The PLC (Power Line Communication) Electric Cabinet, also known as a PLC Demo Box or PLC Control Panel, is a core component in modern smart lighting control systems. Designed to integrate power distribution and intelligent control into a single enclosure, this cabinet enables stable communication and centralized management over existing power lines—without the need for additional communication wiring.
Widely used in street lighting projects, tunnel lighting systems, industrial parks, parking facilities, and municipal infrastructure, PLC electric cabinets provide a reliable and scalable solution for both new installations and lighting retrofits.
What is a PLC Electric Cabinet?
A PLC electric cabinet is a pre-assembled control enclosure that integrates PLC communication modules, lighting controllers, protection devices, and auxiliary components into one standardized or customized panel.
By utilizing power lines for data transmission, the PLC cabinet allows lighting devices to be monitored, controlled, and managed remotely through a centralized platform.
The attached image shows a typical PLC demo cabinet configuration, including:
- PLC lighting controller / concentrator
- EMI (signal isolator / filter)
- Circuit breakers and protection devices
- Terminal blocks and wiring interfaces
- Communication and power distribution modules
This design ensures stable PLC signal transmission, electrical safety, and convenient on-site installation.
Key Applications of PLC Electric Cabinets
PLC electric cabinets are widely deployed in various lighting projects, including:
1. Street Lighting Projects
Used as a main control cabinet to manage multiple lighting loops, enabling:
- Remote ON/OFF control
- Dimming schedules
- Fault detection
- Energy consumption monitoring
2. Tunnel Lighting Systems
Provides centralized control for:
- Zonal lighting management
- Adaptive brightness based on time or sensors
- High reliability in harsh environments
3. Industrial & Commercial Lighting
Ideal for:
- Industrial parks
- Warehouses
- Parking lots
- Campuses and ports
PLC cabinets simplify large-scale lighting management while reducing maintenance costs.
Advantages of PLC Lighting Control Cabinets
- No Extra Communication Wiring
Uses existing power lines for data transmission. - Stable & Long-Distance Communication
Suitable for large outdoor and underground projects. - Centralized Control & Management
One cabinet can manage multiple lighting circuits and controllers. - Easy Installation & Commissioning
Pre-configured before delivery, reducing on-site workload. - High Compatibility
Works with various PLC lighting controllers, gateways, and sensors.
Fully Customized Electric Cabinet Solutions
We offer customized PLC electric cabinets based on project requirements, including:
- Cabinet size and enclosure type
- Internal device configuration
- Number of control loops
- Integration of PLC gateways, loop controllers, AI sensors, meters, or DTUs
- Indoor or outdoor (IP-rated) cabinet designs
Whether the cabinet is used as a demo box, field control panel, or main lighting control cabinet, customization ensures optimal performance and seamless integration with your project.
Reliable Solution for Smart Lighting Projects
Our PLC electric cabinets are designed to meet the practical demands of municipal, infrastructure, and industrial lighting projects, providing a stable foundation for intelligent lighting control systems. From pilot demonstrations to large-scale deployments, these cabinets play a critical role in ensuring system reliability, efficiency, and scalability.
If you are planning a smart lighting project or upgrading an existing lighting system, a PLC electric cabinet offers a proven and future-ready solution.
