Eaton NZMB2-A160 Molded Case Circuit Breaker - 25 kAIC
Part Number: NZMB2-A160
Quick Summary
NZMB2-A160 molded case circuit breaker from Eaton protects distribution panels with precise overcurrent protection. Engineers often wrestle with coordinating protection across panels, settings, and motor drives. In practice, you’ll find industry-standard reliability with fixed thermal and adjustable magnetic trip, a 960-1600 A delayed-trip range, and a 25 kAIC short-circuit capacity. While the exact certifications should be verified with Eaton, common industry listings such as UL and CE, along with appropriate enclosure IP ratings, are typical for products in this class. This device supports streamlined panel integration and scalable protection, offering a clear path to safer, more efficient distribution circuit protection in industrial environments.
Product Information
Extended Description
NZMB2-A160 Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMB2, Fixed thermal, adjustable magnetic trip, 960-1600A delayed trip rating, Three-pole, 160A, 600 Vac, 25 kAIC, Distribution circuit protection, 125-160A, 125-160A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMB2-A160
EAN
4015082590888
Product Length/Depth
5.9 in
Product Height
7.2 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
600 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
Overload range
125-160A
Number of poles
Three-pole
Trip rating
960-1600 A delayed
Feature 1: Three-pole NZMB2 with NZM2 frame delivering 160 A at 600 Vac. Business Impact: Enables robust three-phase protection for standard industrial loads while maintaining compact form factor. Application: Ideal for distribution panels and motor control centers requiring reliable three-pole protection with easy integration. Feature 2: Fixed thermal, adjustable magnetic trip with 125-160 A setting range. Business Impact: Allows precise tailoring of protection to load characteristics, reducing nuisance trips and improving reliability. Application: Panelboard protection where load profiles vary and selective coordination is needed across feeders. Feature 3: Delayed-trip rating 960-1600 A and 25 kAIC short-circuit capacity. Business Impact: Improves fault tolerance in high fault-current environments, supporting upstream protection coordination. Application: Large motor feeders and critical distribution circuits in manufacturing facilities. Feature 4: Accessories including rocker lever and motor drive. Business Impact: Enhances installation ergonomics and remote/motor-driven operation, accelerating commissioning. Application: Field retrofit and new installations where quick actuation and control are valuable. Feature 5: Compact dimensions (5.9 in L × 7.2 in H × 4.1 in W) and weight about 4.1 lb. Business Impact: Simplifies panel integration, reduces enclosure depth, and lowers shipping/handling costs. Application: Space-constrained switchgear, compact service panels, and retrofit projects. Feature 6: Class and rating alignment with distribution circuit protection. Business Impact: Supports compliant, predictable protection schemes with clear device role in a broader protection strategy. Application: Industrial distribution networks needing consistent device classification and performance.
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FAQs
The NZMB2-A160 uses the NZM2 frame and is a three-pole device sized for standard panelboard fit. Plan for 5.9 in depth, 7.2 in height, and 4.1 in width, with appropriate clearance for the fixed thermal and adjustable magnetic trip. Use the rocker lever or motor drive accessories if motor-control integration is required.
Amperage rating is 160 A with a voltage rating of 600 Vac. It features a short-circuit breaking capacity of 25 kAIC and a trip type of T185, with a setting range of 125-160 A to support selective coordination in protection schemes.
Yes. The device is designed for distribution circuit protection with a three-pole configuration on the NZM2 frame, offering reliable overcurrent protection for panelboards and motor feeders in manufacturing and process environments.
Typical industry certifications for this class include UL listings and CE markings, along with appropriate enclosure IP ratings. Confirm the exact certifications with Eaton to ensure compliance with local standards and project requirements.
Warranty follows Eaton policy: one year from installation or eighteen months from shipment, whichever occurs first. For ongoing reliability, refer to Eaton’s specification sheet and availability of accessories, and schedule periodic checks of trip settings and contact integrity.