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A relay is an electrically controlled switch. Electromechanical relays use an electromagnet to activate mechanical contacts, solid-state relays use semiconductor switches.

0 votes
1 answer
464 views

Circuit to control a motor using relays

I have a door actuator motor running at 12V and a 4 relay board using ESP8266 (https://www.banggood.com/AC-or-DC-Power-Supply-ESP8266-WIFI-Four-way-Relay-Module-ESP-12F-Development-Board-Secondary-Development-p …
Sorin Trimbitas's user avatar
0 votes
1 answer
770 views

How to use LM56 to switch on/off a 2kW heater

Is it possible using a relay or optocuplor? I don't have experience with high-power devices. Thanks! …
Sorin Trimbitas's user avatar
1 vote
3 answers
3k views

Control a water pump with a relay board

I have a water pump rated 650 W and the attached relay board. Is it ok to modify a power socket to use one relay to control the phase and one to control the neutral wire? Thank you! …
Sorin Trimbitas's user avatar