Eaton NZMH2-4-A160 Molded Case Circuit Breaker - 150 kAIC
Part Number: NZMH2-4-A160
Quick Summary
Eaton NZMH2-4-A160 is a complete molded case circuit breaker designed for distribution protection in industrial electrical systems. Engineers often struggle to balance precise protection settings with reliable startup, especially in high-demand 690 Vac / 750 Vdc networks. Compliance information is provided by the manufacturer, with a one-year warranty policy and adjustable thermal and magnetic trip for tailored protection in panel boards. This device supports flexible coordination, easy installation, and long-term reliability, delivering value in modern industrial control architectures. Partners can rely on compatibility with front-access mounting and optional accessories to optimize motor drives and control schemes.
Product Information
Extended Description
NZMH2-4-A160 Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMH2, adj. thermal, adj. magnetic trip, 960-1600A delayed, Four-pole, 160A, 690 Vac, 750 Vdc, 85-150 kAIC, Distribution circuit protection, 125-160A, Front screw, 125-160A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH2-4-A160
EAN
4015082658717
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
160 A
Voltage rating
690 Vac, 750 Vdc
Trip Type
Adjustable thermal, adjustable magnetic
Circuit breaker type
NZMH2
Frame
NZM2
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Setting Range Ol Protector
125-160A
Short-circuit breaking capacity
150 kAIC
Interrupt rating
85-150 kAIC
Connection
Front screw
Overload range
125-160A
Number of poles
Four-pole
Trip rating
960-1600 A delayed
NZMH2-4-A160 is a four-pole NMZ2-frame molded case circuit breaker designed for robust distribution protection in industrial panels. Feature: Adjustable thermal and magnetic trip enables precise protection tailored to load profiles and startup surges, delivering improved uptime and reduced nuisance tripping in manufacturing lines. Benefit: Safer, more predictable protective coordination reduces downtime costs and extends equipment life in demanding environments. Application: Main distribution boards, feeder panels, and motor control centers requiring reliable fault isolation. Feature: 160 A amperage rating with a 690 Vac / 750 Vdc voltage rating offers cross-application compatibility across AC and DC networks. Benefit: Streamlined procurement and installation with a single protective device for mixed-voltage systems. Application: Industrial power distribution and panel retrofit projects. Feature: Short-circuit breaking capacity of 150 kAIC provides strong fault tolerance during faults, minimizing busbar and conductor damage. Benefit: Enhanced system resilience and uptime in high-current fault scenarios. Application: Heavy-duty feeders and multi-motor starts. Feature: Front screw connections simplify installation, replacement, and front-access servicing. Benefit: Reduced labor time and safer maintenance in crowded electrical enclosures. Application: Retrofit projects and new builds where quick changeouts are common. Feature: Accessories such as rocker lever and motor drive support improve operation and automation integration. Benefit: Better control ergonomics and seamless motor-driven protection alignment. Application: PLC-controlled motor circuits and automated protection schemes. Feature: Four-pole protection with a clear setting range of 125-160 A. Benefit: Flexible coordination for multi-phase systems and ease of match to load requirements. Application: Complex distribution schemes in manufacturing facilities. Feature: Warranty coverage under Eaton policy with documented installation and service expectations. Benefit: Lower long-term ownership costs and predictable maintenance planning. Application: Enterprise-level procurement and service contracts.
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FAQs
Yes. The NZMH2-4-A160 uses front screw connections, which simplifies mounting, replacement, and service in existing and new switchboards. Four-pole construction and NZM2 frame ensure consistent fitment with standard distribution enclosures, reducing retrofit complexity and downtime during panel upgrades.
The device features an adjustable thermal and magnetic trip with a setting range of 125–160 A. This enables tailored protection to match load profiles and startup transients, improving selectivity and reducing nuisance trips while maintaining safety margins for critical loads.
Yes. With four-pole protection, adjustable trip, and a 150 kAIC short-circuit capacity, the NZMH2-4-A160 is well-suited for motor feeder circuits and motor control centers. Its robust fault current handling and front-access installation support safe, reliable motor protection in demanding manufacturing environments.
Compliance details are provided by the manufacturer, and the product is covered under Eaton’s warranty policy (one year from installation or 18 months from shipment, whichever occurs first). For definitive regulatory markings (CE/SIL/IP), consult Eaton documentation or contact the manufacturer to confirm applicable certifications for your region.
By integrating adjustable protection, high fault-current capacity, and front-screw installation, the NZMH2-4-A160 reduces commissioning time, lowers maintenance labor, and minimizes downtime from nuisance trips. Its compatibility with optional rocker lever and motor drive accessories further enhances automation readiness, delivering predictable ROI in panel retrofits and new builds.