• High-performance 3-phase solid state relay (SSR) designed for industrial automation and heavy-duty AC load control
• Supports high current switching up to 90A, making it ideal for motors, heaters, and industrial machinery
• Wide input control voltage (80–280VAC) allows direct connection to AC control circuits without additional drivers
• Handles output voltage range 48–480VAC, suitable for most industrial three-phase systems
• Built with zero-cross switching technology, reducing electrical noise and extending load lifespan
• Features high-speed switching with no mechanical wear, ensuring long operational life compared to electromechanical relays
• Integrated aluminum heat sink base for efficient thermal dissipation and stable operation under load
• Compact, rugged design suitable for panel mounting in control cabinets
• Provides silent operation, ideal for noise-sensitive environments
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Technical Specifications
• Model: K3P40C90AA
• Brand: Kyotto
• Relay Type: 3-Phase Solid State Relay (SSR)
• Control Input Voltage: 80–280VAC
• Output Voltage: 48–480VAC
• Rated Load Current: 90A
• Number of Phases: 3 Phase
• Switching Type: Zero Cross
• Mounting Type: Panel Mount
• Cooling Method: Aluminum Heat Sink Base
• Insulation Resistance: ≥50MΩ
• Dielectric Strength: ≥2500VAC
• Operating Temperature: -30°C to +75°C
• Response Time: ≤10ms
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Key Features
• Heavy-Duty 90A Capacity → Suitable for industrial heaters, motors, and power systems
• Direct AC Control Input (80–280VAC) → No need for extra control circuits
• Silent Operation → No mechanical noise or sparking
• Long Lifespan → No moving parts → higher reliability
• Efficient Heat Dissipation → Built-in aluminum base improves performance under load
• Zero-Cross Switching → Minimizes electrical interference and surge currents
• Compact Industrial Design → Easy installation in panels
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Typical Applications
• Industrial heating systems (ovens, furnaces, plastic injection machines)
• 3-phase motor control
• HVAC systems
• Automation control panels
• Power distribution systems
• Lighting control (high power installations)
• CNC machines and industrial equipment