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The 140G-K0H4-D40 is a molded case circuit breaker developed by Allen-Bradley within the Rockwell Automation portfolio. This unit features a K-frame design and supports a maximum current rating of 400 Amps. With an interrupting capability of 100 kA, the breaker ensures reliable protection in electrical systems.
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| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Molded Case Circuit Breaker |
| Product Line | 140G MCB |
| Part Number | 140G-K0H4-D40 |
| Weight | 10.00 lbs (4.54 kg) |
| Frame | K |
| Amps | 400 |
| Interrupting Rating | 100 kA |
| Protection Type | Electronic LSI |
| Poles | 4 |
| Current Range | 400 A |
| Rated Insulation Voltage | 1000 V |
| Rated Impulse Withstand Voltage | 8 kV |
| Mechanical Life | 120 Operations/hr. |
| Electrical Life | 60 Operations/hr. |
The Allen-Bradley 140G-K0H4-D40 is a resilient molded-case circuit breaker from Rockwell Automation's 140G series. This advanced device is engineered for handling substantial electrical loads, with a current capacity set at 400 Amps. Designed with a K frame type, the breaker provides a space-efficient installation option while ensuring robust performance across various applications.
Providing an interrupting rating of 100 kA, the 140G-K0H4-D40 effectively manages different fault conditions, ensuring the protection of valuable electrical systems. It features an electronic LSI protection option which enhances functionality and reliability during operation. The circuit breaker operates with four poles, allowing for versatility in multi-phase applications.
Operating at a rated insulation voltage of 1000 Volts, this unit is suitable for deployment in high-voltage environments. The breaker's rated impulse withstand voltage of 8 kV further guarantees durability against voltage spikes. Weighing approximately 9.15 pounds, it is built to withstand regular use. This device's mechanical life is rated at 120 operations per hour, while its electrical life rating is 60 operations per hour, underscoring its reliability in demanding operational settings.
| Revision Part # | Also known as | |
|---|---|---|
| 140G-K0H4-D40 Ser A | 140G-K0H4-D40/A, Series A, Rev A | |
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