I need a Time Delay Relay circuit, which will keep a 120VAC fan, working for approximately 3 minutes, after the 230VAC is turned off. The 230 VAC input is controlled by a front panel DPST rocker switch, which has two unused input solder terminals, which will still have 230 VAC present, when the DPST rocker switch is turned OFF.
1. I don't want to change the fan, which is 120 VAC, that is powered by a 120VAC tap on the High Voltage Transformer. However the fan could be wired to be permanently connected to the output of the Time Delay Relay. Some one once suggested that.
2. I don't want to use a momentary switch to trigger the Time Delay Relay.
So what I need is a schematic, and a parts list, so I can breadboard the circuit, and connect it to the 120 VAC fan.
Howard Walker
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1. I don't want to change the fan, which is 120 VAC, that is powered by a 120VAC tap on the High Voltage Transformer. However the fan could be wired to be permanently connected to the output of the Time Delay Relay. Some one once suggested that.
2. I don't want to use a momentary switch to trigger the Time Delay Relay.
So what I need is a schematic, and a parts list, so I can breadboard the circuit, and connect it to the 120 VAC fan.
Howard Walker
[Email was deleted, please don't post Email address on forum, it may bring Spambot to forum and your Email address.]