2 Channel Solid State Relay Module

The 2 Channel Solid State Relay Module has two solid-state relays (SSRs) that let a microcontroller switch two separate AC loads, such as lamps, heaters or fans. SSRs have no moving contacts, so they switch silently, do not wear out from clicking and can be switched more often than mechanical relays.

2 Channel Solid State Relay Module Specifications

• Channels: 2 solid-state relays
• Switching: electronic, no moving contacts, silent operation
• Isolation: optical isolation inside each SSR between control and load
• Load type: AC loads
• Control inputs: one input per channel from a microcontroller pin
• Load terminals: screw terminals for each channel

2 Channel Solid State Relay Module Applications

• Switching lamps and small AC appliances from Arduino or ESP32
• Heater and temperature control projects
• Home automation where silent switching is preferred
• Frequent on/off switching that would wear out a mechanical relay

What's in the Box

• 1 × 2-channel solid state relay module

Tip: Check the voltage and current ratings printed on the SSRs before connecting a load. SSRs leak a small current when off, so very low-power loads such as LED bulbs may glow faintly, and AC-output SSRs cannot switch DC loads.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.