Volvo RWD 200 Forum

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thermal Switch 200 1983

posted by  someone claiming to be Skip on  Sun Mar 30 08:28 CST 2008 [RELATED]

I'm converting my '83 to an electric fan and have managed to pick up a Volvo NOS switch to control the fan. It consists of a short (4" ?) pipe that splices into the lower radiator hose and a thermal switch that screws into a bung on the pipe. I'm not familiar with the switch and wonder if anyone knows the current capacity of the unit. Usually I use a relay to control the 12V to the fan but if the switch has 20 amp capacity, I can skip that. Thanks

Skip

'02 S60
'83 242TI Flathood
'80 242 DL








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thermal Switch 200 1983

posted by  stoney on  Sun Mar 30 15:04 CST 2008
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last visit: Wed Oct 22 17:48 CST 2014
[RELATED]

Std 20 Amp Bosch or Hella relay is the norm. Feed the relay with 12v from the supply panel just aft of the relay rail on left fender inside face.








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thermal Switch 200 1983

posted by  Stickbuilder on  Sun Mar 30 09:23 CST 2008
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last visit: Fri Oct 24 03:31 CST 2014
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Regardless of the rating of the switch, you should use it to only close the contact on a relay, and use a relay to power up your fan. Your wiring will thank you for it. I just checked my switch for you, and there is only the #8 stamped on it. No rating number. Sorry

Bill








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thermal Switch 200 1983

posted by  Stickbuilder on  Sun Mar 30 09:20 CST 2008
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last visit: Fri Oct 24 03:31 CST 2014
[RELATED]

Regardless of the rating of the switch, you should use it to only close the contact on a relay, and use a relay to power up your fan. Your wiring will thank you for it.

Bill







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