contactors

Hello Everyone, I'm currently working on a project where I aim to remotely control a 3-phase 22kW water pump motor using an Arduino microcontroller. To achieve this, I'm considering using relays as ON/OFF switches between the Arduino and a contactor that will ultimately control the motor...

Hello, While relays have a size advantage, an electrical engineer from a partner team tells me we should use contactors instead of relays for our ~7kW (single phase) and 22kW (3 phase) charge points. He said that the relays, when operating for long periods will have a higher chance of failing...

Hey I'm a NOOB trying to complete a DIY project of hooking up a thermostat to my garage heater. I am following this video... I ordered the exact contactor and transformer linked in the comments. I can't get the contactor to close. The highest voltage I have seen from the transformer is...

Hello! Im an indoor electrican apprenticeship student and I need help with solving a task we we're given, since I can't seem to figure it out. A little context too: on the photo you can see a motor diagram, the thing is, when u press both the start buttons and all the contactors go down, you...