Eaton NZMB2-A160-NA Molded Case Circuit Breaker - 25 kAIC
Part Number: NZMB2-A160-NA
Quick Summary
NZMB2-A160-NA molded case circuit breaker protects 3-phase distribution systems up to 440 VAC. This model helps prevent unexpected downtime by delivering precise overload and short-circuit protection for industrial panels. While the data sheet highlights performance specs like a 25 kAIC interrupt rating and 125–160 A setting range, ensure compliance details (CE, IP, SIL) are confirmed with Eaton. The NZM2 frame design supports reliable protection in tough environments, and front screw termination simplifies mounting and field wiring. With these capabilities, you gain improved protection, faster commissioning, and reduced total cost of ownership for medium- to large-scale distribution applications.
Product Information
Extended Description
NZMB2-A160-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMB2, Fixed thermal, adjustable magnetic trip, 960-1600A delayed, Three-pole, 160A, 440 Vac, 25 kAIC, Distribution circuit protection, 125-160A, Front screw, 125-160A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMB2-A160-NA
EAN
4015082692155
Product Length/Depth
5.9 in
Product Height
7.7 in
Product Width
4.1 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
160 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
125-160A
Short-circuit breaking capacity
25 kAIC
Interrupt rating
25 kAIC
Connection
Front screw
Overload range
125-160A
Number of poles
Three-pole
Trip rating
960-1600 A delayed
Feature → Business Impact → Application: 25 kAIC short-circuit rating provides robust fault current handling, reducing the risk of equipment damage and downtime in high-demand industrial lines. This translates to higher line availability for manufacturing cells and conveyor systems, especially in spaces with high fault-current potential. Feature → Application: 125-160 A overload setting with fixed thermal, adjustable magnetic trip (T185) enables precise coordination with motor loads and bussing schemes; improves protection selectivity while minimizing nuisance trips in dynamic load profiles. Feature → Application: Three-pole, front screw connection and NZMB2/NZM2 frame compatibility streamline installation in existing panels and new builds, lowering commissioning time and labor costs for electrical contractors. Feature → Application: Included accessories such as rocker lever and motor drive option extend control flexibility for remote operation and automated maintenance routines. Feature → Application: 960-1600 A delayed trip rating supports industrial distribution protection against occurring transients, enabling smoother startup sequences and safer motor starting in packaging, material handling, and process lines. Feature → Application: Durable construction and Eaton warranty support (25-000 policy) provide long-term reliability and predictable service costs, aiding total cost of ownership considerations in compliance-driven projects. Long-tail keywords integrated: molded case circuit breaker NZMB2-A160-NA, Eaton NZM2 frame MCCB, 160 A distribution protection, 440 VAC MCCB, 25 kAIC interrupt capacity, front screw MCCB, motor drive compatible breaker.
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FAQs
NZMB2-A160-NA uses a front screw connection and NZM2 frame design, enabling straightforward retrofits into existing distributions. Its 5.9 in depth, 7.7 in height, and 4.1 in width simplify enclosure planning while reducing wiring complexity during field installation.
Key specs include a 160 A amperage rating, 440 VAC voltage rating, 25 kAIC short-circuit breaking capacity, and a 125–160 A overload setting range with fixed thermal and adjustable magnetic trip (T185), suitable for demanding distribution circuits.
Yes. The three-pole design, 160 A rating, and NZMB2/NZM2 frame compatibility make it ideal for three-phase protections in industrial panels and motor-driven load centers, delivering reliable overload and fault protection with easy integration into motor control schemes.
The datasheet notes Compliances as 'Contact Manufacturer,' so verify CE, IP, and SIL statuses with Eaton for your specific region and application. In practice, ensure the device meets local electrical safety and enclosure protection requirements before deployment.
Eaton provides a warranty per policy 25-000 (one year from installation or 18 months from shipment, whichever occurs first). For maintenance, rely on standard MCCB service practices plus periodic inspection of torque on front screws and trip performance verification per site procedures.