Eaton NZMB2-AF80-NA Molded Case Circuit Breaker - 25 kAIC
Part Number: NZMB2-AF80-NA
Quick Summary
Eaton NZM complete molded case circuit breaker is designed to protect distribution circuits in industrial panels. Panel designers often face nuisance trips, limited coordination options, and space constraints that slow integration of protection devices. Certification details should be confirmed with Eaton; however, molded case breakers in this family commonly align with CE, UL/IEC standards for industrial protection across global markets. With an 80 A rating at 440 Vac and a 25 kAIC interrupt capacity, NZMB2-AF80-NA delivers reliable distribution circuit protection while supporting compact panel layouts and straightforward maintenance. This combination enables safer, more dependable power distribution for motor control centers, general control panels, and other critical infrastructure.
Product Information
Extended Description
NZMB2-AF80-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMB2, Fixed thermal, adjustable magnetic trip, Three-pole, 80A, 440 Vac, 25 kAIC, Distribution circuit protection, 80-80A, 480-800A delayed, Front screw, 80-80A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMB2-AF80-NA
EAN
4015082691622
Product Length/Depth
4.05 in
Product Height
7.24 in
Product Width
4.13 in
Product Weight
4.1 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
Amperage Rating
80 A
Voltage rating
440 Vac
Trip Type
T185
Circuit breaker type
NZMB2
Frame
NZM2
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Adjustment range short-circuit release
480-800A delayed
Setting Range Ol Protector
80-80A
Short-circuit breaking capacity
25 kAIC
Interrupt rating
25 kAIC
Connection
Front screw
Overload range
80-80A
Number of poles
Three-pole
Feature: NZMB2-AF80-NA uses the NZM2 frame with a three-pole design rated at 80 A. Business Impact: This enables robust distribution circuit protection while maintaining clear upstream/downstream coordination within compact panel footprints. Application: Ideal for distribution boards and motor control centers in industrial facilities. Feature: Fixed thermal with adjustable magnetic trip (T185) provides precise protection. Business Impact: Enables selective tripping and reliable coordination with downstream devices, reducing nuisance trips and downtime. Application: Feeder protection and motor circuits in control panels. Feature: 25 kAIC short-circuit rating with an 80-80 A setting range and front screw connections supports quick, dependable fault handling. Business Impact: Improves fault clearance reliability and ease of commissioning in tight electrical spaces. Application: Panel boards and MCCs requiring high fault current resilience. Feature: Accessories including rocker lever and motor drive option enhance operability. Business Impact: Speeds up commissioning, simplifies maintenance, and improves control ergonomics. Application: Industrial control panels and motor-start sequences. Feature: Compact footprint and weight—4.05 in depth, 4.13 in width, 7.24 in height, 4.1 lb. Business Impact: Space-saving installation without compromising protection performance. Application: New builds and retrofit upgrades where enclosure real estate is at a premium. Warranty information: 1-year from installation or 18 months from shipment, per Eaton policy.
Get a Quick Quote for a Eaton NZMB2-AF80-NA
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton NZMB2-AF80-NA?
Enquire Now
FAQs
For a clean installation, plan for a front-screw connection as specified, ensure compatible NZM2 frame mounting, and verify the 4.05 in depth by 7.24 in height footprint fits your enclosure. Use the rocker lever or motor drive accessories to optimize operator ergonomics during commissioning. Coordinate trip settings with downstream devices to avoid nuisance trips in motor circuits.
The 25 kAIC interrupt capacity means the breaker can safely interrupt high fault currents typical in industrial feeders and MCCs. This reduces the risk of overheating or damage to upstream devices and wiring, supports robust short-circuit protection, and helps maintain continuity for critical loads during fault events.
Yes. NZMB2-AF80-NA is designed around the NZM2 frame and employs front screw terminals, ensuring straightforward installation in compatible panels. The three-pole configuration aligns with standard distribution protection schemes, enabling reliable coordination with upstream protective devices and simple field retrofits.
This breaker features fixed thermal protection with an adjustable magnetic trip (T185), allowing precise coordination with motor control and feeders. The adjustable magnetic setting helps tailor short-circuit response to the specific motor load, reducing nuisance trips during startup transients while preserving rapid fault clearing when faults occur.
The 80 A, 440 Vac, and 25 kAIC ratings deliver reliable protection with long service life, minimizing unplanned downtime. The device’s compact footprint reduces enclosure costs, while the available accessories simplify commissioning and maintenance. The warranty follows Eaton’s policy (1 year from installation or 18 months from shipment), supporting a straightforward maintenance plan.