140G-KTH3-D40
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Overview of Allen Bradley 140G-KTH3-D40
The Allen Bradley 140G-KTH3-D40 is a molded case circuit breaker trip unit designed for reliable, high-capacity circuit protection in industrial environments. Manufactured by Rockwell Automation, this 3-pole unit is built to the K-frame standard and features advanced electronic Long/Short/Instantaneous (LSI) protection. It is suitable for applications demanding robust fault interruption and adjustable protection settings, making it a core component for safeguarding electrical systems in manufacturing, utilities, and infrastructure projects. With certifications including CCC, KC, and RCM, the 140G-KTH3-D40 meets global standards for safety and performance.
Key Features of Allen Bradley 140G-KTH3-D40
- 3-pole design for balanced three-phase circuit protection
- 400 A frame trip unit with electronic LSI trip capability
- Rated for operation up to 1000V for versatile system integration
- High interrupting capacity for reliable fault protection
- Compact footprint, engineered for efficient panel mounting
- Global certifications including CCC, KC, and RCM
- Long/short time and instantaneous trip adjustments for precise coordination
- Durable construction suited for harsh industrial environments
- Designed for easy integration into Rockwell Automation control systems
Technical Specs of 140G-KTH3-D40
| Specification | Value |
|---|---|
| Brand | Allen Bradley (Rockwell Automation) |
| Model | 140G-KTH3-D40 |
| Type | Molded Case Circuit Breaker Trip Unit |
| Frame | K (400 A) |
| Number of Poles | 3 |
| Trip Unit | Electronic Long/Short/Instantaneous (LSI) |
| Rated Current | 400 A |
| Max Voltage | 1000V |
| Certifications | CCC, KC, RCM |
| Weight | Approx. 7.17 lb |
Applications / Use Case
The Allen Bradley 140G-KTH3-D40 is engineered for demanding applications in industrial automation, process control, and power distribution. Its high interrupting capacity and adjustable trip settings make it ideal for main distribution panels, motor control centers, and switchgear systems. Facilities such as manufacturing plants, data centers, and utility substations benefit from its reliable protection against overcurrent and short-circuit conditions. It supports both AC and DC systems, including those with neutral conductors, ensuring flexibility across a broad range of automation environments. This model is particularly valued in settings where uninterrupted operation and safety are critical.
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