High Limit Aquastat Controller, 100-180-Degree(F) Range, 5-Degree(F) Differential, L8100B1128

L8100A,B, and C are immersion type controllers for regulating and limiting the tank temperature in water heaters. As the water temperature rises past the setpoint, the controller switches off the gas valve. Specifications: Insulation Depth: 1-1/2 in. Bulb Size: 3/8 in. Capillary Length: 39 in. Switching Action: SPST, contacts break on temperature rise. Electrical Ratings (millivolt): 2A maximum at 24 Vac. Differential Temperature (F) Controller: 5 F, fixed. Energy Cutoff Switch: 20 F, fixed. Maximum Ambient Temperature (F) Maximum Tank: 210F Temperature Rating (ECO) Energy Cutoff: 200 F Mounting: Immersion Well Features: Regulates temperature and provides energy cutoff (ECO) action on a temperature rise past the setpoint. Includes a second sensing element that senses average water temperature to minimize stacking. Fluid-filled element operates Micro Switch? SPST snap-acting switch. ECO switch interrupts the thermocouple circuit or main valve before tank reaches 210 F (99 C) maximum temperature. Includes factory-installed immersion well on controller. Internal adjustment screw. Special switch terminal provides three-wire hookup from Aquastat® controller to gas valve.