Eaton NZMH2-AF50-BT-NA NZM complete molded case circuit breaker - UL Listed
Part Number: NZMH2-AF50-BT-NA
Quick Summary
The Eaton NZMH2-AF50-BT-NA is a complete molded case circuit breaker designed for distribution protection in industrial panels. Engineers often struggle with nuisance trips, improper coordination, and lengthy commissioning when selecting protective devices. UL Listed certification supports regulatory compliance in North American electrical installations, while the NZM2 frame and adjustable thermal trip enable reliable, scalable protection. In addition, the front frame clamp terminals and available accessories simplify installation and maintenance, delivering faster panel upgrades and reduced downtime.
Product Information
Extended Description
NZMH2-AF50-BT-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMH2, Adj. thermal, fixed magnetic trip, Three-pole, 50A, 690 Vac, 750 Vdc, 85-150 kAIC, Box, Distribution circuit protect., 50-50A, Front frame clamp, 50-50A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH2-AF50-BT-NA
EAN
4015081074631
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.
Certifications
UL Listed
Amperage Rating
50 A
Voltage rating
690 Vac, 750 Vdc
Trip Type
Adjustable thermal, fixed magnetic
Circuit breaker type
NZMH2
Terminals
Box
Frame
NZM2
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Adjustment range short-circuit release
300-500A delayed
Setting Range Ol Protector
50-50A
Short-circuit breaking capacity
150 kAIC
Interrupt rating
85-150 kAIC
Connection
Front frame clamp
Overload range
50-50A
Number of poles
Three-pole
Three-pole protection on the NZM2 frame delivers robust three-phase circuit protection for industrial feeders, reducing the risk of cascading faults and improving overall panel reliability. Business impact: safer fault isolation and consistent protection across critical lines; Application: suitable for distribution panels in manufacturing plants and process facilities. Short-circuit capacity of up to 150 kAIC with an 85-150 kAIC interrupt rating ensures high fault withstand and quick clearance, enhancing uptime in heavy electrical loads; Application: feeders serving motors and process equipment. The device offers an adjustable thermal trip with a fixed magnetic element and an overload setting of 50-50A, plus a delayed short-circuit release (300-500A), enabling precise coordination and reduced nuisance trips; Application: selective protection across multi-feeder installations. Front frame clamp terminals, plus accessories such as rocker lever and motor drive, simplify field wiring and retrofit work; Business impact: faster installation, easier maintenance, and better retrofitability in existing control cabinets. Warranty and compliance are supported by Eaton Selling Policy 25-000, providing one year from installation or eighteen months from shipment; Application: standardizing service expectations and lowering lifecycle risk for plant engineers. Compatibility with box terminals and the NZM2 family ensures straightforward integration with common industrial hardware and control panels.
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FAQs
NZMH2-AF50-BT-NA uses a three-pole arrangement built on the NZM2 frame and features front frame clamp terminals, enabling straightforward mounting in standard distribution panels. It is designed for easy wiring within enclosure spaces and accommodates box terminals, making retrofits or upgrades faster with minimal panel modification.
Key specs include a 50 A amperage rating, voltage rating of 690 Vac and 750 Vdc, and a short-circuit breaking capacity up to 150 kAIC with an interrupt rating range of 85–150 kAIC. The device employs adjustable thermal protection with a fixed magnetic trip, suitable for reliable protection of three-phase feeders.
Yes. Its three-pole design supports three-phase protection for feeders and motor circuits. With an adjustable thermal trip and fixed magnetic element, it provides selective protection to motors and downstream equipment, while the 150 kAIC fault-interrupt capability helps withstand high fault energies typical in motor-driven applications.
This Eaton MCCB is UL Listed, confirming compliance with recognized safety standards for North American installations. No additional certifications are indicated in the provided data, so users should verify project requirements for any CE or other regional certifications if needed.
Warranty is governed by Eaton Selling Policy 25-000, offering one year from the date of installation or eighteen months from the date of shipment, whichever occurs first. This provides a clear baseline for service response and product reliability, supporting maintenance planning and lifecycle management for panel protectors.