SG3-AAR1HP F/R-A2 Three phases Input 80-280VAC Output 48-480VAC 0.75KW Random

Details of SG3-AAR1HP F/R-A2 Three phases Input 80-280VAC Output 48-480VAC 0.75KW Random

SG3-AAR1HP F/R-A2 Three phases Input 80-280VAC Output 48-480VAC 0.75KW Random Solid State Relay (SSR) Three-phase SSR

Working Principle

Solid State Relay (SSR) is an electronic device that functions as an electrical switch, controlling the opening and closing of circuits without moving parts like mechanical relays (Electromechanical Relay - EMR). It uses semiconductor properties such as Triac, SCR, Opto-isolator to control the flow of electric current.

• Input (Control): Uses AC voltage signal to trigger internal circuitry, e.g., 90–280VAC
• Output (Load): Works with AC-powered loads such as motors, heaters, etc.
• Random Turn-on: Refers to immediate circuit activation upon receiving control signals without waiting for zero crossing — suitable for loads requiring fast response like inductive load (motors)

Features and Details

• Type of Control Voltage (Input) AC 90–280V or AC 100–240V
• Type of Load Voltage (Output) AC 24–480V or AC 24–600V
• Current Rating 10A, 25A, 40A, 60A depending on model
• Random Turn-on Output Operation (immediate activation without waiting for zero crossing)
• Circuit Isolation Uses Opto-isolator to isolate control circuit from load circuit
• Durability Long-lasting with no wear and tear or sparking components

Applications

The three-phase SSR is suitable for high-power loads, especially in industrial electrical systems such as:

• Large heaters (Heaters)
• Three-phase motors (Three-phase Motors)
• Furnaces, Industrial Ovens
• PID temperature control systems
• Bright lighting systems requiring fast control

Advantages

• No operational noise
• Rapid switching response in milliseconds
• No sparking or wear and tear
• Durable, long-lasting operation

Cautions

• Must have a heat sink or cooling system
• Not tolerant of overcurrent like mechanical relays; should include circuit breakers or protective devices
• Random Turn-on may not be suitable for certain types of loads (consider zero crossing for some load types)

Tech Data SG3-AAR1HP F/R-A2 Three phases Input 80-280VAC Output 48-480VAC 0.75KW Random