Eaton NZMB2-AF60-BT-NA Molded Case Breaker - 25 kAIC
Part Number: NZMB2-AF60-BT-NA
Quick Summary
NZMB2-AF60-BT-NA protects industrial power distribution with reliable overcurrent protection. For controls and feeders with variable loads, nuisance trips can disrupt productivity; this breaker balances fast response and selectivity to minimize unplanned downtime. Compliances: Contact Manufacturer for the latest approvals—this product aligns with Eaton’s standards and is intended for distribution circuits in commercial and light-industrial panels. The NZM2 frame with front-frame clamp enables straightforward installation in compact panel layouts, supporting faster commissioning and easier maintenance. With a 60 A rating at 440 Vac and a 25 kAIC interrupt capacity, this unit delivers dependable protection that scales with growing automation projects while helping control total cost of ownership.
Product Information
Extended Description
NZMB2-AF60-BT-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMB2, Fixed thermal, adjustable magnetic trip, Three-pole, 60A, 440 Vac, 25 kAIC, Box, Distribution circuit protection, 60-60A, 380-630A delayed, Front frame clamp, 60-60A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMB2-AF60-BT-NA
EAN
4015081072859
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
60 A
Voltage rating
440 Vac
Trip Type
T185
Circuit breaker type
NZMB2
Terminals
Box
Frame
NZM2
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Adjustment range short-circuit release
380-630A delayed
Setting Range Ol Protector
60-60A
Short-circuit breaking capacity
25 kAIC
Interrupt rating
25 kAIC
Connection
Front frame clamp
Overload range
60-60A
Number of poles
Three-pole
Feature: Three-pole NZMB2 circuit breaker in the NZM2 family provides robust three‑phase protection for distribution feeders. Business impact: This topology reduces the risk of damaging overcurrents and supports improved system reliability in daily operation. Application: Ideal for panel boards and switchgear in commercial and light‑industrial environments where downtime is costly. Feature: Fixed thermal with adjustable magnetic trip (T185) and a 380–630 A delayed setting range. Business impact: Delivers precise protection coordination, preventing nuisance trips during startup surges while ensuring fast fault clearance. Application: Suitable for motors, drives, and feeders with fluctuating load profiles in automation projects. Feature: Short-circuit breaking capacity and interrupt rating of 25 kAIC. Business impact: Higher fault current handling improves safety margins and reduces arc exposure during faults. Application: Critical in large distributed circuits and equipment protection in manufacturing facilities. Feature: Front-frame clamp terminals and box connection. Business impact: Simplifies wiring, speeds up installation, and minimizes terminal misconnection. Application: Preferred choice for panel builders, retrofit work, and compact installation spaces. Feature: Accessories including rocker lever and motor drive compatibility. Business impact: Enhances operability and control integration, enabling easier maintenance and remote monitoring. Application: Motor control centers, control panels, and automated lines. Feature: Compact footprint and NZM2 frame compatibility streamline panel integration. Business impact: Space savings and simplified stocking support faster deployment and easier future upgrades. Application: Suitable for scalable protection in distributed power networks and new builds. Warranty note: Eaton provides a one-year warranty from installation or 18 months from shipment.
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FAQs
NZMB2-AF60-BT-NA is designed for installation in distribution panels and switchgear using the NZM2 frame. It features front-frame clamp terminals for quick wiring and a three-pole configuration suitable for three-phase systems. When retrofitting, ensure the panel supports NZM2 family breakers and verify space for a 4.13 in width and 7.24 in height footprint.
The breaker includes a fixed thermal trip with an adjustable magnetic trip (T185) and a delayed 380–630 A range. This enables precise fault detection and selectivity, reducing nuisance trips during startup while guaranteeing rapid shutdown under short-circuit conditions, which is crucial for motors and drives on dynamic load profiles.
Key ratings are 60 A, 440 Vac, and 25 kAIC interrupt capacity. These specifications define how much current the device can safely carry, the voltage it protects, and the maximum fault current it can interrupt. They matter for protecting distribution feeders, motors, and equipment in industrial and commercial facilities against overloads and short circuits.
The NZMB2-AF60-BT-NA includes front-frame clamp terminals and is compatible with rocker lever and motor drive accessories. These features shorten installation time, reduce wiring errors, and support straightforward commissioning in compact control panels and retrofit projects.
Eaton backs the NZMB2-AF60-BT-NA with a one-year warranty from installation or eighteen months from shipment, whichever comes first. For compliance details and updates to approvals, consult Eaton's support to confirm current certifications and regional requirements before deployment.