Eaton NZMH2-AF125-BT-NA NZM MCCB - 85-150 kAIC
Part Number: NZMH2-AF125-BT-NA
Quick Summary
Eaton NZMH2-AF125-BT-NA is a complete molded case circuit breaker for distribution protection in industrial panels. Engineers often encounter nuisance trips and ambiguous settings, making precise protection and straightforward installation essential. Typical NZM family devices offer CE-like compliance considerations; verify current approvals with Eaton for your region. Built around the NZM2 frame, this model delivers 125 A protection with 690 Vac / 750 Vdc ratings and an interrupt capacity of 85-150 kAIC, while fixed magnetic trip ensures rapid fault clearance. Combined with front-frame clamp wiring and available accessories like rocker lever and motor drive, it enables reliable protection with efficient installation, reduced commissioning time, and easier maintenance planning for complex panel assemblies.
Product Information
Extended Description
NZMH2-AF125-BT-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMH2, Adj. thermal, fixed magnetic trip, 750-1250A delayed, Three-pole, 125A, 690 Vac, 750 Vdc, 85-150 kAIC, Box, Distribution circuit protect., Front frame clamp
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH2-AF125-BT-NA
EAN
4015081074709
Product Length/Depth
5.9 in
Product Height
7.7 in
Product Width
4.1 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
Amperage Rating
125 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
Setting Range Ol Protector
125-125A
Short-circuit breaking capacity
150 kAIC
Interrupt rating
85-150 kAIC
Connection
Front frame clamp
Overload range
125-125A
Number of poles
Three-pole
Trip rating
750-1250 A delayed
125 A, 3-pole design within the NZM2 frame delivers consistent distribution circuit protection for industrial panels, improving reliability and reducing downtime in critical infrastructure. This configuration supports 690 Vac and 750 Vdc operation, giving you cross-compatibility with diverse control systems while maintaining compact footprint and straightforward wiring; in practice, engineers see faster panel assembly and safer, clearer fault indication in crowded switchgear spaces. The adjustable thermal, fixed magnetic trip provides both selectivity for motor loads and immediate protection for high fault currents, enabling tailored protection curves that reduce nuisance trips and preserve equipment life in demanding environments. The 125-125 A OL protector range and 750-1250 A delayed trip enable precise coordination with upstream devices, improving feeder protection and overall system uptime. With a short-circuit breaking capacity up to 150 kAIC and an interrupt rating of 85-150 kAIC, this MCCB handles large fault events with confidence, limiting damage and improving safety margins. Front frame clamp terminals simplify field wiring and inspection, accelerating installation and future maintenance in dense control panels, while box terminations offer robust, secure connections. The NZMH2 offers compatibility with accessories such as rocker lever and motor drive, extending control options for motor control centers and distribution panels; this combination supports scalable protection schemes as plant layouts evolve.
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FAQs
The NZMH2-AF125-BT-NA uses a front frame clamp connection within the NZM2 frame and three-pole configuration, fitting standard NZM2 panelboards and distribution assemblies. Its 125 A rating and box terminals support straightforward wiring, while the 690 Vac / 750 Vdc ratings align with common industrial power systems. Always verify mounting clearances and accessory compatibility during retrofit projects.
This device features adjustable thermal protection paired with a fixed magnetic trip, enabling tailored overload protection and reliable instantaneous response to short circuits. The overload protection range is 125-125 A, and the trip rating spans 750-1250 A delayed. This configuration supports selective coordination with upstream protection, reducing downtime while protecting downstream equipment.
Yes. The NZMH2-AF125-BT-NA lists rocker lever and motor drive as available accessories, enabling easier manual operation and enhanced motor control schemes. These options integrate with the front-frame clamp design for quick retrofits, and they support scalable protection configurations in motor control centers and distribution panels.
The breaker offers an interrupt rating of 85-150 kAIC and a short-circuit breaking capacity of 150 kAIC, providing robust fault interruption for demanding distribution systems. This performance supports protection during high fault currents while minimizing collateral damage to conductors and devices, a key consideration for large commercial and industrial installations.
Warranty for this Eaton product follows Eaton Selling Policy 25-000, offering one year from installation or 18 months from shipment, whichever comes first. Compliance notes indicate 'Contact Manufacturer' for current approvals, so always confirm region-specific certifications (CE, UL/CSA, etc.) and ensure documentation is on hand during commissioning and audits.