Eaton NZMB2-AF35-NA Molded Case Circuit Breaker - 25 kAIC
Part Number: NZMB2-AF35-NA
Quick Summary
NZMB2-AF35-NA molded case circuit breaker provides reliable distribution protection for industrial panels. This device helps prevent nuisance trips and simplifies protection coordination by combining fixed thermal with adjustable magnetic trip, supporting precise fault handling in demanding environments. In practice, certifications and compliance vary by region; typical critical certifications for MCCBs include CE marking, UL listings, and IP-rated enclosures—check Eaton guidance for your locale. By leveraging the NZM2 frame and front-screw mounting, it delivers scalable protection with straightforward installation, enabling engineers to optimize panel space, simplify spare parts planning, and reduce downtime across distribution networks.
Product Information
Extended Description
NZMB2-AF35-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMB2, Fixed thermal, adjustable magnetic trip, Three-pole, 35A, 440 Vac, 25 kAIC, Distribution circuit protection, 35-35A, 320-400A delayed, Front screw, 35-35A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMB2-AF35-NA
EAN
4015082691462
Product Length/Depth
4.05 in
Product Height
7.24 in
Product Width
4.13 in
Product Weight
5.17 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
35 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
320-400A delayed
Setting Range Ol Protector
35-35A
Short-circuit breaking capacity
25 kAIC
Interrupt rating
25 kAIC
Connection
Front screw
Overload range
35-35A
Number of poles
Three-pole
Compact circuit-breakers and switch-disconnectors up to 1600 A
Eaton Specification Sheet - NZMB2-AF35-NA
Feature is a three-pole NZMB2 with a fixed thermal and adjustable magnetic trip (T185) that enables precise protection coordination. Business impact is reduced nuisance trips and improved selectivity, allowing safer, more reliable power distribution in complex feeders. This applies to industrial panels and motor control centers where uptime matters. Feature highlights the 25 kAIC short-circuit breaking capacity at 440 Vac, providing robust fault interruption for high-energy faults, which translates to greater equipment protection and safer maintenance windows. Application-wise, the NZMB2-AF35-NA fits the NZM2 frame with front screw connections, offering compact installation in crowded switchgear and easier retrofits in existing cabinets. The adjustable short-circuit release range from 320 to 400 A supports deliberate coordination with upstream protection, minimizing system-wide outages. Accessories such as a rocker lever and motor drive improve control integration and ergonomic operation during commissioning and routine testing. Comprehensive protection is backed by Eaton’s warranty policy, helping maintenance teams plan for long-term reliability and cost containment in procurement and service.
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FAQs
When installing the NZMB2-AF35-NA, ensure front-screw terminals are accessible for wiring and torque compliance. The three-pole design fits the NZM2 frame, enabling compact panel layouts. Verify clearance for trip-operation and allow space for future accessories such as a rocker lever or motor drive to ease commissioning and maintenance.
Key specs include a 35 A current rating, 440 Vac voltage rating, and a short-circuit breaking capacity of 25 kAIC. The trip type is T185 with fixed thermal and adjustable magnetic characteristics, and it supports delayed protection in the 320–400 A range. It is a three-pole MCCB built on the NZM2 frame with front-screw connections.
Yes, the NZMB2-AF35-NA is designed for distribution panels and motor control centers where reliable protection is required. Its adjustable magnetic trip supports coordination with motor protection schemes, and the accessory options—such as a rocker lever and motor drive—facilitate seamless motor control integration and safe startup sequencing.
Compliance details are region-specific and often involve CE, UL, or IEC standards. The data for this model lists Compliances as ‘Contact Manufacturer,’ so confirm with Eaton for your market. Ensure the unit meets your local electrical safety and installation requirements before deployment, and verify enclosure IP ratings and environmental specs if applicable.
The NZMB2-AF35-NA offers robust protection with a 25 kAIC interrupt rating, reducing fault-related downtime and extending equipment life. Its modular NZM2 frame and accessible front-screw terminals shorten installation and maintenance windows, lowering labor costs. The availability of accessories supports longer service intervals and smoother scalability for future expansion.