Eaton NZMN2-A40-NA Molded Case Circuit Breaker - UL Listed
Part Number: NZMN2-A40-NA
Quick Summary
Eaton NZMN2-A40-NA molded case circuit breaker provides reliable overcurrent protection for distribution panels in industrial controls. For engineers designing compact, safe panels, nuisance trips and wiring complexity can slow projects and raise downtime. UL Listed certifies safety; for any additional compliance needs, consult Eaton. This solution supports distribution circuit protection with a three-pole arrangement and a robust 40 A rating, while offering compatibility with motor drives and modular NZM2 components. By combining proven protection with straightforward installation, it delivers lifecycle value, reduced maintenance, and improved panel reliability for industrial environments.
Product Information
Extended Description
NZMN2-A40-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMN2, Thermal-magnetic trip type, Three-pole, 40A, 690 Vac, 750 Vdc, 50 kAIC, Distribution circuit protection, Rocker lever, motor drive, Screw
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN2-A40-NA
EAN
4015082692209
Product Length/Depth
4.05 in
Product Height
7.24 in
Product Width
4.13 in
Product Weight
8 lb
Compliances
Contact Manufacturer
Certifications
UL Listed
Amperage Rating
40 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
Connection
Screw
Number of poles
Three-pole
The NZMN2-A40-NA delivers precise thermal-magnetic protection with a T268 trip type that minimizes fault damage and downtime, directly supporting ongoing production uptime and safety. Its three-pole design on the NZM2 frame provides balanced protection across three phases, simplifying panel wiring and reducing the risk of phase imbalance. With a 50 kAIC interrupt rating and screw connections, it handles high fault currents while enabling secure terminations, which lowers installation errors and call-backs. The rocker lever and available motor-drive accessory streamline testing and integration into control schemes, enabling quicker commissioning and easier maintenance. Its compact footprint (4.05 in depth, 7.24 in height, 4.13 in width) and 8 lb weight optimize panel density and reduce enclosure size. UL Listed certification supports regulatory compliance and vendor qualification in North American power systems.
Get a Quick Quote for a Eaton NZMN2-A40-NA
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton NZMN2-A40-NA?
Enquire Now
FAQs
NZMN2-A40-NA uses screw termination, which provides secure, vibration-resistant wiring connections ideal for dense control panels. Its three-pole design fits the NZM2 frame, enabling straightforward recess mounting and compatibility with Eaton protection components. For installation efficiency, align terminals to motor drives and distribution feeders while leveraging the rocker lever for quick operability testing.
This breaker is rated for 40 A with a voltage rating of 690 Vac and 750 Vdc. It features a thermal-magnetic trip with a T268 characteristic and an interrupt rating of 50 kAIC, suitable for protecting distribution circuits and motor drives. The unit is a three-pole device within the NZMN2 family, designed for reliable fault clearance in industrial environments.
Yes. The NZMN2-A40-NA is designed for distribution circuits that include motor drives, offering a robust interrupt rating and a compatible NZM2 frame. Its screw-terminals and optional motor-drive accessory facilitate integration into control schemes, ensuring dependable protection for motors and drives while simplifying commissioning and maintenance.
The NZMN2-A40-NA is UL Listed, providing demonstrated compliance with key North American safety standards. This certification supports procurement decisions and vendor qualification for panel builders. For additional certifications beyond UL Listed, consult Eaton to confirm availability and timelines for CE, SIL, or other regulatory requirements depending on region and application.
Routine inspection of screw-termination connections, lever operation, and trip function is recommended to prevent looseness and ensure reliable trips. The compact NZM2 frame supports modular upgrades within Eaton’s protection family, enabling phased lifecycle improvements. Its high interrupt rating and durable construction help reduce replacement frequency, while UL Listed certification simplifies compliance and reduces risk during audits.