The Honeywell part 2455RC-90820387 is a Ceramic Automatic Reset Thermostat designed for reliable temperature control. This thermostat has a switch type of SPST (Single Pole Single Throw) and an automatic reset function. It opens contacts on temperature rise and is made of a durable silver alloy ceramic construction. It has a current rating of 15 A/10 A and is suitable for use in applications with an operating temperature range of 0 °C to 260 °C [32 °F to 500 °F]. The open temperature is set at 150 °C [302 °F], and it closes at 135 °C [275 °F]. The thermostat has a tight tolerance with an open tolerance of 4 °C [7.2 °F] and a close tolerance of 5 °C [9 °F]. It is a reliable and efficient solution for various temperature control needs.