What is the maximum current allowed on line voltage thermostats?

The maximum current allowed on line voltage thermostats is typically 22 amps. This specification is based on the design and construction of these thermostats to handle higher electrical loads, which is essential for controlling heating systems that may operate at higher voltage levels, such as electric baseboard heaters or other direct electrical heating systems.

Using a thermostat that can handle up to 22 amps ensures safety and reliability in the system, as exceeding this limit could lead to overheating, component failure, or even electrical fires. In contrast, the other choices represent lower current capacities than what is commonly accepted for line voltage thermostats, which could result in inadequate control or potential hazards if applied incorrectly. Hence, the specification of 22 amps aligns with the industry standards for ensuring proper operation and safety in high-voltage thermal control applications.