SKU: 84677279165

Eaton Cutler-Hammer KG3350WA12S43Z04 350A 3-Pole Generator Molded Case Circuit Breaker – Bolt-On – 600VAC with A12 Auxiliary & S43 Shunt Trip

Sale price$1439.55 Regular price$1599.50
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Description

Eaton Cutler-Hammer KG3350WA12S43Z04 350A 3-Pole Generator Molded Case Circuit Breaker – Bolt-On – 600VAC with A12 Auxiliary & S43 Shunt TripThe Eaton Cutler Hammer KG3350WA12S43Z04 is a K frame molded case generator circuit breaker engineered for industrial and generator applications. It features a thermal magnetic interchangeable trip unit with a 5001000 Amp magnetic trip range for precise overload and short circuit protection. This model comes equipped with dual configuration options: A12 Auxiliary Switch 2 A (Open) 2 B (Closed), Right Pole Mounted, Exiting Same Side S43 Shunt Trip 1224

The Eaton Cutler-Hammer KG3350WA12S43Z04 is a K-frame molded case generator circuit breaker engineered for industrial and generator applications. It features a thermal-magnetic interchangeable trip unit with a 500–1000 Amp magnetic trip range for precise overload and short-circuit protection. This model comes equipped with dual configuration options:

  • A12 Auxiliary Switch – 2-A (Open) / 2-B (Closed), Right Pole Mounted, Exiting Same Side
  • S43 Shunt Trip – 12–24 VAC/VDC, Left Pole Mounted, Exiting Opposite Side
  • Rated at 350 Ampere at 40°C, the breaker provides robust protection and flexible integration for generator panels and switchgear systems.

Key Features

  • K-Frame Generator Circuit Breaker for high-reliability power protection
  • Thermal-Magnetic Interchangeable Trip Unit
  • Dual Options Installed:
    • A12 Auxiliary Switch (Right Pole, Same Side)
    • S43 Shunt Trip (Left Pole, Opposite Side)
  • Bolt-On Connection for easy installation
  • Line and Load Terminals Standard

Specifications

  • Manufacturer: Eaton / Cutler-Hammer
  • Model: KG3350WA12S43Z04
  • Frame Type: K
  • Rated Current: 350 Ampere
  • Poles: 3
  • Maximum Voltage: 600 VAC
  • Frequency: 50/60 Hz
  • Trip Unit Type: Thermal-Magnetic Interchangeable
  • Magnetic Trip Range: 500–1000 Ampere
  • Interrupting Capacity:
    • 18 kA @ 240 VAC
    • 14 kA @ 480 VAC
    • 10 kA @ 600 VAC
  • Connection: Bolt-On
  • Standard Lug Type: Line and Load End Terminals
  • Warranty: One Year

Applications

  • Industrial generator protection and control
  • Remote tripping and monitoring via auxiliary and shunt trip options
  • Switchgear and generator panel integration
  • Medium-to-large generator backup systems

Notes

The product image represents a base model for identification. Eaton offers installation of your selected accessories at no additional cost—simply provide configuration instructions in the order comment box during checkout.

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: 84677279165

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Taylor McDevitt
Lexington, US
★★★★★ 4
Does it's purpose with style
We used these in our pantry and dining room for shelves and they turned out well. The only reason they are hard to install is because of the design (which is very nice) so it is worth it. It just takes time when you you are hanging the shelves, to do it correctly. While they can hold a lot, we realized that a bunch of cans or jars cannot go on these shelves. Luckily we had another option for heavy items (Example: We had about 40ish pounds of cans/jars on a 1x12 board that is 33 inches long with 2 of these brackets...and it was too much). If you do not need to hold a lot of weight, these shelves are a for sure, for the price and quality. If you NEED they for something heavy, then you probably will have to go with something more practical from a hardware store. We LOVE them for our pantry!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2020
F
Verified Purchase
FredsMyth
Lake Worth, US
★★★★★ 5
Worked as intended
Hubby used these to mount a shelf above a long span of windows. They worked great and allowed a clean visual appearance.
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Reviewed in the United States on December 7, 2025
A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 5
Nice brackets
These are nice sturdy brackets for butcher block shelf however they do bend a bit. We installed in a corner so was able to pin to side wall no problems on big shelf. The smaller shelf about 18” moves a bit up and down when loading. Now very little and no worries about it but not rock solid
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Reviewed in the United States on January 20, 2024
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Verified Purchase
PK
Lexington, US
★★★★★ 5
Easiest shelf brackets ever!
Live these! They were great look good and we’re easy to install
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Reviewed in the United States on December 12, 2025
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Verified Purchase
Calichef
Dallas, US
★★★★★ 5
Sturdy Shelf Brackets
I really like these shelf brackets. They seem very sturdy, which is great for my laundry room shelves over the washer & dryer pair. It's going to be great to FINALLY have shelves for laundry supplies or "buyers' club" household items like 12-packs of paper towels or 36-packs of T.P. I can hardly wait to have my sons install them so I can fill them up!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 13, 2023

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