Eaton NZMH2-A32-NA MCCB - UL Listed 85-150kAIC
Part Number: NZMH2-A32-NA
Quick Summary
NZMH2-A32-NA is a molded case circuit breaker designed to protect distribution panels in industrial environments. This model addresses common pain points such as nuisance trips and difficult field adjustments by offering precise, user-adjustable trip settings. Key certifications include UL Listed safety compliance, backing a robust protection strategy for critical electrical systems. With a 32 A rating, 690 Vac and 750 Vdc capability, and an 85-150 kAIC interrupt range, it supports reliable protection across diverse production lines. Its compact NZM2 frame, three-pole configuration, and screw connections combine to streamline installation, replacement, and maintenance, delivering measurable business value through reduced downtime and improved protection coordination.
Product Information
Extended Description
NZMH2-A32-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMH2, Adjustable thermal, adjustable magnetic trip type, Three-pole, 32A, 690 Vac, 750 Vdc, 85-150 kAIC, Distribution circuit protection, Screw
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH2-A32-NA
EAN
4015082692308
Product Length/Depth
4.05 in
Product Height
7.24 in
Product Width
4.13 in
Product Weight
5.54 lb
Certifications
UL Listed
Amperage Rating
32 A
Voltage rating
690 Vac, 750 Vdc
Trip Type
Adjustable thermal, adjustable magnetic
Circuit breaker type
NZMH2
Frame
NZM2
Class
Distribution circuit protection
Interrupt rating
85-150 kAIC
Connection
Screw
Number of poles
Three-pole
Feature → Business Impact → Application: NZMH2-A32-NA uses adjustable thermal and magnetic trip to tailor protection to specific load profiles, reducing nuisance trips and enabling selective coordination across feeders in manufacturing cells. Result: smoother operation and fewer unexpected outages in high-demand lines. Application: distribution panels and machine-control enclosures where precise trip settings matter. Feature → Business Impact → Application: Three-pole design with NZM2 frame and screw connections delivers rugged, industry-standard installation in new builds or retrofit projects. Result: faster commissioning, easier wiring, and reliable long-term performance. Application: OEM panel builds and retrofit installs across industrial facilities. Feature → Business Impact → Application: 690 Vac / 750 Vdc voltage rating and 85-150 kAIC interrupt capacity provide robust fault-handling for mixed AC/DC systems and high-energy environments. Result: enhanced safety margins and reduced equipment damage during faults. Application: power distribution feeders, motor drives, and panel boards. Feature → Business Impact → Application: UL Listed certification supports regulatory compliance and simplifies documentation for audits and customer specifications. Result: smoother procurement and peace of mind for engineering teams. Application: quality-controlled assemblies and regulated industries requiring proven safety marks. Feature → Business Impact → Application: Compact dimensions (4.05 in depth, 7.24 in height, 4.13 in width) and 5.54 lb weight enable flexible enclosure layouts and easy replacement in crowded panels. Result: lower installation costs and easier maintenance. Application: retrofits, control panels, and space-constrained electrical rooms.
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FAQs
NZMH2-A32-NA uses a screw connection and three-pole configuration within the NZM2 frame. Plan for a compact footprint (4.05 in depth, 7.24 in height, 4.13 in width) and ensure adequate enclosure clearance. Verify torque and tighten connections to prevent loose-term risks, and align the breaker with neighboring devices to maintain proper heat dissipation and accessibility for maintenance.
Yes, NZMH2-A32-NA provides adjustable thermal and magnetic trip. Access the trip adjustment mechanism per the Eaton guidance in the datasheet, typically by rotating the trip dial to match the desired current threshold and coordination with upstream devices. Proper configuration delivers targeted protection without nuisance fault trips, improving uptime and protection selectivity.
The device is rated for 690 Vac and 750 Vdc and provides an interrupt rating range of 85-150 kAIC. This makes it suitable for distribution circuits that may encounter high-energy faults, enabling rapid interruption while protecting downstream equipment and wiring from excessive fault currents.
With the NZM2 frame and a screw-terminal connection, the NZMH2-A32-NA aligns with common panel standards and can replace legacy MCCBs where a three-pole, 32 A device is appropriate. Confirm enclosure footprint, mounting provisions, and upstream/downstream coordination to ensure seamless retrofit and consistent protection coverage.
Choosing the NZMH2-A32-NA enhances reliability through UL Listed safety, adjustable trip for precise protection coordination, and a robust 85-150 kAIC rating. Its compact form supports denser panel layouts, reducing space and wiring costs, while simplified maintenance and proven protection translate to lower downtime and improved return on investment.