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4 Channel Solid State Relay

4 Channel Solid State Relay

Regular price Rs. 806
Regular price Rs. 999 Sale price Rs. 806
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  • This is a quad-channel relay module which can be used to activate up to four separate 240V AC.
  • It can control AC voltages between 100 and 240V up to 2A current.
  • The module can be controlled from a 5V digital source
  • Triggered at High level
  • Separate LEDs showing the status of each Solid-State Relay
  • TTL VoltageThis module is ideally suited to controlling larger voltages with project.

4 Channel Solid State Relay

4-Channel Solid-State Relay is somewhat similar to that of a mechanical relay & the difference is that there is no moving contact in a Solid-State Relay. Here we make use of a Phototrriac coupler to turn it ON and OFF. It finds its application in AC circuits as a TRIAC has got only limited applications in DC.

This module is ideally suited to controlling larger voltages with the project. This is a 4 channel relay module that can be used to activate up to 240V AC. This allows you to build in device control, operating lighting, or triggering systems when the module is triggered. With the labeled screw terminals it's easy to connect.

Solid State Relay - Solid State Relay (SSR) has advantages such as more efficient switching speeds, more stable operation against electrical noise, longer service life, resistance to physical vibrations and resistance to moisture, which distinguish this type of relay from ordinary mechanical relays. These relays are preferred in places that require fast and precise operation such as computer peripherals, medical devices.

Solid-state relays do have several advantages over mechanical relays. One such advantage is that they can be switched by a much lower voltage and at a much lower current than most mechanical relays. Also, because there are no moving contacts, solid-state relays can be switched much faster and for much longer periods without wearing out. This is a quad-channel relay module which can be used to activate up to four separate 240V AC. This allows you to build in device control, operating remote lights or triggering systems when the module is supplied the signal.The screw terminals are well labeled and definition of the units function is shown underneath.

Also, read our blog on What is a Relay detailing how it works, relay contact types, and different types of relays and their application.


  • Control outputs from programmable controllers and positioning controllers
  • Office Automation,
  • Home Automation

Package Includes:

  •  1 x 4 Channel Solid State Relay


Rated output load 100V ~ 240V AC
Rated input voltage 5V
Dimensions (mm) 55 x 57 x 22 (L x B x H)
Weight  5 grams

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1. What is a solid-state relay used for?

  • A solid-state relay (SSR) is an electrical switch that can be used to turn things on and off using another electrical input. Unlike electromechanical relays (EMRs), semiconductor switches and optoelectronics are used in SSRs instead of magnetism and moving contacts.

2. Are solid-state relays more reliable?

  • A solid-state relay has a longer electrical and mechanical lifetime compared to a mechanical relay. The time in the operation of an SSR determines its reliability, not the number of switching cycles.

3. How fast can solid-state relays switch?

  • Solid-state relays can switch up to 120 times per second, much faster than any electromechanical relay. When used in heating applications, fast cycling can significantly improve heater life by reducing thermal stress. SSRs can switch large loads using the ultra-sensitive input power.

4. What is the difference between Solid-state Relays and Contact Relays?

  • Solid State Relays use semiconductors for no-contact operation. In operation, Solid-state Relays are similar to Contact Relays (Electromagnetic Relays). Solid-state Relays, on the other hand, are made up of electronic components with no mechanical contacts. As a result, Solid-state Relays have a number of features that Contact Relays do not have.