All products (new, refurbished, and repairs) are covered by the Industrial Automation Company's 2 Year Warranty. Manufacturer's Warranty does not apply.
Description
Industrial Automation Co. is NOT an Authorized Rockwell Distributor - we have our own unique inventory and sourcing relationships. Review our Reseller notice, here.
The Eaton Cutler-Hammer 140G-K3F3-D40 molded case circuit breaker, part of the versatile 140G series, is designed for high-performance electrical protection with its voltage rating of 600 Volts AC and current rating of 400 Amps. This K size frame circuit breaker features bolt-on connections and offers robust protection with adjustable thermal-magnetic mechanisms, supporting long-time and instantaneous current interruption. With a 35 kA AIC rating at 480 Volts AC and adaptability across fault disruption ratings from 25 to 200 kA, it is well-suited for diverse applications, meeting UL and IEC standards while ensuring easy configuration for both AC and DC thermal-magnetic and electronic protection requirements.
All products (new, refurbished, and repairs) are covered by the Industrial Automation Company's 2 Year Warranty. Manufacturer's Warranty does not apply.
TECHNICAL SPECIFICATIONS
Manufacturer | Eaton Cutler-Hammer |
Brand | Eaton Cutler-Hammer |
Part Number/Catalog No. | 140G-K3F3-D40 |
Product Type | Molded Case Circuit Breaker |
Frame | K |
Amps | 400 |
Interrupting Rating | 35 kA |
Protection Type | Adjust Thermal/ Adjust Magnetic |
Current Range | 400 A |
Rated Insulation Voltage | 1000V |
Rated Impulse Withstand Voltage | 8 kV |
Weight | 7.17 lb |
Mechanical Life | 120 Operations/ hr. |
Electrical Life | 60 Operations/ hr. |

- choosing a selection results in a full page refresh
- press the space key then arrow keys to make a selection