this 24V control voltage relay utilizes a solid-state PTC device and a snap-acting disc to ensure positive make/break action

this compact switch is a direct 3L09-27 cross for S1-026-32588-005

this part is built for field-service replacement within Robertshaw 1820 and 1830 series pilot assemblies

Key Benefits Precise Thermal Safety: Fixed 175°F trip point prevents heat exchanger overheating during low airflow conditions

replacing a 250V with a 330V)

Johnson Controls D-3073-600 Diaphragm Assembly Els PW 17895 this 24V control voltage relayThe Johnson Controls D 3073 600 Diaphragm Assembly is a high performance replacement component specifically engineered for the D 3070 Series of pneumatic actuators. Designed for heavy duty HVACR applications, this assembly ensures the precise modulation and stroke required to maintain system calibration and air tight operation. Constructed from durable, flexible elastomer materials, the D 3073 600 is built to withstand the repetitive cycling and