Catalog > Internet of Things (IOT) Related Products > More Platforms 4 Channel Relay Shield 4 Channel Relay Shield BSK 4 CHANNEL RELAY SHIELD COMPATIBLE WITH ARDUINO 4 CHANNEL RELAY SHIELD Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview If you want to drive an inductive load, or AC, or DC, or mysterious load, you can't beat a relay. It just works. Its not fast, but it sure is powerful.This shield plugs directly onto a standard Arduino footprint device, and you have 4 relays at your command.Note: Please ensure the back of the board is insulated before attaching to an Arduino main board. The green terminal blocks can short out against a metallic surface like the top of the USB connector! Specifications Operating Voltage : 5VOperating Current : 130mAMax Switching Current : 3APower voltage : 4.75~5VPower consumption (at 5V) : 180mALimit relay operation to no more than 30 cycles per minuteRelay maximum ratings : AC 125V@3A, DC 24V@3ADimension : 70 x 54 x 26mm (2.76 x 2.13 x 1.02")Weight : 40g