2 type within the NZM2 frame. It is a four-pole device designed for distribution circuit protection, suitable for both AC and DC segments in mixed-application panels.
Yes, the NZMN2-4-A250/160 is compatible with motor-drive applications thanks to its four-pole design, robust interrupt rating, and thermal-magnetic protection that mitigates short-circuit transients. Its compact footprint and rocker lever support straightforward commissioning, while motor-drive compatibility helps streamline automation integration and panel layout.
Warranty details are governed by Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. For certifications and compliance, the manufacturer provides current documentation upon request, ensuring you can meet regional regulatory requirements and site standards during procurement and installation.
A 50 kAIC interrupt rating ensures reliable interruption of high fault currents, reducing the likelihood of cascading faults and equipment damage. This translates to improved uptime for critical processes, lower repair costs, and greater protection for feeders and downstream devices in industrial power distribution and control panels.