The H-308 is designed for fixed-frequency 50/60 Hz circuits

Does this include the entire actuator head

Industrial Durability: Robust material construction resists wear from steam

maintaining a fixed 1/8-inch spark gap to ensure consistent ignition cycles

this specific model does not have an "off" position

Johnson Controls T-4506-203 Thermostat Refrigerant The H-308 is designed forThe Johnson Controls T 4506 203 is a professional grade dual temperature pneumatic thermostat engineered for high performance HVAC control systems requiring direct acting logic. Designed for horizontal mounting, this unit facilitates seamless day night or heating cooling transitions with a 17 psig switchover pressure. With a robust 400 SCIM flow capacity and a highly efficient 20 SCIM air consumption rate, the T 4506 203 ensures precise terminal