Eaton NZMN1-A32 Complete MCCB - UL Listed, 50 kAIC
Part Number: NZMN1-A32
Quick Summary
Eaton NZMN1-A32 molded case circuit breaker protects electrical distribution in industrial automation panels. In fast-moving projects, selecting the right trip characteristics and coordinating with upstream devices can delay commissioning and increase risk of nuisance trips. UL Listed certification supports safe operation and compliance for North American installations, while the 690 VAC / 500 VDC rating and 50 kAIC interrupt capacity enable robust feeder protection. Built on the NZM1 frame with a front-frame clamp and a three-pole configuration, this MCCB simplifies installation and delivers consistent performance across assemblies. Leveraging this protection device helps OEMs reduce downtime, streamline maintenance planning, and improve system reliability in highly automated environments.
Product Information
Extended Description
NZMN1-A32 Eaton: Eaton Series NZM complete molded case circuit breaker, NZM1-frame, NZMN1, Thermal-magnetic trip, 350A trip rating, Three-pole, 32A, 690 Vac, 500 Vdc, 50 kAIC, Distribution circuit protection, Rocker lever, 25-32A, Front frame clamp, 25-32A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN1-A32
EAN
4015082812331
Product Length/Depth
2.68 in
Product Height
5.71 in
Product Width
3.54 in
Product Weight
2.36 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
32 A
Voltage rating
690 Vac, 500 Vdc
Trip Type
T268
Circuit breaker type
NZMN1
Frame
NZM1
Class
Distribution circuit protection
Accessories
Rocker lever
Setting Range Ol Protector
25-32A
Short-circuit breaking capacity
50 kAIC
Interrupt rating
50 kAIC
Connection
Front frame clamp
Overload range
25-32A
Number of poles
Three-pole
Trip rating
350 A
Compact circuit-breakers and switch-disconnectors up to 1600 A
Eaton Specification Sheet - NZMN1-A32
Selling Policy 25-000 - Distribution and Control Products and Services
NZMN1-A32 is a three-pole, thermal-magnetic molded case circuit breaker built on the NZM1 frame with a front-frame clamp for straightforward mounting in control panels. This design translates to faster installation, fewer field errors, and easier spare-part logistics for panel builders. The device features an adjustable overload setting range of 25-32 A and a precise T268 trip type, delivering targeted protection for mixed loads and motors while minimizing nuisance trips and energy waste. With a short-circuit breaking capacity of 50 kAIC and ratings up to 690 VAC / 500 VDC, it provides dependable fault-current clearance in demanding industrial networks, reducing downstream damage and unplanned downtime. The rocker lever and front-frame access support quick testing, fault isolation, and routine maintenance, enhancing overall equipment effectiveness. Compatibility with the NZM1 family means common components, simpler inventory, and streamlined upgrades for OEMs and integrators seeking scalable protection solutions. These features collectively support compliance, improved uptime, and lower total cost of ownership in panel assemblies and machines.
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FAQs
To install NZMN1-A32, align the breaker with the NZM1 frame cutout, engage the front-frame clamp, and secure the device with the appropriate hardware. The three-pole arrangement simplifies wiring, while the rocker lever provides clear on/off indication during commissioning. Ensure the bus connections are clean and tightened to specification to maintain proper thermal performance and tripping accuracy.
For motor protection at 690 VAC, set the overload within the 25-32 A range (adjustable) to match motor full-load current, and rely on the T268 trip type for fast fault clearance. The NZMN1-A32 offers 50 kAIC interrupt capability, which helps protect feeders against high short-circuit currents common in industrial motor circuits, reducing damage and downtime.
Yes. With three poles, 690 VAC / 500 VDC ratings, and 50 kAIC interrupt capacity, the NZMN1-A32 is designed for distribution circuit protection in industrial control panels and switchgear. Its compact NZM1 frame and front-frame clamp simplify integration, while UL Listed certification supports compliance in North American installations.
The NZMN1-A32 carries UL Listed certification, supporting compliance with North American electrical safety standards. While regional requirements may vary, UL Listed products are widely recognized for their reliability in distribution protection. Always verify local codes and any additional regional certifications that may apply to your specific project.
The NZMN1-A32 offers a predictable, long service life with a robust trip mechanism and a front-frame clamp that facilitates quick testing and replacements. Its modular NZM1 design reduces spare-part variety, lowers maintenance time, and improves uptime. The 32 A setting range and 50 kAIC rating support selective protection, contributing to reduced energy waste and lower total cost of ownership over the system’s life.