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Allen Bradley 140G-K3F3-D40 Molded Case Circuit Breaker
- Product Details
- FAQs
- Related
- Contact Us
- Packing & Delivery
- Product Ratings
Product Introduction
The Allen Bradley 140G-K3F3-D40 Molded Case Circuit Breaker is a robust and reliable molded case circuit breaker (MCCB) designed to provide advanced protection for electrical distribution systems in industrial environments. As part of the 140G series, this breaker is engineered to handle high current loads while ensuring safe and efficient operation.
With a rated current of 400 A and a breaking capacity of 35 kA at 480 VAC, this MCCB offers strong protection against overloads and short circuits. It features a K frame design, providing a compact yet powerful solution for medium to high-power applications. The thermal-magnetic (T/M) trip unit includes adjustable thermal and magnetic settings, allowing precise configuration based on system requirements.
This breaker is a 3-pole device, making it suitable for three-phase power systems. Designed with an 80% rating, it ensures stable continuous operation under defined conditions. Its mountable structure without bus bar mounting offers flexibility for panel integration in various industrial installations.
Product Specifications
| Parameter | Description |
|---|---|
| Product Model | 140G-K3F3-D40 |
| Series | 140G MCCB |
| Frame Type | K Frame |
| Rated Current | 400 A |
| Number of Poles | 3 Pole |
| Breaking Capacity | 35 kA @ 480 VAC |
| Trip Unit Type | Thermal-Magnetic (Adjustable) |
| Thermal Setting | Adjustable |
| Magnetic Setting | Adjustable |
| Utilization Rating | 80% Rated |
| Mounting Type | Panel Mountable |
| Bus Bar Compatibility | No Bus Bar Mounting |
| Standards | IEC |
| Dimensions | 205 × 108.5 × 140 mm |
| Weight | 3.25 kg |
Applications
● Industrial Power Distribution
Reliable circuit protection ensures safe operation of electrical systems.
● Motor Protection Circuits
Adjustable trip settings provide tailored protection for motor loads.
● Control Panels and Switchgear
Compact K frame design allows efficient integration into panels.
● Manufacturing Facilities
High breaking capacity protects equipment from fault conditions.
● Energy and Utility Systems
Stable performance under high load conditions supports critical infrastructure.
Advantages
● High Breaking Capacity
35 kA at 480 VAC ensures strong short-circuit protection.
● Adjustable Protection Settings
Thermal and magnetic adjustments allow precise customization.
● Compact and Efficient Design
K frame structure provides high performance in a compact size.
● Flexible Installation
Panel mountable without bus bar requirement increases installation options.
● Reliable Continuous Operation
80% rated design supports stable long-term use.
● Durable Construction
Designed for industrial-grade reliability and longevity.
FAQ
- Can this circuit breaker help reduce electrical fire risks?
Yes, it is designed to disconnect abnormal electrical conditions before excessive heat buildup can damage connected equipment or wiring. - Is this breaker suitable for critical industrial systems?
Yes, it is commonly used in industrial environments where reliable circuit protection is essential for operational continuity and equipment safety. - How does adjustable protection improve system safety?
It allows engineers to configure protection levels according to application requirements, helping avoid nuisance trips while maintaining proper protection. - Can this breaker be used in demanding operating environments?
Yes, its industrial-grade construction is intended for continuous operation in challenging electrical systems. - What happens if a short circuit occurs?
The breaker is designed to rapidly interrupt fault conditions to help minimize damage to connected equipment and electrical infrastructure. - Why is thermal and magnetic protection important?
Thermal protection responds to overload conditions, while magnetic protection reacts quickly to severe fault events such as short circuits. - Is this breaker appropriate for motor-related applications?
Yes, it is frequently used in systems where stable motor protection and controlled power distribution are required. - Can this unit improve equipment reliability?
Yes, proper circuit protection helps reduce unexpected shutdowns and electrical stress on connected devices. - What installation environments are suitable for this breaker?
It is typically installed inside industrial control panels, switchboards, and electrical distribution cabinets. - Why is reliable circuit interruption important in industrial systems?
Fast and dependable interruption helps prevent equipment failure, operational downtime, and potential electrical hazards.
Related Models
| Model | Description |
|---|---|
| 140G-K3F3-D32 | Lower current variant (320 A) |
| 140G-K3F3-D50 | Higher current variant (500 A) |
| 140G-K3F3-C40 | Different trip configuration |
| 140G-H3F3-D40 | Larger frame size |
| 140G-K3F3-D40L | Extended feature model |
| 140G-K3F3-D25 | Mid-range current option |
Popular Models
| Model | Description |
|---|---|
| 140G-H3F3-D50 | High-capacity MCCB |
| 140G-K2F3-D25 | Compact MCCB |
| 140M-C2E-B25 | Motor protection breaker |
| 1492-SPM1C100 | Supplementary protector |
| 140G-J3F3-D16 | Small frame MCCB |
| 140U-K6D3-C63 | UL-rated circuit breaker |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
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