Eaton NZMN1-4-A63 Molded Case Circuit Breaker - UL Listed
Part Number: NZMN1-4-A63
Quick Summary
NZMN1-4-A63 Molded Case Circuit Breaker is designed for robust distribution protection in industrial panels and machine control cabinets. Operators frequently confront mis-specified trip settings and compatibility gaps when upgrading legacy gear, leading to downtime and risk. This Eaton device carries UL Listed certification, aligning with essential safety standards for electrical protection equipment and supporting reliable performance in demanding environments. With a four-pole NZMN1 frame, a 63 A rating, and ratings up to 690 Vac or 500 Vdc, it covers a broad range of distribution needs. Its front-frame clamp enables straightforward installation and service access, while the adjustable setting range (50-63 A) helps tune protection to exact load profiles. The result is improved uptime, simpler maintenance, and safer, compliant panels.
Product Information
Extended Description
NZMN1-4-A63 Eaton: Eaton Series NZM complete molded case circuit breaker, NZM1-frame, NZMN1, Thermal-magnetic trip, 380-630A trip rating, Four-pole, 63A, 690 Vac, 500 Vdc, 50 kAIC, Distribution circuit protection, 50-63A, Front frame clamp, 50-63A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN1-4-A63
EAN
4015082658151
Product Length/Depth
2.68 in
Product Height
5.71 in
Product Width
3.54 in
Product Weight
4.7 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.
Certifications
UL Listed
Amperage Rating
63 A
Voltage rating
690 Vac, 500 Vdc
Trip Type
T268
Circuit breaker type
NZMN1
Frame
NZM1
Class
Distribution circuit protection
Accessories
Rocker lever
Setting Range Ol Protector
50-63A
Short-circuit breaking capacity
50 kAIC
Interrupt rating
50 kAIC
Connection
Front frame clamp
Overload range
50-63A
Number of poles
Four-pole
Trip rating
380-630 A
Feature: Four-pole NZMN1 frame and 63 A rating with a 380-630 A trip rating and 50 kAIC short-circuit capacity. → Business Impact: Provides robust interruption performance for high-energy industrial circuits, reducing fault duration and equipment damage. → Application: Ideal for distribution circuits in manufacturing lines and large enclosure panels that demand strong fault current handling. Feature: Thermal-magnetic trip (T268) with a 50-63 A setting range. → Business Impact: Precise protection aligned to dynamic loads, minimizing nuisance trips and optimizing energy use. → Application: Suitable for machines with variable loads and critical process equipment where stability is essential. Feature: Front frame clamp connection and NZM1 frame compatibility. → Business Impact: Simplifies installation, maintenance, and replacement with existing NZM1 hardware, lowering labor costs. → Application: Quick retrofit in modernizing legacy panels or expanding distribution boards. Feature: 690 Vac / 500 Vdc voltage rating and 50 kAIC interrupt capacity. → Business Impact: Broad protection scope for AC and DC systems, ensuring safety across mixed electrical environments. → Application: Industrial plants with mixed-electrical architectures, including DC bus applications. Feature: Accessories such as rocker lever and documented 50-63 A overload range. → Business Impact: Enhanced operability and clear, adjustable protection settings, reducing commissioning time and errors. → Application: Panel builders and maintenance teams seeking intuitive controls and reliable protection configuration.
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FAQs
Ensure the panel accepts the NZM1 frame, mount the breaker using the front frame clamp, and torque per Eaton specifications. Confirm alignment with busbars and verify that the 50-63 A setting range is adjusted to the protected load. Test after installation to verify proper tripping under simulated fault conditions.
The unit uses a thermal-magnetic trip type T268 with a setting range of 50-63 A. It is designed for a 380-630 A trip rating and has a short-circuit capacity of 50 kAIC, providing selective protection for distribution circuits.
Yes. The breaker is rated for 690 Vac and up to 50 kAIC, making it appropriate for demanding industrial distribution panels and mixed voltage environments in many manufacturing facilities.
The product carries UL Listed certification, ensuring compliance with established safety standards for electrical protection equipment used in industrial environments.
Warranty is per Eaton policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. For field support or replacement parts, contact Eaton or your authorized distributor for service options.