SG3-DA050-A2 Three phases Input 12-32VDC Output 48-480VAC 50A

Details of SG3-DA050-A2 Three phases Input 12-32VDC Output 48-480VAC Current 50A

SG3-DA050-A2 Three phases Input 12-32VDC Output 48-480VAC Current 50A Solid State Relay (SSR) is a three-phase SSR that uses DC input and AC output. In this case, the Solid State Relay (SSR) operates with an input of DC voltage (such as 3V, 5V, 12V or 24V DC) and an output of AC voltage (such as 220V AC or 380V AC) for controlling AC-powered loads.

How it Works

• Input (DC Control Signal): The DC Input triggers the SSR through a circuit that uses an Opto-isolator or LED to send signals to the control circuit of the SSR. When appropriate DC signal reaches the input, the SSR opens the Opto-isolator circuit which separates the control circuit voltage from the load (AC) circuit voltage. The input may have DC voltages in ranges such as 3V, 5V, 12V or 24V depending on the SSR model.
• Output (AC Load Control): When the SSR receives signals from the Input, it controls the AC-powered load circuits such as three-phase motors, heaters, or industrial electricity. In this operation, the SSR has a circuit that operates in either Random Turn-on or Zero Crossing mode depending on the design of the SSR. For DC input models, immediate circuit opening (Random Turn-on) may be observed.

Features and Details

• Input (Control): DC (3V, 5V, 12V, 24V)
• Output (Load): AC (220V, 380V, 480V)
• Circuit Opening: Random Turn-on or Zero Crossing (depending on design)
• Current Rating: Supports 10A, 20A, 30A, 40A depending on the model
• Circuit Isolation: Uses Opto-isolator to separate control circuit from load circuit
• No Moving Parts: No moving parts make it durable and long-lasting

Applications

The SSR with DC Input and AC Output is suitable for controlling AC loads using a DC control signal, which finds applications in various fields such as:

• Large electric motors (such as three-phase motors in factories)
• Industrial heaters like ovens, furnaces, or heating systems
• Temperature control systems requiring precise heat control
• Electric system controls in automatic devices using DC signals to switch AC loads on and off

Usage Examples:

• In industrial machinery, SSR can be used to control the operation of three-phase motors powered by AC electricity with a DC signal from PLC or microcontrollers.
• To control heating systems (Heater), SSR can be used to turn on and off heaters using a DC control signal from temperature sensors or automatic control systems.

Advantages

• No Wear and Tear: No moving parts like in traditional relays
• Precise Control:
• Durability: Longer lifespan compared to magnetic relay models

Tech Data SG3-DA050-A2 Three phases Input 12-32VDC Output 48-480VAC Current 50A