Eaton Cutler Hammer NG3900 900A 3P Molded Case Generator Circuit Breaker – Bolt-On – 600VAC
SKU: 82445249172

Eaton Cutler Hammer NG3900 900A 3P Molded Case Generator Circuit Breaker – Bolt-On – 600VAC

$4769.55 $5299.50
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Description

Eaton Cutler Hammer NG3900 900A 3P Molded Case Generator Circuit Breaker – Bolt-On – 600VACThe Eaton NG3900 is a high capacity molded case generator circuit breaker designed for precise protection of generators and industrial power systems. Featuring an NG frame style with an electronic interchangeable trip unit, it offers a 12505000A adjustable trip range, providing reliable protection against overloads and short circuits. This model comes with standard terminals and robust interrupting ratings across multiple voltages, ensuring safe and

The Eaton NG3900 is a high-capacity molded case generator circuit breaker designed for precise protection of generators and industrial power systems. Featuring an NG frame style with an electronic interchangeable trip unit, it offers a 1250–5000A adjustable trip range, providing reliable protection against overloads and short circuits. This model comes with standard terminals and robust interrupting ratings across multiple voltages, ensuring safe and dependable operation in demanding electrical applications.

Product Specifications

• Manufacturer: Eaton / Cutler Hammer
• Frame Type: NG
• Breaker Type: Molded Case Generator Circuit Breaker
• Trip Unit: Electronic Interchangeable
• Trip Range: 1250–5000A
• Amperage: 900A at 40°C
• Poles: 3
• Mounting Type: Bolt-On
• Standard Lug Type: With Terminals Standard

Technical Specifications

• Interchangeable electronic trip unit for flexible protection
• Adjustable thermal-magnetic trip settings
• Suitable for generator and industrial applications
• Supports accessory installation at no additional cost
• One-year manufacturer warranty

Voltage and Ratings

• Voltage: 600VAC
• Frequency: 50/60 Hz
• Interrupting Ratings: 18 kA @ 240VAC, 14 kA @ 480VAC, 10 kA @ 600VAC
• Rated Current: 900A at 40°C

Product Data

• Series: NG Frame
• Poles: 3
• Mounting: Bolt-On
• Typical Applications: Generator protection, industrial switchgear, power distribution systems

Important Note

This product image represents a base model for identification purposes only. If purchasing accessories with the breaker, Eaton will install them according to your specific configuration requirements at no additional cost. Please provide all necessary instructions in the order comment box during checkout to ensure proper installation and compatibility.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 82445249172

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4.3 ★★★★★
Based on 1962 reviews
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Product Reviews
M
Verified Purchase
Mike
Carnegie, US
★★★★★ 4
Good watch but misadvertised with wrong color
Color: Black, Style: AE-1000W-1AVDF
So far I really like this watch but you get a different watch color than pictured. The watch is the AE-1000W-1AVDF which shows silver/grey and black, with a blue world map. You don't get that as the 1AVDF model is an all black watch with a grey world map. The watch is just as nice but not what was shown and sold as, so BEWARE.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
M
Verified Purchase
M. Hernandez
Phoenix, US
★★★★★ 5
Very nice watch for the price.
Color: Black/Gold, Style: AE-1000W-1A3VCF, Color: Black/Gold, Style: AE-1000W-1A3VCF
Very nice watch and good deal. This watch was in excellent condition and looked great after I modified it.
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Reviewed in the United States on May 11, 2026
V
Verified Purchase
Vincent Robert Annunziato
Waukegan, US
★★★★★ 5
Great Watch For the Money
Color: Black/Black, Style: AE1000W-1BVCF
I have been purchasing Casio watch products for over 25 years now. Their watches are low cost and nicely designed. I was not let down when I received this watch and all for 18 dollars. The watch is nice looking, has mostly usable features which fulfills its purpose. For a watch that costs under 20 dollars this is a great knock-around piece that can be worn in any setting. Whether hiking/climbing in the woods, fixing the car, swimming or just plain rough housing with my kids, having a low cost and functional watch that fits all my needs really makes this product a great buy. This Casio comes with several functions: 1) You can track up to 4 different time zones. Since I do a fair amount of business travel (about 1x a month), I am constantly in different time zones. Now I can set them easily. 2) The watch has a manual DST setting which I don't mind. It's literally a push of a button. 3) It is water resistant to 10 Bar. This means swimmers, surfers, etc... can use this watch with confidence. 4) It comes with a typical alarm. I always make sure I know how to turn this off, because you know somehow some 2 or 3 year old will get it and find a way to turn on the alarm so that it wakes you and 0200 in the morning. 5) Stop watch. Not much to say here. I use it for running/walking Cons: A couple of oddball design features that are difficult to see. 1) The upper right hand circle is actually a visual of an analogue watch, so that if you look at another time zone besides the one that you set for your home city, you can get a quick view of the time. Not so easy to see. 2) The time zone characterization is also difficult to see and not so sure it is necessary, since the back of the directions lists out the cities you can use to select the proper time zones. So this may not be a "smart" watch which seems to be very popular these days, but I will say the price makes it very worth while. If you need a knock-around that looks nice and has the core functions you need, I think you will be very satisfied with this product. You know... maybe some things don't need to be smart. Enjoy!
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Reviewed in the United States on November 2, 2014
V
Verified Purchase
Vinto
Boise, US
★★★★★ 5
It is mini computer for such a low price. My favorite. Just go for it, you will be amazed!
Color: Black, Style: AE-1000W-1AVDF
I would say this is a mini computer and I keep wondering how could they put these many functions inside this small watch and offering it for 15 dollars.I'm blown away by this wonderful product and this is my favorite watch all the time and I rarely wear my other watches. Isn't this amazing that it got the time for close to 50 cities and I can select 4 of them in T1(Home City), T2, T3 and T4 to easily flip through using the bottom right button. This functionality helped me a lot during my 2 international trips through multiple transits. Before the departure I select all the Cities that I'm transiting through so that I can easily flip to that time zone when I land in that airport and I do not need to rely on airport clock or internet to know the time and calculating the time left for catching my connecting flight. I love this watch especially for this functionality. While scrolling through the time zones for selection the tiny world map in the watch will blink the specific geographical area for that time zone. The capabilities of this watch does not end here, It has lot more to offer. We can program 5 daily or one time alarms into this tiny piece. Stopwatch, Counter, 12 or 24 hour time format, Day light saving ON or OFF which simplifies the time setting when the DST switches. We can set it to signal a beep for every hour. There is digitally displayed manual clock at the top right corner which will display your home country time stored in the T1 timezone. When I go on an international trip, I flip the digital display to local time(T2-T4) and will refer the home city time(T1) in the manual clock. The watch is really durable, light weight, stylish, sporty, water proof, 10 years battery life and comes with a detailed instruction for setting up each and every functionality of this watch.What more can I expect for a 15 dollar watch. My impression to buy this watch happened after seeing one my friends wearing it. I bought one for me and 3 more for giving it as gift. My friend lost it twice and bought the same watch 3rd time which proves how much he also likes it. The last thing that I want to say is, I don't like the fancy brands which charge their customers just for the sake of their brand name or fancy packaging and offer noting more than a normal brand offers. I always prefer quality over show off so I picked this Casio watch. I really appreciate that CASIO believed in quality and functionality and not on fancy packaging. I feel really bad that I'm writing this review after 1.5 years of my purchase and I should have done it long back. I highly recommend this watch for everyone and I'm sure you will never be disappointed.
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Reviewed in the United States on April 23, 2016
J
Verified Purchase
James moore
Cuba, US
★★★★★ 5
Excellent value
Color: Green, Style: AE1000W-3AV
Nice watch typical Casio quality for a excellent price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026

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