SKU: 85506138884

Eaton Cutler Hammer KG3400S42 400A 3-Pole Generator Molded Case Circuit Breaker – Bolt-On – 600VAC – Thermal-Magnetic Interchangeable Trip (1000–2000A Range) with S42 Shunt Trip Option

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Description

Eaton Cutler Hammer KG3400S42 400A 3-Pole Generator Molded Case Circuit Breaker – Bolt-On – 600VAC – Thermal-Magnetic Interchangeable Trip (1000–2000A Range) with S42 Shunt Trip OptionThe Eaton Cutler Hammer KG3400S42 is a K frame molded case generator circuit breaker designed for high capacity generator and industrial systems. It features a thermal magnetic interchangeable trip unit with a 10002000 Amp magnetic trip range, providing reliable protection against overloads and short circuits. This model includes the S42 option, which provides a 1224V DC shunt trip, left pole mounted, exiting rear, enabling remote tripping

The Eaton Cutler-Hammer KG3400S42 is a K-frame molded case generator circuit breaker designed for high-capacity generator and industrial systems. It features a thermal-magnetic interchangeable trip unit with a 1000–2000 Amp magnetic trip range, providing reliable protection against overloads and short circuits.

This model includes the S42 option, which provides a 12–24V DC shunt trip, left pole mounted, exiting rear, enabling remote tripping functionality for enhanced operational flexibility.

Rated at 400 Ampere at 40°C with 3 poles, it is ideal for generator panels, switchgear, and industrial backup power systems.

Key Features

  • K-Frame Generator Circuit Breaker for high-capacity protection
  • Thermal-Magnetic Interchangeable Trip Unit
  • High magnetic trip range: 1000–2000 Amp
  • S42 Shunt Trip Option: 12–24V DC, Left Pole Mounted, Exiting Rear
  • Bolt-On Connection for secure installation
  • Line and Load Terminals Standard

Specifications

  • Manufacturer: Eaton / Cutler-Hammer
  • Model: KG3400S42
  • Frame Type: K
  • Rated Current: 400 Ampere
  • Poles: 3
  • Maximum Voltage: 600 VAC
  • Frequency: 50/60 Hz
  • Trip Unit Type: Thermal-Magnetic Interchangeable
  • Magnetic Trip Range: 1000–2000 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
  • Configuration Option:
    • S42: 12–24V DC Shunt Trip, Left Pole Mounted, Exiting Rear
  • Warranty: One Year

Applications

  • Medium-to-large generator protection
  • Industrial and commercial switchgear integration
  • Backup power and emergency generator systems
  • High-capacity power distribution panels

Notes

The product image shows a base model for identification. Eaton provides free accessory installation for your specific configuration—include details 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:
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  • 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]
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SKU: 85506138884

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Thomas J. Shandorf
Birmingham, US
★★★★★ 5
Comprehensive, clear and coherent!
Format: Paperback
The iTEP Practice Guide combines a no-nonsense approach to the specific iTEP tests and at the same time offers exercises that task the student with what they need to know. Exercises not only serve the purpose of scoring well, but the overall approach is communicative competence. We use the text in our group and one-to-one classes with very positive--and lasting--results.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 23, 2019
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Verified Purchase
Sarah Sofía Ortiz Campos
Draper, US
★★★★★ 1
No recomiendo
Format: Paperback
Muy malo, no vine completo, además se demoró mucho más de lo que decía al momento de comprarlo. Solo aplazaban la fecha de entrega sin consultar cómo afectaba al cliente. Yo tuve que presentar el examen sin el libro, porque no llegó en la fecha que decía al comprarlo y después se cambió 3 veces la fecha, casi cumpliendo el mes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025
E
Verified Purchase
Elaine li
Louisville, US
★★★★★ 5
VERY EFFICIENT MATERIAL
Format: Paperback
It's the most efficient material to prepare the test.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2020
T
ThereseHazzard
Waukegan, US
★★★★★ 5
All around helpful---worth the money!
Format: Paperback
This guide has been most helpful for all the folks I help prepare for the iTEP test! It gives insight into what each section of the test is looking for along with examples and great tips about actually TAKING the test. In the Writing and Speaking sections, it also gives sample scores and comments from the Master Grader which is very helpful too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 9, 2019
T
Thomas J. Shandorf
Alexandria, US
★★★★★ 5
Comprehensive, clear and coherent!
Format: Paperback
The iTEP Practice Guide combines a no-nonsense approach to the specific iTEP tests and at the same time offers exercises that task the student with what they need to know. Exercises not only serve the purpose of scoring well, but the overall approach is communicative competence. We use the text in our group and one-to-one classes with very positive--and lasting--results.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 23, 2019

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