Eaton NZMH2-A63-NA Molded Case Circuit Breaker - UL Listed
Part Number: NZMH2-A63-NA
Quick Summary
NZMH2-A63-NA molded case circuit breaker by Eaton provides reliable three-pole protection for industrial control panels and motor-drive systems. Engineers often struggle to choose a device that combines precise adjustable trips with compact form factor for crowded enclosures. This unit aligns UL Listed, CSA, and IEC expectations while leveraging the NZM2 frame for scalable protection. With front screw connections, optional motor-drive accessory compatibility, and a clear 50–63 A setting range, it supports efficient panel layouts and fast fault isolation. In practice, this translates to safer, more predictable protection and lower commissioning risk for distributed control and motor-supply applications.
Product Information
Extended Description
NZMH2-A63-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMH2, Adj. thermal, Adj. magnetic trip, Three-pole, 63A, 750 Vdc, Dist. circuit protection, motor drive, 50-63A, 380-630A delayed, 50-63A, conforms to UL/CSA and IEC
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH2-A63-NA
EAN
4015082692339
Product Length/Depth
4.05 in
Product Height
7.24 in
Product Width
4.13 in
Product Weight
5.46 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
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 screw
Overload range
50-63A
Number of poles
Three-pole
Compact circuit-breakers and switch-disconnectors up to 1600 A
Eaton Specification Sheet - NZMH2-A63-NA
Feature: Three-pole NZMH2 on the NZM2 frame provides robust, compact protection for distribution circuits. Impact: Reduces panel footprint while maintaining reliable fault isolation in motor-drive and automation cabinets. Application: Ideal for space-constrained panels in manufacturing lines where high fault tolerance is essential. Feature: Adjustable thermal and magnetic trip offers precise coordination and selectivity. Impact: Improves uptime by preventing nuisance trips and enabling tailored protection curves for motors and drives. Application: Suitable for variable-load machines and variable-speed drives where protection settings must adapt to load profiles. Feature: Front screw connections and documented dimensions (4.05 in x 7.24 in x 4.13 in) simplify mounting and wiring. Impact: Speeds installation, reduces cabinet complexity, and improves serviceability. Application: Retrofit projects and new builds requiring straightforward integration. Feature: 63 A rating with 690 Vac / 750 Vdc capability and 150 kAIC breaking capacity. Impact: Delivers durable fault management for demanding industrial circuits and high-energy motor drives. Application: Distribution circuits and motor-drive protections in automation environments. Feature: Accessories including rocker lever and motor-drive option. Impact: Enhances operability and expandability, enabling easy field adjustments and future upgrades. Application: Cabinets needing ergonomic operation and scalable protection strategies. Feature: Compliance alignment with UL Listed, CSA, and IEC expectations. Impact: Facilitates faster approvals, safer procurement, and streamlined compliance documentation. Application: Global manufacturing sites with cross-border requirements and supplier-standardization goals.
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FAQs
Yes. The NZMH2-A63-NA is designed for the NZM2 frame and uses a front screw connection, aligning with standard mounting patterns. It is a three-pole device with a 63 A rating, and its compact 4.05 in depth, 7.24 in height, and 4.13 in width support straightforward panel integration. Its rocker lever and motor-drive accessories further simplify retrofit and modernization projects, reducing installation time and miswiring risk.
The breaker supports 690 Vac and 750 Vdc, with an adjustable thermal and magnetic trip. Setting range for overload is 50–63 A, and the short-circuit release is adjustable from 380–630 A (delayed). It offers a short-circuit breaking capacity of 150 kAIC and an interrupt rating of 85–150 kAIC, making it suitable for demanding motor-drive protection and distribution circuits.
Absolutely. The NZMH2-A63-NA is intended for distribution circuit protection and motor-drive applications within industrial automation. Its three-pole design, adjustable protection, and NZM2 frame support safe, selective protection in control cabinets and drive panels, while its compact footprint helps optimize enclosure space and wiring efficiency.
This device is UL Listed and is compatible with CSA and IEC standards per Eaton’s datasheet and product description. Comprehensive documentation includes the Eaton Specification Sheet NZMH2-A63-NA and catalog references, enabling straightforward regulatory submissions and quality assurance. When specifying for global builds, confirm local certification needs and ensure attachment of the appropriate datasheet for approvals.
Eaton provides a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. For ROI, the NZMH2-A63-NA’s adjustable trip ranges, high fault-current capability, and front-access installation contribute to reduced downtime, easier maintenance, and a predictable maintenance schedule, translating to lower long-term operating costs in automated facilities.