Eaton NZMH2-A63-BT-NA Molded Case Breaker - UL Listed
Part Number: NZMH2-A63-BT-NA
Quick Summary
NZMH2-A63-BT-NA molded case breaker provides precise overcurrent protection for industrial distributions. Engineers often struggle with nuisance trips or drift in trip settings, which can disrupt production and extend commissioning times; this model offers an adjustable thermal and magnetic trip to precisely match electrical loads. UL Listed certification signals safety and compliance with recognized standards, while the NZM2 frame supports compact, consistent installation across Eaton panel solutions. In practical terms, this device reduces downtime, improves protection coordination, and simplifies spare parts planning. For panel builders and maintenance teams, the combination of settable trip ranges and reliable performance translates to lower total cost of ownership and smoother long-term operation.
Product Information
Extended Description
NZMH2-A63-BT-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMH2, Adj. thermal, adj. magnetic trip, Three-pole, 63A, 690 Vac, 750 Vdc, 85-150 kAIC, Box, Distribution circuit protect., 50-63A, Front frame clamp, 50-63A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH2-A63-BT-NA
EAN
4015081074495
Product Length/Depth
4.05 in
Product Height
7.24 in
Product Width
4.13 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
Certifications
UL Listed
Amperage Rating
63 A
Voltage rating
690 Vac, 750 Vdc
Trip Type
Adjustable thermal, adjustable magnetic
Circuit breaker type
NZMH2
Terminals
Box
Frame
NZM2
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Adjustment range short-circuit release
380-630A delayed
Setting Range Ol Protector
50-63A
Short-circuit breaking capacity
150 kAIC
Interrupt rating
85-150 kAIC
Connection
Front frame clamp
Overload range
50-63A
Number of poles
Three-pole
Power Xpert Protection Manager x64
Eaton Specification Sheet - NZMH2-A63-BT-NA
Intelligent power starts with accurate, actionable data
The NZMH2-A63-BT-NA uses an adjustable thermal, adjustable magnetic trip to tailor response to your specific motor loads and distribution circuits. This feature translates to precise protection against overloads and short circuits, reducing equipment wear and extending service life for motors and feeders. In practice, engineers can align protection settings with actual load profiles, delivering measurable efficiency gains and safer panel operations. The three-pole design supports balanced phase protection in 690 VAC and up to 750 VDC systems, ensuring consistent interrupt performance across industrial networks. Front frame clamp terminals enable fast, secure installation with minimal panel modification, while the NZM2 frame provides a known form factor for easy replacement and compatibility with existing Eaton infrastructure. Optional accessories like the rocker lever and motor drive streamline operation and commissioning in high-demand environments. With a short-circuit breaking capacity up to 150 kAIC, this breaker enhances fault clearance in large machinery and complex motor circuits, supporting compliance with industry protection standards and reducing the risk of cascading faults. Overall, NZMH2-A63-BT-NA delivers robust protection, straightforward maintenance, and a scalable solution for distribution circuit protection in control panels and switchgear assemblies.
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FAQs
NZMH2-A63-BT-NA uses the NZM2 frame with front frame clamp terminals, enabling quick swaps in Eaton panelboards and compatible switchgear. Verify panel cavity space, ensure the 690 VAC / 750 VDC ratings align with your system, and use the appropriate mounting kit if required. The three-pole design fits standard distribution panels and motor control centers, reducing retrofit complexity.
The device offers adjustable thermal and magnetic trip, enabling you to tailor overload and short-circuit response to motor starting surges and runtime loads. This reduces nuisance trips, protects winding integrity, and improves motor life, while maintaining reliable shutoff during fault conditions.
Yes. With a short-circuit breaking capacity up to 150 kAIC and an interrupt rating of 85-150 kAIC, the NZMH2-A63-BT-NA provides robust fault clearance for demanding industrial circuits and larger equipment, helping limit fault propagation and equipment damage.
The NZMH2-A63-BT-NA is UL Listed, indicating conformity with recognized safety standards. This certification supports compliance in many industrial and commercial environments, though local CE or IP requirements should be confirmed with the end-user specification.
Accessories include a rocker lever and motor drive option, which simplify operation and compatibility with motor-driven control schemes. Quick installation reduces commissioning time, decreases labor costs, and improves system reliability—driving faster return on investment in panel builds and maintenance programs.