View Full Version : Maximum rating of the thermostat
gregpyke
Apr 3, 2008, 10:44 AM
What device is required when the total connected load exceeds the maximum rating of the thermostat?
Stratmando
Apr 3, 2008, 10:48 AM
An extra relay, to power the contactors, Thermostat will activate low current or sensitive relays in turn to control the contactors.
Update, Are you talking about 24 volt control or line voltage(120 or 240)?
gregpyke
Apr 3, 2008, 10:59 AM
An extra relay, to power the contactors, Thermostat will activate low current or sensitive relays in turn to control the contactors.
Update, Are you talking about 24 volt control or line voltage(120 or 240)?
I'm talking about 120
Stratmando
Apr 3, 2008, 02:24 PM
Still a relay. 120 volt coil Relay or Contactor/Contacts should be rated for the load, 20 or 30 Amps, thermostat will connect coil voltage to relay or contactor, relay or contactor will handle Load.
Need help with wiring?
gregpyke
Apr 3, 2008, 02:41 PM
Still a relay. 120 volt coil Relay or Contactor/Contacts should be rated for the load, 20 or 30 Amps, thermostat will connect coil voltage to relay or contactor, relay or contactor will handle Load.
Need help with wiring?
No thanks, I'm good.
Stratmando
Apr 4, 2008, 05:36 AM
Good Deal, the Thermostat should only see the load of the relay. Take Care