Thermo King SB-210+ Trailer Refrigeration Unit

The Thermo King SB-210+ is an enhanced version of a highly popular trailer refrigeration unit, designed for greater operational efficiency and reduced fuel consumption. As part of the SB+ line, it addresses fleet demands for simpler operation, error reduction, and cost savings. This model is particularly suited for maintaining consistent temperatures in transit.

Key upgrades from earlier models include the Electronic Throttling Valve (ETV) for precise capacity modulation and the optional SmartPower 460 V electric standby, which allows the unit to run on shore power, further cutting diesel usage. It is powered by a TK486 diesel engine and uses R-404A refrigerant, controlled by the SR-2 microprocessor with OptiSet profiles.

Available in new and inspected used conditions, the SB-210+ is listed at $6,000. The ETV ensures tighter temperature control by continuously metering refrigerant flow, minimizing overshoots and reducing compressor cycling. The SmartPower option offers significant fuel savings when the trailer is stationary, making it an economical choice for regional and long-haul applications.