ABB SPCD 3C21 Relay Control Board – Technical Overview
The ABB SPCD 3C21 Relay Control Board is an industrial-grade module designed to manage relay operations in complex automation systems. This board provides precise control of relay switching functions, ensuring reliable operation in power distribution, motor control, and process automation applications. Built with high-quality components, the SPCD 3C21 board offers excellent electrical isolation, fast switching speed, and stable performance under varying industrial conditions such as temperature fluctuations, vibrations, and electromagnetic interference. Its robust design supports long-term durability and minimal maintenance needs.
The board features multiple relay outputs that can be configured to handle different load types, including resistive, inductive, and capacitive loads. Its layout ensures minimal signal interference and includes built-in protection against overload and short circuits. Diagnostic indicators such as LEDs provide real-time status updates and fault detection, making troubleshooting easier and faster. The compact design allows seamless integration into existing control panels or cabinets, and standard connectors facilitate straightforward wiring and installation.
Industrial automation is advancing rapidly with growing emphasis on smart grid technologies, energy efficiency, and safety. Components like the ABB SPCD 3C21 Relay Control Board play a crucial role by offering dependable relay control, which is fundamental to system protection and operation. The board is widely used in manufacturing plants, power stations, and infrastructure projects to ensure precise relay actions that protect equipment and maintain system stability. As industries move toward digital transformation, such reliable hardware modules remain vital in bridging traditional systems with modern automated controls.
📊 Key Specifications
| Parameter | Specification |
|---|---|
| Model Number | SPCD 3C21 |
| Function | Relay Control Board |
| Number of Relay Outputs | Multiple (varies by configuration) |
| Operating Voltage | 24 V DC / 110-220 V AC (depending on version) |
| Isolation | Electrical isolation per relay channel |
| Protection | Overload and short circuit protection |
| Indicators | LED status indicators |
| Operating Temperature | -20°C to 60°C (-4°F to 140°F) |
| Dimensions | Compact size, fits standard control cabinets |
🔧 Recommended Similar Models
| Brand | Model Number | Description |
|---|---|---|
| ABB | 3BSE008216R1 | Relay Output Module |
| Allen-Bradley | 1746-OB32 | Relay Output Module for PLC |
| Siemens | 6ES7 138-4CA01-0AA0 | Digital Output Module |
| Schneider | BMXDDO0200 | Relay Output Module for Modicon |
| GE | IC200MDL742 | Relay Output Module |
| Honeywell | 51308654-175 | Relay Control Module |
For product inquiries and support, visit:
🔗 Fengyun Electric Company
🔗 Product Catalog
Zhangzhou Fengyun Electric Equipment Co., Ltd. specializes in industrial automation products, focusing on reputable European and American brands. The company offers strong technical support, quick delivery, and dependable after-sales services to ensure client satisfaction across various industries.
