Fridge Thermostet SWTB-R130A

Description

Product Description: SWTB-R130A Push-Button Defrost Thermostat The SWTB-R130A (also frequently labeled as the STB-R130A) is an electro-mechanical capillary temperature controller. It features a gas-vapor filled capillary tube probe that monitors the physical temperature of the cooling plate. Its standout design feature is the integrated keypad/push-button manual defrost function. When thick ice blankets the freezer compartment, the user presses the button located in the center of the dial shaft. This action mechanically locks the electrical contacts open, completely disabling the compressor. The system remains off until the frost completely melts and the evaporator plate warms up to a safe reset temperature, causing the button to automatically pop back out and resume standard cooling cycles. Key Technical Features Defrost Control System: Manual push-button activation with a built-in automatic thermal spring release. Temperature Operational Window: Typically calibrated for a range spanning from −2 ∘ C down to −24 ∘ C at its deepest cutout setting. Electrical Capacity: Built for standard 125V/250V AC household electrical configurations. Terminal Interface: Built with a multi-pin male spade configuration to handle the main compressor line interruption and ground loops. Compatible Mechanisms & Appliances Because it relies on physical fluid expansion rather than computer microprocessors, the SWTB-R130A serves as a highly reliable universal replacement standard for the following equipment: 1. Toshiba & LG Single-Door Refrigerators (Primary OEM Match) Compatible Mechanisms: Conventional 1-door direct-cool refrigerators manufactured by Toshiba, LG, Mitsubishi, and regional brands like Orient. Application: Installed right behind the temperature adjustment dial inside the main cabinet. The coiled capillary wire sensor must be physically clamped firmly against the freezer’s evaporator plate to correctly gauge the surface temperature and manage ice levels. 2. Manual-Defrost Compact Mini-Fridges & Chillers Compatible Mechanisms: Small under-counter office bar-fridges and countertop refreshment coolers. Application: Provides an affordable, compact layout that allows users to manually trigger a defrost cycle without the appliance requiring complex electronic control boards or electric heater loops. 3. Fixed-Speed Hermetic AC Compressors (Direct Line Interruption) Compatible Components: Standard single-phase 220V–240V inductive refrigeration compressors that use external PTC start relays and thermal overload protectors. Application: The internal heavy-duty switch contacts are structurally rated to directly break the raw high-voltage current feeding small compressor motors. (Note: It cannot be used to interface with or directly cycle modern 3-phase, variable-speed Digital Inverter compressors). 4. Direct Replacement Component Families In the global appliance repair market, the SWTB-R130A is widely cross-compatible with or replaces the following architectures: Interchangeable Models: STB-R130A, AWTB-R130, Mingtong SWTB-R130A, and matching Ranco or Varifix single-door push-button defrost kits.