Relays: Difference between revisions
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5v-15A 120v relay boxes - [https://www.amazon.com/Anfukone-JQC-3FF-S-Z-Electromagnetic-Power-Relay/dp/B081H4BP1M/ref=sr_1_9?dchild=1&keywords=5v+15a+relay&qid=1616137806&s=industrial&sr=1-9] | 5v-15A 120v relay boxes - [https://www.amazon.com/Anfukone-JQC-3FF-S-Z-Electromagnetic-Power-Relay/dp/B081H4BP1M/ref=sr_1_9?dchild=1&keywords=5v+15a+relay&qid=1616137806&s=industrial&sr=1-9] | ||
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*[[Solid State Relay]] | |||
Revision as of 07:14, 19 March 2021
- common relay and pinout - [1]
Power Draw
A solid state relay will draw .1W on the driving side, but the load side loses significant power (1V drop). 20W loss when running a 20A load - significant through the day. If solar, that is good, but if we are night-time converting, power loses are not so good at this level.
May want a mechanical relay. Sainsmart relay is 15-20mA at 5v to energize. And no voltage drop on the power side, as it's not going through a transistor like in a solid state relay.
5v-15A 120v relay boxes - [2]