LY4NJ AC220V 3PDT 11P Power Relay for General Use 5A 250VAC / 28VDC

Description

LY4NJ AC220V Coil 3PDT 11P Power Relay for General Use 5A 250VAC / 28VDC

Product Description

• 14 terminals, type 4PDT 4NO 4NC, plastic housing, built-in red LED indicator.
• Can automatically regulate, protect and transform the electric circuit.
• Widely used in remote control, communication, automatic control system, electronic equipment, etc.

• Product name: electromagnetic relay;
• Model number: LY4NJ;
• Coil voltage: AC 220 V
• Contact capacity: contact capacity; 10 A 240 V AC / 28 V DC: 10 A 240 V AC / 28 V DC;
• Type: 4PDT
• Number of Terminals: 14;
• Mounting rail type: 35 mm DIN rail guide;
• Mounting hole dimensions: 6 x 4 mm / 0.24 “x 0.16” (L * W)
• Overall dimensions (approx.): 75 x 45 x 65 mm / 2.7″ x 1.3 “x 2.6” (L * W * H);
• S Material: plastic;
• Main Color: Black, Light Blue
• Net weight: 139g;
• Contents of the package: 1 x electromagnetic relay

We have available the technical sheet of all components, should it not be present in the product download card, send us a message from the contact us form and we will publish it as soon as possible on our website.

Tutorial: How to use LY4NJ AC220V

This relay is ideal for controlling electrical devices from 5A to 250 V AC or 28 V DC. Useful for beginners and intermediates in electronics.

What you need

• LY4NJ AC220V
• Arduino
• Power cable
• Resistor

Steps

1. Check the datasheet specifications for current and voltage.
2. Connect the coil to the Arduino control pin.
3. Connect the relay contacts to the devices to be controlled.
4. Use a resistor to protect the coil.
5. Write a simple sketch to control the relay.
6. Test the relay with a button for manual control.
7. Check the stability of the relay in various activation cycles.
8. Adapt the relay to a specific project.

Example code

```void setup() { pinMode(2, OUTPUT);}void loop() { digitalWrite(2, HIGH); delay(5000); digitalWrite(2, LOW); delay(5000);}```

Mini project

Build an automatic lighting system. Connect a relay to a light sensor and an LED.

Common mistakes

• Do not use voltages higher than 250 V AC or 28 V DC.
• Do not connect the coil directly to the Arduino without a resistor.
• Do not use currents higher than 5A.
• Do not use the relay to control devices that exceed 250 V AC or 28 V DC.

Recommended accessories

• Light sensor
• LED
• Power cable
• Resistor

Frequently asked questions

Can I use this relay to control devices with voltages different from those specified?
Check the datasheet for voltage and current specifications before use.

Which resistor to use for the coil?
Use a 1 kΩ resistor to limit the current.

Can I use this relay to control AC and DC voltage devices?
Yes, but make sure the voltage is within the specifications.

Which Arduino pin to use for the relay?
Use a digital pin such as D2 for control.