Buy Relay Switch -

A dual-channel relay for controlling two circuits or motors like roller shutters. Often sold as a 2-pack for $70.50 $56.40 at Shelly USA . Automotive & 12V Relays

Built for panel mounting or DIN rail installation, these handle high voltage and current for industrial automation.

Supports higher loads up to 16A and includes built-in power monitoring. Available for $27.99 at Walmart . Shelly 2PM Gen4 Smart Relay Switch 2-Channel Shelly USA& more Go to product viewer dialog for this item.

A high-power SSR for AC output with no moving parts for high-speed switching. Available for $68.62 at 54 Energy .

Schneider Electric SimpliFi 20A 1.5HP Industrial Power Solution Grainger Industrial Supply& more Go to product viewer dialog for this item.

These are modules designed to interface with microcontrollers like Arduino or Raspberry Pi for low-voltage logic switching. Arduino Shield 4 Relays arduino.cc& more Go to product viewer dialog for this item.

An industrial solution for motor loads up to 1.5hp. Available for $41.30 at Grainger .