Eaton NZMB2-AF150-NA NZM MCCB - 25 kAIC
Part Number: NZMB2-AF150-NA
Quick Summary
NZMB2-AF150-NA molded case circuit breaker protects distribution panels in industrial automation applications. This unit addresses nuisance trips and downtime by combining fixed thermal and adjustable magnetic trip settings for reliable protection across varying loads. While explicit CE, SIL, or IP ratings aren’t listed—consult Eaton for certification details—the device delivers robust 150 A at 440 Vac with a 25 kAIC fault interrupt capacity, designed for tough distribution circuits. Its front-screw connections and available motor-drive accessory options streamline installation and maintenance, delivering measurable business value in terms of uptime, safety, and lifecycle cost reduction. For panel builders and maintenance teams, this means predictable protection with less rework and faster commissioning.
Product Information
Extended Description
NZMB2-AF150-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMB2, Fixed thermal, adjustable magnetic trip, 960-1600A delayed, Three-pole, 150A, 440 Vac, 25 kAIC, Distribution circuit protection, 150-150A, Front screw, 150-150A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMB2-AF150-NA
EAN
4015082691677
Product Length/Depth
5.51 in
Product Height
5.86 in
Product Width
5.86 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
150 A
Voltage rating
440 Vac
Trip Type
T185
Circuit breaker type
NZMB2
Frame
NZM2
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Setting Range Ol Protector
150-150A
Short-circuit breaking capacity
25 kAIC
Interrupt rating
25 kAIC
Connection
Front screw
Overload range
150-150A
Number of poles
Three-pole
Trip rating
960-1600 A delayed
Feature → Business Impact → Application: 150 A amperage rating paired with 440 Vac operation delivers solid protection for medium-size distribution circuits, reducing overcurrent risk in industrial panels and machinery lines. This translates to fewer unplanned shutdowns and smoother production runs, especially in automation-heavy environments. Application: factory distribution panels and process lines. Feature → Business Impact → Application: Fixed thermal with adjustable magnetic trip (T185) enables precise coordination with motor loads and gear-driven equipment, lowering nuisance trips while preserving short-circuit protection. Application: motor control centers and line-start applications. Feature → Business Impact → Application: Short-circuit breaking capacity of 25 kAIC and 25 kA interrupt rating provides robust fault handling for high-inertia loads, protecting downstream equipment and wires from arc faults. Application: packaging, metalworking, and material handling lines. Feature → Business Impact → Application: NZMB2 frame with front screw termination and compact dimensions simplifies installation in tight panel spaces, reducing assembly time and improving maintenance access. Application: control cabinets and switchgear assemblies. Feature → Business Impact → Application: Accessories including rocker lever and motor-drive option enable quick upgrades and remote control capabilities, improving automation flexibility and retrofit ease. Application: retrofits and new installations. Feature → Business Impact → Application: 150-150 A setting range and 960-1600 A delayed trip rating support precise overload protection and staged fault response, enhancing system reliability. Application: continuous process lines and cold-formed metal fabrication cells.
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FAQs
Yes. The NZMB2-AF150-NA features front screw termination for straightforward installation in panelboards. It also lists rocker lever and motor-drive accessories, enabling easy upgrades and remote control integration without replacing the entire MCCB. This reduces commissioning time and simplifies maintenance in automated lines.
The device is a 150 A, 440 Vac three-pole molded case circuit breaker with a 25 kAIC short-circuit rating and a T185 trip type. These specifications enable reliable protection for distribution circuits and motor loads, while offering adjustable magnetic trip to tailor protection to specific equipment and startup currents.
Yes. With a 150 A rating, 440 Vac operating voltage, robust fault interruption, and a three-pole configuration, this breaker is well-suited for distributed control and power distribution in manufacturing floors, packaging lines, and other automation-heavy environments where dependable protection and quick fault clearance matter.
Explicit CE, SIL, and IP certifications aren’t listed in the provided data. For regulatory compliance, consult Eaton’s official datasheet or contact the manufacturer to confirm current certifications and any regional adaptations required for your installation.
The warranty follows Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever comes first. This aligns with typical industry practice for electrical protection devices and supports predictable maintenance budgeting.