Mini Zettler Power relay with 115 volt coil. Rated at 20 Amp and is a SPDT style switch. Also known as an "Ice Cube Relay" or T91. Normally found inside of your control box in addition to your circuit board. Many manufacturers used these to add more functionality than the circuit board can handle.
AKA/Replaces: 35-0002, 410128, 5-00-0039, G7L-1A-TUB-J-CB-AC24, 160050007, 350002, 49171T200, AZ2280-1C-120A, HAT903CSAC120, HATF903CSAC120, HDI120AC30PMSF, PC721C, T91S5A32120, 9170-21P, 9170-65, 9185-94
AKA/Replaces: 35-0002, 410128, 5-00-0039, G7L-1A-TUB-J-CB-AC24, 160050007, 350002, 49171T200, AZ2280-1C-120A, HAT903CSAC120, HATF903CSAC120, HDI120AC30PMSF, PC721C, T91S5A32120, 9170-21P, 9170-65, 9185-94