Eaton NZMN1-A32-NA Molded Case Circuit Breaker - UL Listed
Part Number: NZMN1-A32-NA
Quick Summary
Eaton NZMN1-A32-NA molded case circuit breaker provides reliable overcurrent protection for industrial control panels and distribution boards. This compact, three-pole device helps engineers balance fast fault isolation with low nuisance trips in demanding environments. UL Listed and aligned with CSA and IEC standards, it supports compliant installations across North American and international sites. The front-frame clamp design simplifies mounting in standard panel assemblies, while an adjustable 25-32 A setting enables precise protection tailored to your load. For panel builders seeking scalable protection with a small footprint, the NZMN1-A32-NA delivers consistent performance and easier maintenance throughout its lifecycle.
Product Information
Extended Description
NZMN1-A32-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM1-frame, NZMN1, Thermal-magnetic trip, 350A trip rating, Three-pole, 32A, 500 Vdc, 50 kAIC, Dist. circuit protection, 25-32A, Front frame clamp, 25-32A, conforms to UL/CSA and IEC
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN1-A32-NA
EAN
4015082815721
Product Length/Depth
2.68 in
Product Height
5.71 in
Product Width
3.54 in
Product Weight
2.45 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
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-NA
Feature → Business Impact → Application: Thermal-magnetic trip with a 350 A trip rating provides fast, selective fault clearance, reducing equipment damage and downtime in motor and process control circuits. This translates to higher line reliability and lower maintenance costs for distribution panels in manufacturing lines and utility rooms. Application: Use in three-phase systems up to 690 VAC or 500 VDC for DC drive systems, enabling safe protection in mixed voltage environments. Feature → Business Impact → Application: 50 kAIC interrupt rating ensures robust short-circuit protection, allowing panel designers to consolidate upstream protection without oversizing components. Application: Ideal for compact switchgear or control cabinets with dense wiring. Feature → Business Impact → Application: Front frame clamp connection simplifies installation, improves contact reliability, and reduces field labor time during panel assembly and rework. Application: Great for OEMs delivering modular control panels with repeatable install sequences. Feature → Business Impact → Application: 32 A rated amperage with 25-32 A setting range supports precise feeder protection while preserving downstream equipment integrity. Application: Suitable for distribution feeders and MCCs with moderate load currents. Feature → Business Impact → Application: Three-pole design optimizes phase balance and trips all poles simultaneously, preventing through-faults in three-phase systems. Application: Essential for motor starters and process lines requiring coordinated protection. Feature → Business Impact → Application: Rocker lever accessory provides quick manual control, improving commissioning and testing efficiency. Application: Useful during start-up and routine maintenance in industrial plants.
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FAQs
NZMN1-A32-NA utilizes a front-frame clamp connection designed for standard NZM1 frame panels. This simplifies mounting, reduces installation time, and provides secure, repeatable contact. The three-pole design supports typical 3‑phase circuits, and its compact 2.68 inch depth fits tight control cabinets, easing panel density without compromising accessibility for maintenance.
Key specs include a 32 A amperage rating, 690 VAC and 500 VDC voltage ratings, a 50 kAIC short-circuit capacity, and a 25-32 A setting range with a 350 A trip rating. The T268 trip type indicates magnetic/thermal trip coordination for reliable fault clearing, while the three-pole configuration ensures simultaneous protection across all phases.
Yes. The NZMN1-A32-NA is rated for 500 VDC in addition to 690 VAC, making it suitable for DC drive systems and other DC circuits within that voltage range. Ensure that the load and wiring configurations align with the 32 A rating and short-circuit capacity to maintain safe and compliant operation.
The device is UL Listed, with broader alignment to CSA and IEC standards per manufacturer guidance. This certification set supports regulatory compliance in North American installations and many international markets, facilitating safer procurement and easier integration into approved control panels and switchgear assemblies.
The NZMN1-A32-NA offers durable thermal-magnetic protection with a 50 kAIC interrupt rating, reducing fault propagation and downtime. A standard front-frame clamp design speeds commissioning and replacements, while UL CSA IEC compliance minimizes rework for regulatory audits. Warranty terms (one year from installation or 18 months from shipment) provide a defined ownership timeline and support.