Johnson Controllers Mechanical Temperature Controller A19ZBC-2C Remote Bulb, SPDT, Heat & CoolThe A19ZBC is used for general purpose operating temperature control applications. This mechanical control has a single-pole, double-throw contact unit and a temperature range of 0 to 70°F (-15 to 25°C). Product Specifications BRANDJohnson Controls CAPILLARY LENGTH FEET6 BULB SIZE INCHES19/64 x 3-1/8 DIFFERENTIAL TEMPERATURE °F20 to 60 TEMPERATURE CONTROL RANGE °F45 to 85 VOLTAGE240 / 120 NEMA RATING1 STAGESSingle SWITCH ACTIONSPDT TYPEHeat & Cool LISTING, RATING, CERTIFICATIONUL Listed LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERA19ZBC-2C