Fofek SSR-40DA Input 3-32VDC Output 24-380VAC Solid State Relay Documentation

Input voltage range

3-32VDC

Input current

3-10mA

Input impedance

1k

Output Characteristics:

Output voltage range

24-380VAC

Output current

40A

Output power

1000VA

Switching Characteristics:

Switching frequency

50/60Hz

Isolation Characteristics:

Protection Features:

Turn-on time	10ms
Turn-off time	10ms
Input-to-output isolation voltage	2500VAC
Input-to-output isolation resistance	100M

Overvoltage protection

Yes

Overcurrent protection

Yes

Operating Conditions:

Short-circuit protection

Yes

Operating temperature range

-40C to +80C

Storage temperature range

-40C to +125C

Humidity

5-95% RH (non-condensing)

Physical Characteristics:

Package type

DIN rail mount

Dimensions

60mm x 35mm x 105mm (L x W x H)

Weight

approximately 250g

Certifications and Compliance:

CE marked

RoHS compliant

UL94-V0 certified

Application Notes

The Fofek SSR-40DA is suitable for various applications, including

Industrial automation

HVAC systems

Lighting control systems

Power supplies

Medical devices

Audio and video equipment

Precautions and Safety Considerations

Ensure proper heat dissipation to avoid overheating

Use a suitable heatsink if the relay is operated near maximum load

Avoid exposure to moisture and dust

Use proper electrical connections and insulation to prevent electrical shock

By following proper installation, operation, and maintenance guidelines, the Fofek SSR-40DA solid-state relay provides a reliable and efficient solution for controlling AC loads in a wide range of applications.

Pin Configuration

Fofek SSR-40DA Solid State Relay Documentation
Overview
The Fofek SSR-40DA is a solid state relay (SSR) module that can handle input voltages from 3-32VDC and output voltages from 24-380VAC. It is a popular choice for IoT and automation projects that require reliable switching of AC loads.
Pinout Description
The SSR-40DA has a total of 6 pins, which are described below:
Pin 1: VCC (Input Voltage)
Description: Positive input voltage supply (3-32VDC)
Function: Provides power to the internal circuitry of the SSR
Connection: Connect to a DC power source (e.g., battery or regulator output) with a voltage between 3-32VDC
Pin 2: IN (Input Control)
Description: Input control signal ( logic level: 0-5V)
Function: Controls the switching of the SSR (ON/OFF)
Connection: Connect to a digital output from a microcontroller or other control device
Pin 3: GND (Input Ground)
Description: Input ground connection
Function: Provides a return path for the input control signal and power supply
Connection: Connect to the ground of the control device and power source
Pin 4: AC OUT (Output)
Description: Output AC voltage (24-380VAC)
Function: Supplies the output AC voltage to the load
Connection: Connect to the AC load (e.g., lamp, motor, etc.)
Pin 5: Neutral (Output Neutral)
Description: Output neutral connection
Function: Provides a return path for the output AC voltage
Connection: Connect to the neutral wire of the AC load
Pin 6: GND (Output Ground)
Description: Output ground connection
Function: Provides a safety ground connection for the output AC voltage
Connection: Connect to the ground wire of the AC load and the system ground
Connection Structure
To connect the Fofek SSR-40DA, follow these steps:
1. Connect the input power source (VCC) to Pin 1. Ensure the voltage is within the specified range (3-32VDC).
2. Connect the input control signal (IN) to Pin 2. This can be a digital output from a microcontroller or other control device.
3. Connect the input ground (GND) to Pin 3. This provides a return path for the input control signal and power supply.
4. Connect the output AC voltage (AC OUT) to Pin 4. This supplies the output AC voltage to the load.
5. Connect the output neutral (Neutral) to Pin 5. This provides a return path for the output AC voltage.
6. Connect the output ground (GND) to Pin 6. This provides a safety ground connection for the output AC voltage.
Important Notes
Ensure the input control signal is a logic level signal (0-5V) to prevent damage to the SSR.
Use a suitable heat sink or thermal management system to prevent overheating of the SSR.
Ensure the load is within the specified current rating of the SSR to prevent overheating or damage.
By following these guidelines, you can safely and effectively use the Fofek SSR-40DA solid state relay in your IoT and automation projects.

Code Examples

Fofek SSR-40DA Solid State Relay Documentation

Overview

The Fofek SSR-40DA is a solid-state relay (SSR) that provides a safe and efficient way to control AC loads using a DC signal. It features an input voltage range of 3-32VDC and can switch AC loads with a voltage range of 24-380VAC. This relay is ideal for applications that require high reliability, low power consumption, and fast switching times.

Pinout

The Fofek SSR-40DA has a total of 4 pins:

VCC: Input voltage (3-32VDC)
 IN: Input signal (active low)
 AC1: AC load positive terminal
 AC2: AC load negative terminal

Example 1: Controlling an AC Fan with an Arduino

In this example, we will use an Arduino Uno to control an AC fan using the Fofek SSR-40DA.

Code:
```cpp
const int relayPin = 2;  // Choose a digital pin on the Arduino

void setup() {
  pinMode(relayPin, OUTPUT);
}

void loop() {
  digitalWrite(relayPin, LOW);  // Turn the fan on
  delay(5000);  // Wait for 5 seconds
  digitalWrite(relayPin, HIGH);  // Turn the fan off
  delay(5000);  // Wait for 5 seconds
}
```
Connection:

Connect the VCC pin of the SSR-40DA to a 5V power source (e.g., Arduino's 5V pin)
 Connect the IN pin of the SSR-40DA to digital pin 2 of the Arduino
 Connect the AC1 and AC2 pins of the SSR-40DA to the fan's power terminals

Example 2: Controlling an AC LED Strip with a Raspberry Pi

In this example, we will use a Raspberry Pi to control an AC LED strip using the Fofek SSR-40DA.

Code:
```python
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
relay_pin = 17  # Choose a GPIO pin on the Raspberry Pi

GPIO.setup(relay_pin, GPIO.OUT)

while True:
    GPIO.output(relay_pin, GPIO.LOW)  # Turn the LED strip on
    time.sleep(5)  # Wait for 5 seconds
    GPIO.output(relay_pin, GPIO.HIGH)  # Turn the LED strip off
    time.sleep(5)  # Wait for 5 seconds
```
Connection:

Connect the VCC pin of the SSR-40DA to a 3.3V or 5V power source (e.g., Raspberry Pi's GPIO pins)
 Connect the IN pin of the SSR-40DA to GPIO pin 17 of the Raspberry Pi
 Connect the AC1 and AC2 pins of the SSR-40DA to the LED strip's power terminals

Important Notes

Make sure to connect the SSR-40DA to a suitable power source that can handle the current requirements of the AC load.
 Ensure the input signal to the SSR-40DA is active low (i.e., the relay turns on when the input signal is LOW).
 Use proper electrical safety precautions when working with AC voltages to avoid electrical shock or injury.