Eaton NZMB1-AF35-NA NZM MCCB - 25 kAIC
Part Number: NZMB1-AF35-NA
Quick Summary
NZMB1-AF35-NA is a complete molded case circuit breaker for industrial power distribution, delivering reliable protection in control panels and main distribution boards. Engineers often struggle with nuisance trips and space-constrained installations, which this device helps mitigate through precise thermal-magnetic protection and a compact footprint. The NZMB1-AF35-NA sits within Eaton’s NZM1 frame family, aligning with common industry standards and installation practices. While the manufacturer provides compliance details upon request, this unit is built to meet rigorous performance requirements for 480 Vac systems and 25 kAIC fault interruptions. For value-driven projects, it combines robust protection with straightforward servicing and predictable lifecycle costs.
Product Information
Extended Description
NZMB1-AF35-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM1-frame, NZMB1, Thermal-magnetic trip type, 320-400A trip rating, Three-pole, 35A, 480 Vac, 25 kAIC, Distribution circuit protection, Rocker lever, 35-35A, Front frame clamp, 35-35A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMB1-AF35-NA
EAN
4015082722043
Product Length/Depth
2.68 in
Product Height
5.71 in
Product Width
3.54 in
Product Weight
2.45 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
480 Vac
Trip Type
T268
Circuit breaker type
NZMB1
Frame
NZM1
Class
Distribution circuit protection
Accessories
Rocker lever
Setting Range Ol Protector
35-35A
Short-circuit breaking capacity
25 kAIC
Interrupt rating
25 kAIC
Connection
Front frame clamp
Overload range
35-35A
Number of poles
Three-pole
Trip rating
320-400 A
Feature → Business Impact → Application: The NZMB1-AF35-NA employs a thermal-magnetic trip (T268) that provides accurate overload protection, reducing nuisance trips and extending motor and equipment life in demanding automation lines. This translates to lower downtime and improved throughput on production lines where 35 A nominal protection is required alongside a 320-400 A trip range for fault events. Application: distribution panels in manufacturing and process facilities requiring dependable short-circuit clearing up to 25 kAIC at 480 Vac. Feature → Business Impact → Application: Front frame clamp connection and a rocker lever enable faster, tool-free installation and intuitive manual operation, cutting assembly time by a measurable margin and improving maintenance efficiency in panel upgrades. Application: retrofit projects and new builds with frequent cabinet reconfigurations. Feature → Business Impact → Application: NZM1 framework compatibility and a compact 2.68 in depth, 5.71 in height, and 3.54 in width profile support dense panel layouts, optimizing space while preserving accessibility for testing and resetting. Application: space-constrained electrical enclosures in compact machines. Feature → Business Impact → Application: 25 kAIC interrupt rating and 25 kAIC short-circuit capacity deliver proven fault clearance for critical loads, enabling safer de-energization and reduced arc exposure. Application: critical circuits feeding motors, transformers, and process equipment. Feature → Business Impact → Application: Fixed 35 A setting and 35-35A overload range simplify coordination with upstream protection, enabling predictable trip behavior and easier protection coordination studies in medium-power distribution schemes. Application: industrial control panels and motor starter ensembles. Feature → Business Impact → Application: The lightweight, 2-pole-to-3-pole assembly with three poles improves scalability for multi-mircuit protection, streamlining procurement and stock-keeping. Application: multi-circuit panel sections and compact switchgear assemblies. The combination of these features supports a predictable total cost of ownership by reducing spare-part needs, accelerating installation, and ensuring consistent protection performance across environments.
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FAQs
Yes. The NZMB1-AF35-NA is built on the NZM1 frame and uses a front frame clamp connection with a rocker lever, enabling straightforward mounting in NZM1-based panels. This simplifies retrofits and new installations, reduces mounting time, and ensures consistent alignment with other NZM family devices.
The device features a thermal-magnetic trip type T268 with an amperage rating of 35 A. It provides a trip range of 320-400 A and a short-circuit breaking capacity of 25 kAIC, allowing reliable fault clearing while protecting downstream equipment in 480 Vac systems.
Mounting is via a front frame clamp with a rocker lever for easy operation. The unit is three-pole, part of the NZM1 frame family, and is designed for 480 Vac distribution circuits. Its compact dimensions (2.68 in depth, 5.71 in height, 3.54 in width) support dense panel layouts.
Warranty is Eaton’s standard policy: one year from installation or 18 months from shipment, whichever occurs first. Compliance details are provided by the manufacturer; this product is designed for industrial protection applications and conforms to Eaton’s NZM1 family expectations, with confirmation required for specific regulatory certifications.
By combining a compact footprint, straightforward installation, and reliable 25 kAIC fault interruption at 480 Vac, the unit reduces installation time, minimizes downtime due to nuisance trips, and lowers maintenance costs. The front frame clamp and rocker lever enhance ergonomics and serviceability, supporting longer service intervals and predictable protection for critical loads.