Thermo King 41-5246 Low Pressure Switch Assembly

The Thermo King 41-5246 is a low pressure cutout switch (LPCO) designed for transport refrigeration systems. It functions as a safety control to prevent compressor operation under insufficient refrigerant charge or low suction pressure conditions. The switch interrupts the compressor clutch circuit when suction pressure drops below the calibrated cut-out threshold, protecting the compressor from damage due to loss of lubrication or icing. This component is engineered to OEM specifications for direct replacement on Thermo King refrigeration units. It features a pressure-sensitive diaphragm mechanism with electrical contacts rated for the unit control circuit voltage. The switch body is constructed from corrosion-resistant materials suitable for the refrigeration environment. The OEM cross-reference part number is 1E01617G01. Applications span the T-Series (TS-200, TS-300, TS-500, TS-600) and MD/T-Series (MD-100, T-600, T-800, T-1000) product lines.