SKU: 40722923573

Eaton Cutler Hammer NG3900S02 900A 3P Molded Case Generator Circuit Breaker – Bolt-On – 600VAC

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Description

Eaton Cutler Hammer NG3900S02 900A 3P Molded Case Generator Circuit Breaker – Bolt-On – 600VACThe Eaton NG3900S02 is a high capacity molded case generator circuit breaker designed for reliable 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 for precise overload and short circuit protection. The S02 option includes a factory installed shunt trip, left pole mounting, and rear exit, with standard terminals included to

The Eaton NG3900S02 is a high-capacity molded case generator circuit breaker designed for reliable 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 for precise overload and short-circuit protection. The S02 option includes a factory-installed shunt trip, left pole mounting, and rear exit, with standard terminals included to ensure flexible installation and dependable operation.

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
• Configuration: S02 Option Includes [9–24 VAC or VDC Shunt Trip Installed, Left Pole Mounted, Exiting Rear]
• 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: 40722923573

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Paul Thomas
Cuba, US
★★★★★ 5
Great value, sturdy product
Size: 16 x 18 Inch, Size: 16 x 18 Inch
Made a custom built 24" round resin pour table, and this worked great for the base, looks good too.
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Reviewed in the United States on April 20, 2026
C
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Cynncat
Draper, US
★★★★★ 4
Easy to put together
Size: 16 x 18 Inch
Great legs and look great with the table, however, the legs connect to a peak and is not level. A friend made me some spacers on his 3d printer so I could use them.
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Reviewed in the United States on October 8, 2025
S
Verified Purchase
sara hunter
Draper, US
★★★★★ 5
Easy to put together and sturdy.
Size: 16 x 18 Inch
Perfect base for my diy coffee table. Easy to use and exactly what I needed
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Reviewed in the United States on March 5, 2026
L
Verified Purchase
LDS
Carnegie, US
★★★★★ 3
It high quality but usable.
Size: 16 x 18 Inch, Size: 16 x 18 Inch
Kind of poor quality. The 4 way connectors do not set level to each other and the 3/16” Allen screws strip out very easily. I wouldn’t buy again.
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Reviewed in the United States on May 27, 2026
D
Verified Purchase
Debra M
Alexandria, US
★★★★★ 5
Metal table legs
Size: 28 x 24 Inch
Table legs are very sturdy for our two inch thick, round cut, epoxy slab. Great accent table.
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Reviewed in the United States on January 12, 2026

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