Amazon.com: KNACRO 1-Channel 30A High Current 5V Contactor Relay Switch Power Switch DC Power Switching Control Board Module Electrical Relay switches for Cooler Heater Refit Water Heater Control (DC 5V) : Electronics
ABB TAL9-40-00RT 600V MAX 23-42,5V DC CONTACTOR | Premier Equipment Solutions, Inc.
Clk-15jf40c 5V Coil DIN Contactor 2 Pole 2no 30A - China Contactor 32 AMP, 30 AMP 2 Pole Contactor | Made-in-China.com
Amazon.com: KNACRO 1-Channel 30A High Current 5V Contactor Relay Switch Power Switch DC Power Switching Control Board Module Electrical Relay switches for Cooler Heater Refit Water Heater Control (DC 5V) : Electronics
Mega 2560 + MPU5060 + HD44780 + 4 chanel relay module + 400V three-phase motor - Motors, Mechanics, Power and CNC - Arduino Forum