Eaton NZMN1-A50 Molded Case Breaker - UL Listed
Part Number: NZMN1-A50
Quick Summary
NZMN1-A50 molded case circuit breaker protects industrial distribution panels with thermal-magnetic trip for reliable control. Engineers frequently battle nuisance trips, space constraints, and mounting complexity in high-density automation cabinets. UL Listed certification underscores compliance integrity for industrial protection schemes. Featuring a front-frame clamp, rocker lever, 40–50 A setting range, and a 50 kAIC short-circuit rating, it supports fast installation and reliable operation across control panels. Designed for the NZM1 frame with three poles, it integrates seamlessly into standard protection schemes and reduces panel downtime through straightforward maintenance and clear status indication.
Product Information
Extended Description
NZMN1-A50 Eaton: Eaton Series NZM complete molded case circuit breaker, NZM1-frame, NZMN1, Thermal-magnetic trip, 300-500A trip rating, Three-pole, 50A, 690 Vac, 500 Vdc, 50 kAIC, Dist. circuit protection, Rocker lever, 40-50A, Front frame clamp, 40-50A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN1-A50
EAN
4015082590826
Product Length/Depth
2.68 in
Product Height
5.71 in
Product Width
3.54 in
Product Weight
3.5 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
50 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
40-50A
Short-circuit breaking capacity
50 kAIC
Interrupt rating
50 kAIC
Connection
Front frame clamp
Overload range
40-50A
Number of poles
Three-pole
Trip rating
300-500 A
Thermal-magnetic trip (T268) with a 40–50 A setting range helps prevent overloads while minimizing nuisance trips in demanding panels. The business impact is lower maintenance costs and fewer unplanned outages, supporting higher line uptime in automation environments. This configuration is well-suited for 690 Vac distribution circuits in control cabinets. A 50 A amperage rating paired with 690 Vac and 500 Vdc capabilities ensures a safe disconnect under heavy load while maintaining selectivity. The 50 kAIC interrupt capacity handles fault currents typical of modern industrial plants, reducing arcing and equipment damage during faults. Three-pole NZMN1 frame with front-frame clamp simplifies installation and field retrofits, while the rocker lever provides reliable manual operation. The setting range of 40–50 A aligns with feeder protection strategies, enabling straightforward coordination with upstream devices. The compact footprint (2.68 in depth, 5.71 in height, 3.54 in width) and a light 3.5 lb weight support dense panel layouts and easier service access, cutting enclosure costs and installation time. Warranty aligns with Eaton policy and the UL Listed certification confirms compliance with electrical safety standards for distribution protection devices.
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FAQs
NZMN1-A50 uses a front-frame clamp mounting designed for front-frame installations on NZM1 frame panels. This enables secure, tool-friendly wiring and fast field retrofits without extensive enclosure modification, improving install times and reducing panel downtime.
The device provides a 50 A amperage rating, supports 690 Vac and 500 Vdc, and offers a 50 kAIC short-circuit breaking capacity with a T268 trip type. It is a three-pole unit on the NZM1 frame, intended for robust distribution protection in industrial applications.
Yes, the NZMN1-A50 is designed for 690 Vac distribution circuits. Installation benefits include a front-frame clamp for quick mounting, a rocker lever for reliable operation, and an appropriate 40–50 A overload setting range that aligns with common feeder protection schemes, aiding safe and compliant panel builds.
The NZMN1-A50 carries UL Listed certification, confirming electrical safety compliance. Warranty terms follow Eaton's policy 25-000, typically one year from installation or eighteen months from shipment, whichever occurs first, providing coverage for manufacturing defects and early-life reliability concerns.
The device features a 40–50 A overload setting range and a 50 kAIC interrupt capacity, which supports coordination with upstream protection and downstream feeders. Coupled with the NZM1 frame and front-frame mounting, this enables straightforward integration into existing distribution schemes and enhances maintainability in automation environments.