Supco SL5709 Refrigerator Defrost Thermostat Replacement for 4751C

The Supco SL5709 is a universal refrigerator defrost thermostat designed to replace OEM part number 4751C in commercial refrigeration systems. This thermostat is compatible with Chandler, Larkin, Bohn, and Climate Control equipment, making it an ideal replacement component for walk-in coolers, reach-in refrigerators, and other commercial refrigeration units.

Key Specifications:

• Temperature range: 55°F to 35°F (opens at 55°F, closes at 35°F)
• Switch configuration: SPDT (Single Pole Double Throw)
• Amperage rating: 25 amps resistive load
• Direct replacement for OEM part 4751C
• Universal fit for multiple commercial refrigeration brands

This defrost thermostat plays a critical role in the defrost cycle by sensing evaporator coil temperature and switching the system between cooling and defrost modes. When the evaporator temperature drops to 35°F, the contacts close to initiate or continue the cooling cycle. When the temperature rises to 55°F during defrost, the contacts open to terminate the defrost cycle and return to normal refrigeration operation.

Supco replacement parts are engineered to meet or exceed OEM specifications, ensuring reliable performance and long service life in demanding commercial refrigeration applications.