Eaton NZMN1-AF20-NA Molded Case Breaker - UL Listed
Part Number: NZMN1-AF20-NA
Quick Summary
NZMN1-AF20-NA molded case circuit breaker from Eaton protects distribution circuits in industrial panels. Users often struggle with nuisance trips, maintenance delays, and unexpected downtime when protection devices underperform or fail during critical production runs. UL Listed certification underpins safer operation and reliable performance in demanding environments, while the NZM1 frame supports compact, code-compliant panel layouts. This model delivers thermal-magnetic protection with a 50 kAIC interrupt capability and a 20 A setting, enabling precise overload control across AC and DC circuits. The rugged construction, along with front-frame mounting and a rocker lever, simplifies commissioning, testing, and future upgrades, unlocking better uptime and lower lifecycle costs for your electrical distribution system.
Product Information
Extended Description
NZMN1-AF20-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM1-frame, NZMN1, Thermal-magnetic trip, 350A trip rating, Three-pole, 20A, 690 Vac, 500 Vdc, 50 kAIC, Distribution circuit protection, Rocker lever, 20-20A, Front frame clamp, 20-20A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN1-AF20-NA
EAN
4015082815653
Product Length/Depth
2.68 in
Product Height
5.71 in
Product Width
3.54 in
Product Weight
3 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
20 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
20-20A
Short-circuit breaking capacity
50 kAIC
Interrupt rating
50 kAIC
Connection
Front frame clamp
Overload range
20-20A
Number of poles
Three-pole
Trip rating
350 A
Compact circuit-breakers and switch-disconnectors up to 1600 A
Eaton Specification Sheet - NZMN1-AF20-NA
Feature: Three-pole NZM1 frame with a 20 A rating and front-frame clamp. Business Impact: Delivers balanced three-phase protection with secure, code-friendly mounting, reducing wiring errors and installation time. Application: Ideal for distribution panels in industrial machinery and panelboards in manufacturing lines. Feature: Thermal-magnetic trip (T268) with 50 kAIC short-circuit current rating. Business Impact: Minimizes nuisance trips during motor start-ups and fault transients while safeguarding downstream equipment. Application: Motor control centers, drives-enabled panels, and power distribution sections in heavy industry. Feature: Voltage ratings of 690 Vac / 500 Vdc. Business Impact: Supports mixed AC and DC fault protection without swapping devices, increasing engineering flexibility. Application: Controls and power electronics assemblies with mixed voltage sources. Feature: Front-frame clamp connection and rocker lever. Business Impact: Facilitates faster, more secure installation and easier field testing or replacements. Application: New builds and retrofit projects needing quick SCADA-ready protection modules. Feature: UL Listed certification and Eaton warranty policy. Business Impact: Ensures compliance with safety standards and reduces procurement risk, with clear post-sale support. Application: Procurement for regulated facilities, OEMs, and systems integrators seeking reliable lifecycle support.
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FAQs
NZMN1-AF20-NA uses a front-frame clamp for secure mounting on the NZM1 frame. Installers should ensure compatible panel cutouts, adequate clearance for three-pole devices, and proper wiring arrangements to support 690 Vac operation. The rocker lever aids quick testing, and three-pole configurations help balance three-phase loads while minimizing phasing errors.
The device features a thermal-magnetic trip (T268) with a 50 kAIC short-circuit rating and a 20 A setting. This combination provides precise overload protection and fast interruption of high-energy faults, reducing the risk of equipment damage during motor starting, short circuits, or overload events.
Yes, the NZMN1-AF20-NA is UL Listed, confirming compliance with recognized safety standards for distribution circuit protection. Its rugged construction and 50 kAIC interrupt capability are designed to withstand demanding industrial environments, making it suitable for machine controls, switchgear, and control panels.
This model is built on the NZM1 frame with front-frame clamp mounting and a rocker lever for easy operation. It is compatible with three-pole installations and can be integrated into panelboards and distribution assemblies that require compact, code-compliant protection devices with straightforward field servicing.
Warranty follows Eaton policy 25-000, providing one year from installation or eighteen months from shipment, whichever comes first. This, combined with UL listing and Eaton’s service network, supports maintenance planning, spare part availability, and ROI through reduced downtime and reliable protection performance.