Emerson KJ3003X1-EA1 12P0921X022 Serial Interface Terminal Block
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8615305023276 | |||||||
| +8615305023276 | ||||||||
| 15305023276 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||

Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | KJ3003X1-EA1 |
| Ordering Number | 12P0921X022 |
| Product Type | Serial Interface Terminal Block |
| Manufacturer | Emerson |
| Series | DeltaV™ Distributed Control System |
| Primary Function | Provides field wiring termination and signal interfacing for serial communication modules |
| Terminal Type | Industrial-grade screw terminal connections |
| Signal Support | Serial communication signal termination and routing |
| Interface Compatibility | Compatible with DeltaV serial interface modules |
| Wiring Method | Field-side terminal block wiring |
| Electrical Isolation | Designed to support reliable signal integrity and isolation requirements |
| Connection Capacity | Supports multiple serial communication signal connections |
| Diagnostics Support | Compatible with system-level communication diagnostics |
| Installation Method | DIN rail or system carrier mounting (depending on application configuration) |
| Maintenance Features | Easy-access terminal layout for simplified maintenance and replacement |
| EMC Compliance | Industrial-grade EMI/EMC protection |
| Operating Environment | Industrial automation and process control applications |
| Application Areas | Power generation, oil & gas, petrochemical, water treatment, pharmaceutical, and manufacturing industries |
| Dimensions | 120 × 70 × 55 mm |
| Weight | 0.09 kg |
FAQ
Q1: What is the primary purpose of the Emerson KJ3003X1-EA1 Serial Interface Terminal Block?
A1: The KJ3003X1-EA1 Serial Interface Terminal Block serves as the physical connection point between field communication wiring and the DeltaV serial interface system. It provides organized termination for communication signals, helping ensure secure wiring, reliable signal transmission, and simplified installation. By acting as the interface between field devices and control system communication modules, it contributes to stable and efficient data exchange throughout the automation network.
Q2: Which applications commonly use the KJ3003X1-EA1 terminal block?
A2: This terminal block is commonly used in industrial automation environments where serial communication is required between the DeltaV control system and external devices. Typical applications include communication with PLCs, analyzers, intelligent instruments, motor control systems, power monitoring equipment, flow computers, and remote terminal units. Its robust industrial design makes it suitable for both process and discrete manufacturing environments.
Q3: How does the KJ3003X1-EA1 improve communication reliability?
A3: Reliable communication begins with proper signal termination and cable management. The KJ3003X1-EA1 provides secure electrical connections that minimize the risk of loose wiring, intermittent signal loss, and communication interruptions. Its structured terminal arrangement also helps maintain signal integrity by reducing wiring errors and simplifying troubleshooting, resulting in more dependable communication performance.
Q4: Why is proper field wiring important when using this terminal block?
A4: Correct field wiring is essential for maintaining communication stability and preventing signal degradation. Improper wiring can lead to intermittent communication failures, data corruption, or complete loss of connectivity. The KJ3003X1-EA1 is designed to facilitate organized wiring practices, allowing technicians to clearly identify connections, verify signal paths, and maintain consistent communication performance throughout the system lifecycle.
Q5: What maintenance advantages does the KJ3003X1-EA1 provide?
A5: The terminal block features an accessible wiring layout that simplifies inspection, testing, and replacement activities. Maintenance personnel can quickly verify wiring conditions, perform continuity checks, and identify connection issues without extensive system disassembly. This streamlined maintenance process reduces troubleshooting time, improves service efficiency, and helps minimize process downtime.
Q6: Can the KJ3003X1-EA1 support system expansion projects?
A6: Yes. The terminal block is well suited for system expansion and modernization projects because it provides a structured interface for integrating additional communication devices. When new equipment is added to the automation network, the terminal block helps maintain organized wiring practices and simplifies the integration process, reducing installation complexity and improving long-term maintainability.
Q7: How does the terminal block contribute to system safety and operational stability?
A7: Secure and properly terminated communication wiring is critical for safe and reliable operation. The KJ3003X1-EA1 helps reduce risks associated with loose connections, wiring faults, and signal interruptions. Stable communication between control systems and field devices supports accurate monitoring, timely control actions, and reliable alarm handling, all of which contribute to safer plant operation and improved process stability.
Q8: Why is the KJ3003X1-EA1 an important component in DeltaV communication architectures?
A8: Although it is a passive interface component, the KJ3003X1-EA1 plays a vital role in maintaining communication quality within DeltaV systems. It provides the structured connection point necessary for reliable signal transmission between field devices and serial communication modules. By supporting efficient installation, simplified maintenance, and dependable communication pathways, the terminal block contributes significantly to overall system reliability, availability, and long-term operational performance.
Emerson KJ3003X1-EA1 12P0921X022 Serial Interface Terminal Block is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8615305023276 | |||||||
| +8615305023276 | ||||||||
| 13950166376 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.








