Ranco A30-X000451-070 Cycling Temperature Controller

Ranco A30-X000451-070 Cycling Temperature Controller is an adaptable replacement cycling control from the A30 family, designed for room air conditioners (RAC) and other cooling equipment that rely on a simple on/off cycling strategy. It uses a capillary-sensing element with a 36-inch capillary and a SPST switch to cycle the compressor as the evaporator temperature reaches its setpoint, offering a fixed dial range of 58 to 86 °F and a 5 °F differential. This straight-mount unit is commonly used as an OEM-style drop-in replacement for older RAC controls and aligns with A30-X451 specifications. Some catalogs show cross-compatibility notes with GE WJ28-series components, aiding fitment in legacy equipment.