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4R Relay 4ch 20Amp / ch DIN-Rail
Category: Multifunction Relay controller, Latching Relay Actuator, Momentary Relay Actuator, Momentary Relay Actuator IO Controller, Mini Mix Module, Mini Relay Module
Model: NS-HSB750-CL-10
Total Price: $233.00
Stock Status: In Stock
The 4R Relay 4CH 20A/Ch DIN-Rail Module is a heavy-duty power switching device engineered for commercial, industrial, and building automation applications. Featuring 4 independent relay outputs, each capable of handling up to 20 Amps, this module provides reliable ON/OFF control for high-current electrical loads.
Built with industrial-grade components, the relay module ensures long operational life, electrical isolation, and safe load switching. Its DIN-rail (G4-compatible) design allows easy installation in control cabinets and automation panels.
The module integrates seamlessly with PLC systems, building management systems (BMS), microcontrollers, and automation controllers, making it suitable for lighting control, motor switching, HVAC equipment, pumps, heaters, and power distribution applications.
With manual override capability, status indication LEDs, and robust relay protection, the 4R Relay module is a dependable solution for modern automation environments requiring high current handling and precise load control.
Key Features
- 4 independent relay channels for isolated load control
- High current capacity — 20A per channel
- Suitable for AC loads including lights, motors, pumps, heaters, and contactors
- DIN-Rail mountable design for control panels
- Manual override / programming support
- Relay cut-off and overload protection
- LED indicators for channel ON/OFF status
- Opto-isolated control inputs for safety
- Compatible with PLC, SCADA, Arduino, Raspberry Pi, ESP32, and automation controllers
- Cascadable and expandable for larger systems
- Industrial-grade terminals for secure wiring
Applications
- Commercial & industrial lighting control
- Building automation systems (BMS)
- Power load switching
- Motor and pump control
- HVAC equipment switching
- Automation control panels
- PLC and SCADA systems
- Electrical distribution boards
- Smart buildings and smart factories
- Machinery and industrial equipment control
- Energy management systems
- Relay logic and automation projects
Technical Specifications
| Specification | Details |
|---|---|
| Channels | 4 Independent Relay Outputs |
| Relay Type | Electromechanical Power Relay |
| Max Load Capacity | 20A per channel |
| Input Voltage | 110–230V AC, 50–60Hz |
| Control Voltage | Low-voltage logic / S-BUS compatible |
| Isolation | Opto-isolated control inputs |
| Mounting | DIN-Rail |
| Indicators | Individual channel status LEDs |
| Operation Mode | ON/OFF Switching |
| Protection | Overload & relay cut-off protection |
| Operating Temp | -10°C to +70°C |
| Integration | PLC, SCADA, Arduino, ESP32, Raspberry Pi |
| Upgrade Interface | USB (Firmware / Configuration) |
Why Choose the 4R Relay 4CH 20A DIN-Rail Module?
- Designed for high-current industrial switching
- Reliable and long-life relay operation
- Easy integration into automation and control panels
- Supports heavy electrical loads safely
- Compact, robust, and industry-ready design
- Ideal for professional automation & power control applications