Eaton NZMN2-ME90-NA Molded Case Breaker - UL Listed
Part Number: NZMN2-ME90-NA
Quick Summary
Eaton NZMN2-ME90-NA molded case circuit breaker protects motor circuits in industrial control panels. Engineers often grapple with nuisance trips, downtime, and miscoordination of protective devices as plants scale. This unit is UL Listed, IEC rated, and CSA Certified, helping you meet global compliance and simplify audits across facilities. Built for motor protection in compact spaces, it offers adjustable thermal-magnetic trip for precise coordination and enhanced safety. Its three-pole design supports balanced protection across all phases, while the Series NZM family delivers dependable performance in demanding environments. With reliable protection and straightforward installation, the NZMN2-ME90-NA supports safer energy distribution, reduced maintenance costs, and predictable uptime across manufacturing operations.
Product Information
Extended Description
NZMN2-ME90-NA Eaton: Eaton Series NZM molded case circuit breaker, TM motor protective electric trip MCCB 90 A 3 P Adj therm
Product Name
Eaton Series NZM molded case circuit breaker
Catalog Number
NZMN2-ME90-NA
UPC
786689652067
EAN
4015081170913
Product Length/Depth
7.244 in
Product Height
4.134 in
Product Width
5.866 in
Product Weight
5.6 lb
Certifications
UL Listed IEC Rated CSA Certified
Type
Series NZM
Amperage Rating
90 A
Series
Series NZM
Number of poles
Three-pole
90 A, three-pole design provides targeted motor protection with adjustable thermal-magnetic trip. The business impact is precise overload protection, enabling selective coordination and reducing nuisance trips. In practice, use in motor circuits where load profiles vary and you need reliable startup protection in panel assemblies. Certifcations UL Listed, IEC Rated, CSA Certified establish global compliance, shorten audits, and improve safety margins across multi-site installations, reducing regulatory risk and warranty issues. The compact dimensions and weight (7.244 in depth, 4.134 in height, 5.866 in width, 5.6 lb) support easier panel integration and faster installation, cutting relocation and retrofit time. NZM Series robustness translates to lower maintenance costs and longer service intervals in demanding environments. The adjustable trip feature aligns with motor control strategies, enabling improved coordination with protective devices and easier replacement within existing MCCB footprints.
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FAQs
For proper installation, ensure the three-pole unit sits securely in the panel, with conductors sized to support a 90 A rating and maintain proper clearances per NEC/IEC guidelines. Verify that the mounting footprint aligns with standard NZM MCCB enclosures and that the adjustable trip is accessible for field calibration. Use the provided catalog information to confirm compatibility with existing protection schemes and maintain coordination with upstream devices.
An adjustable thermal-magnetic trip allows you to tailor the protection level to the motor’s full-load amperage and startup surge. Start with a setting slightly above the motor’s running current, then apply a test load to verify coordination with other protection devices. Gradually fine-tune to prevent nuisance trips while still providing effective protection during overloads and short circuits.
Yes. The 90 A, three-pole NZM MCCB is designed to protect motors across diverse load profiles. Its adjustable trip accommodates start-up surges, while UL Listed, IEC rated, and CSA Certified credentials support compliance across multiple regions. Use it in panels that require reliable motor protection and straightforward replacement within the NZM family footprint.
The NZMN2-ME90-NA is UL Listed, IEC Rated, and CSA Certified. UL Listed confirms safety and performance to U.S. standards, IEC Rating ensures alignment with international electrical norms, and CSA Certification supports Canadian and other North American compliance. Together, these certifications simplify audits, support global deployment, and reduce risk during regulatory reviews.
Maintenance relies on dependable trip performance and minimal nuisance trips. The adjustable trip reduces unnecessary replacements by aligning protection with actual motor loads, improving uptime and energy efficiency. While upfront costs may be offset by fewer panel trips and easier retrofit compatibility within the NZM series, long-term ROI comes from safer operation and reduced downtime.