SG1-DA125-A2 Single phases Input 4-32VDC Output 48-480VAC 125A

Details of Solid State Relay Model : SG1-DA125-A2 Single phases Input 4-32VDC Output 48-480VAC Current 125A

Working principle of Single Phase Solid State Relay (SSR) Model : SG1-DA125-A2 Single phases Input 4-32VDC Output 48-480VAC Current 125A

• Input DC / Output AC Working Principle
• Input (Input DC): Accepts DC voltage (e.g., 3–32VDC) to command the SSR to operate
• When DC power is applied to the input terminal → It triggers the SSR to "close" the circuit at the output terminal
• Isolation:
• Uses Opto-Isolator (PhotoCoupler) to separate the control circuit (DC) from the power circuit (AC) for safety
• Output Drive Phase: Typically uses Triac or SCR to switch AC current circuits on and off for loads
• When the input is activated → The output will "connect" allowing AC current to flow to the load. General features of SSR (Input DC / Output AC)
• Control Voltage (Input Voltage) 3–32VDC (e.g., 5VDC, 12VDC, 24VDC are applicable)

Features of Solid State Relay Model : SG1-DA125-A2 Single phases Input 4-32VDC Output 48-480VAC Current 125A

• Output Voltage (Output Voltage) 24–480VAC (depending on model)
• Maximum Load Current 2A–100A (depending on model)
• Frequency 50/60Hz
• Loads Heaters, lamps, AC fans, AC motors (small to medium size)
• Silent operation No noise because there are no mechanical contacts
• Requires a Heat Sink if high load is used Must provide adequate cooling. Advantage Control AC loads with simple DC control circuits
• No mechanical parts → Long service life
• Spark-free operation