Eaton NZMH3-AE250-NA MCCB - 150 kAIC
Part Number: NZMH3-AE250-NA
Quick Summary
Eaton NZMH3-AE250-NA MCCB provides reliable overcurrent protection for electrical distribution panels in industrial settings. Engineers face balancing protection, space, and downtime; this unit’s compact front‑connected design helps streamline installation without compromising performance. Certifications such as CE/UL listings are commonly referenced for industrial MCCBs, with exact approvals confirmed by the manufacturer. With a 125–250 A adjustable OL protector, a 690 V AC rating, and a 150 kAIC short‑circuit breaking capacity, NZMH3-AE250-NA aligns with modern protection schemes for motors, drives, and panelboards. The combination of three‑pole construction, front screw connections, and optional motor‑drive rocker lever supports scalable, compliant installations while delivering measurable uptime and warranty coverage.
Product Information
Extended Description
NZMH3-AE250-NA Eaton: MCCB NZM, NZM3 TM and Elec. Breakers, Circuit Breaker, 125-250A OL Prot. Rng, Screw connection, front, Three-pole, 250A Perm. Current, 150 kA, 125-250A Set. Rng OL Prot., 500-2750A Undelayed Adj. Rng., Rocker lever, motor drive optional
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH3-AE250-NA
EAN
4015082693022
Product Length/Depth
5.51 in
Product Height
6.53 in
Product Width
6.53 in
Product Weight
14 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
Contact Manufacturer
Amperage Rating
250 A
Voltage rating
690 V AC
Trip Type
T268
Circuit breaker type
NZMH3
Frame
NZM3
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Adjustment range short-circuit release
500-2750A delayed
Setting Range Ol Protector
125-250A
Short-circuit breaking capacity
150 kAIC
Interrupt rating
100 kAIC at 480 Vac
Connection
Front screw
Overload range
125-250A
Number of poles
Three-pole
Three‑pole NZMH3 frame provides robust protection for 125–250 A feeders, while a 690 V AC rating supports diverse industrial applications. Business impact: reliable protection reduces nuisance trips and downtime; ideal for distribution boards, machine controls, and motor feeders. The 125–250 A OL protector offers tailored coordination, improving selectivity and fault containment in evolving panels. Short‑circuit breaking capacity of 150 kAIC ensures safe interruption during high‑fault currents, lowering arc flash risk and equipment damage. Front screw connections simplify wiring and service access, enabling quicker installations and easier panel upgrades in tight electrical rooms. Optional rocker lever for motor drive compatibility enhances control of automated equipment and reduces retrofitting time in existing MCC systems. With a 500–2750 A delayed range, operators gain flexible protection timing for motors and drives, supporting safer shutdown and maintenance windows.
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FAQs
NZMH3-AE250-NA utilizes a front screw connection and is a three‑pole NZM3 frame MCCB. This configuration simplifies wiring, enables straightforward panel mounting, and supports quick in‑cabinet servicing, reducing overall install time and enabling easier field upgrades or replacements in existing distribution panels.
Key specs include a 250 A amperage rating, 690 V AC voltage rating, 150 kAIC short‑circuit breaking capacity, and a T268 trip type. The device offers a 125–250 A adjustable overload protector and a delayed range of 500–2750 A, making it suitable for selective coordination in demanding industrial environments.
This MCCB is well suited for industrial distribution panels, motor drive interfaces, and machine control panels. Its three‑pole construction and high interrupt capacity support protection for feeders, drives, and heavy motors, while front‑screw wiring simplifies retrofit projects and panel upgrades.
Certifications for this product are listed as manufacturer‑dependent; confirm the official approvals with Eaton. Typical industry references for MCCBs include CE and UL listings, so verify the exact certifications with the manufacturer to ensure regulatory compliance for your region and application.
The device falls under Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever comes first. For maintenance, plan periodic inspection of terminal connections, trip settings, and mechanical operation, plus ensure motor‑drive accessories remain compatible during any upgrade cycles.