HBS2KCB4SA055C is a single-pole standard precision snap-acting switch from the HB Series, designed for reliable switching in industrial control, thermostat, and motor applications. The switch features a sealed actuator and case that protects against airborne contaminants and splashing liquids, combined with low differential travel and high repeatability for consistent performance. It delivers an electrical life of 150,000 cycles at 20 AMPS @ 250 V AC, with contact ratings up to 20 AMPS @ 480 V AC, and operates reliably across a temperature range of -55°C to 150°C. The switch offers variable operating forces from 4 oz to 26 oz maximum at the actuator button, with insulation resistance of 1,000 MO minimum and dielectric strength of 1,500 Vrms minimum at sea level. These characteristics make it ideal for demanding industrial environments requiring durability, precision, and sealed protection against environmental contaminants.