Do I need a relay

NYREDS

Crowing
12 Years
Jan 14, 2008
5,644
475
303
Not being sure what a relay is I don't understand the question. That said, if it's wired so the thermostat operates the heat source it will work.
 

JimnTer

In the Brooder
7 Years
Feb 16, 2012
84
1
29
How many amps is your microswitch rated for? It will say on the side of it. 2 X100 watt bulbs draws about 1.67 amps at 110 volts. If your switch is rated lower than 1.67 amps at 110 volts, you will need a relay, but I would say if its rated for less than 2 amps you should add the relay. If you are pushing the switch near its maximum capacity, it will shorten its life. If the switch is rated for more than 2 amps at 110v there is no advantage to adding a relay.
 

moetrout

Songster
12 Years
May 5, 2010
843
50
236
Milan, MI
How many amps is your microswitch rated for? It will say on the side of it. 2 X100 watt bulbs draws about 1.67 amps at 110 volts. If your switch is rated lower than 1.67 amps at 110 volts, you will need a relay, but I would say if its rated for less than 2 amps you should add the relay. If you are pushing the switch near its maximum capacity, it will shorten its life. If the switch is rated for more than 2 amps at 110v there is no advantage to adding a relay.
I agree with this advice. I use to work for Honeywell and we often use to use relays to separate the programmable thermostats from the furnace control so I have some experience in this. If you need any help wiring it PM me and I'll draw up a schematic for you. I suspect, since you knew to ask about using a relay, you already have this covered.
 

New posts New threads Active threads

Top Bottom