Invensys Robertshaw K-681-12 Thermostat Temperature Switch is a high-current, line-voltage device rated for 25 A at 250 VAC, built to switch electrical loads in heating equipment. It provides a broad operating temperature range of 200-550 F, enabling reliable thermal switching across demanding conditions. The model is cataloged as 5300-26G and belongs to the K-681-12 family of temperature switches.
