Eaton NZMB1-AF100-NA Molded Case Breaker - 25 kAIC
Part Number: NZMB1-AF100-NA
Quick Summary
The Eaton NZMB1-AF100-NA molded case breaker protects distribution circuits in industrial electrical systems. Operators often struggle to select a device that fits compact panels while delivering reliable overcurrent protection. Compliance considerations typically center on CE, UL/CSA, and IP ratings—verify with Eaton for this model. This solution supports 100 A at 480 Vac with a 25 kAIC rating, and its front-frame clamp simplifies field mounting, reducing commissioning time. By aligning with these specifications, your power distribution remains resilient, and maintenance intervals shorten, boosting uptime and overall plant productivity.
Product Information
Extended Description
NZMB1-AF100-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM1-frame, NZMB1, Thermal-magnetic trip, 600-1000A trip rating, Three-pole, 100A, 480 Vac, 25 kAIC, Distribution circuit protection, 100-100A, Front frame clamp, 100-100A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMB1-AF100-NA
EAN
4015082722524
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
100 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
100-100A
Short-circuit breaking capacity
25 kAIC
Interrupt rating
25 kAIC
Connection
Front frame clamp
Overload range
100-100A
Number of poles
Three-pole
Trip rating
600-1000 A
Feature → Business Impact → Application: The NZMB1-AF100-NA is a three-pole distribution circuit protector rated at 100 A and 480 Vac, with a 25 kAIC short-circuit rating. This combination delivers reliable protection for motor drives and process loads, reducing the risk of costly outages in manufacturing lines and utility panels. Application-wise, the device is well-suited for panelboards inside industrial facilities where compact footprint and robust fault clearing are critical to keeping production lines running smoothly. Feature → Business Impact → Application: Thermal-magnetic trip (T268) provides accurate overload and short-circuit protection, minimizing nuisance trips while preserving equipment life; this is essential for critical processes in food & beverage, chemical, and automotive environments. Feature → Business Impact → Application: Front-frame clamp mounting and a compact NZM1 frame offer straightforward installation in crowded switchgear, improving commissioning speed and reducing field labor costs. Feature → Business Impact → Application: Rocker lever accessory enhances operability and field adjustability, lowering maintenance time during routine inspections and reloads. Feature → Business Impact → Application: The 2.68 in depth, 3.54 in width, and 5.71 in height footprint supports space-constrained enclosures, enabling higher panel density and better overall system reliability.
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FAQs
For panelboard installation, use the front-frame clamp mounting designed for EZ access and quick servicing. The unit fits within the NZM1 frame footprint and matches standard distribution enclosures. Dimensions are 2.68 in depth, 3.54 in width, and 5.71 in height, with a 100 A rating and 480 Vac operation. Ensure clearance for actuation and lever access during maintenance.
The device is a three-pole molded case breaker rated at 100 A and 480 Vac, with a short-circuit breaking capacity of 25 kAIC. It utilizes a thermal-magnetic trip (T268) for overload and short-circuit protection and belongs to the NZMB1 family within the NZM1 frame series, offering distribution circuit protection for industrial panels.
Yes. Its three-pole configuration, 100 A rating, 480 Vac voltage, and 25 kAIC short-circuit capacity make it well-suited for protecting distribution circuits in factories, water treatment, and process plants. The device is engineered for reliable operation in demanding environments and integrates with front-frame mounting to simplify panel integration.
A rocker lever is listed as an accessory for the NZMB1-AF100-NA, improving manual operation and field adjustments. This accessory supports easier latching and testing during commissioning and routine maintenance, contributing to faster service intervals and reduced downtime in high-availability applications.
Warranty follows Eaton’s policy: one year from installation or eighteen months from shipment, whichever occurs first. Compliance status requires contacting the manufacturer for definitive certifications. When selecting for regulated facilities, verify CE, UL/CSA, IP ratings, and any region-specific approvals as part of the procurement process.