Potential Relay Hvac

These relays meet all requirements for original equipment relays.

Potential relay hvac.

What a dip. Provide additional starting torque for residential and commercial ac units heat pumps refrigerators and freezers with start assist kits. 50 60 hz culus contact rating 35 amp 400 vac operating position tab up instructions and wiring diagram included in each relay class b insulation c o m p. Tomczyk will cover potential relay rating specifications and troubleshooting.

Always use the model number of the old relay when ordering a new one or cross reference it with a different manufacturer s relay. Supco 9068 potential relay 35 a at 277 vac contact rating 50 60 hz cycle 502 v continuous coil voltage 325 345 pick up min max 135 drop max 4 8 out of 5 stars 6 13 95 13. The potential relay is normally closed and it opens when a sufficient pickup voltage is present between the 5 and 2 terminals on the relay. This supco supr universal potential relay is used to start 1 phase capacitor type motors in air conditioning and refrigeration applications.

It is a replacement part with 110 to 270 vac pickup voltage. Dependable cooling equipment relays from grainger help to ensure air conditioning and refrigeration equipment starts and runs smoothly. To order call 800 726 9696. This pickup voltage is potential voltage that exists in the start winding when a motor gets above about 75 running speed and it is generated in the start winding by the motor itself not the capacitor.

Tomczyk is a professor of hvac at ferris state university big rapids mi and the author of troubleshooting and servicing modern air conditioning refrigeration systems published by esco press. Everyone in the field calls them potential relays in addition look at a schematic on an ac and you ll find pr potential relay. You sound like a real ahole. Potential relay start capacitor cooling equipment relays.