AQUASTAT RELAY (661655)

Combines high-limit protection with switching relay control of burner and circulator motors
Includes transformer and accessory terminals for adding a remote low limit controller
Horizontally mounted
High limit opens burner circuit only
Max pressure on immersion well 255 psi
Requires a 24V thermostat (two-wire)
Dimensions 4-516″H x 6-18″W x 3-18″D
Range 120°F to 240°F
Differential 8F fixed