• High-performance single-phase solid state relay designed for reliable switching of AC loads in industrial and commercial environments
• Supports low-voltage DC control input (4–32VDC), compatible with PLC systems, Arduino boards, and industrial controllers
• Capable of handling high current loads up to 40A with output voltage range of 24–280VAC
• Built with zero-cross switching technology to reduce electrical noise and improve load protection
• Solid-state design eliminates mechanical contacts, ensuring long service life and maintenance-free operation
• Integrated aluminum base plate enhances heat dissipation for stable performance under continuous load
• Compact and robust construction suitable for panel mounting in control cabinets
• Silent operation with no arcing or acoustic noise
⸻
Technical Specifications
• Model: KD20C40AX
• Brand: Kyotto
• Relay Type: Single Phase Solid State Relay (SSR)
• Control Input Voltage: 4–32VDC
• Output Voltage: 24–280VAC
• Rated Load Current: 40A
• Number of Phases: 1 Phase
• Switching Type: Zero Cross
• Mounting Type: Panel Mount
• Cooling Method: Aluminum Base Plate
• Insulation Resistance: ≥50MΩ
• Dielectric Strength: ≥2500VAC
• Operating Temperature: -30°C to +75°C
• Response Time: ≤10ms
⸻
Key Features
• Supports direct control from microcontrollers and PLC systems
• High current capacity suitable for demanding industrial applications
• Long lifespan due to absence of mechanical switching components
• Silent and spark-free operation
• Reduced electromagnetic interference with zero-cross switching
• Efficient thermal management for reliable long-term use
• Compact size for easy integration into control panels
⸻
Typical Applications
• Industrial heating systems and temperature controllers
• Lighting control systems
• Motor and pump switching (medium loads)
• Automation control panels
• PLC-based switching systems
• Smart control and IoT projects
• CNC machinery and industrial equipment