How are thermal switches typically connected in relation to each other?

Thermal switches are typically connected in a parallel configuration to ensure that each switch can operate independently. This arrangement allows for increased reliability; if one thermal switch fails or activates due to heat, it does not affect the operation of the others in the circuit. Each switch monitors the temperature of its designated component or area and can activate or deactivate a circuit based on temperature changes.

In a series configuration, the failure of one switch would interrupt the entire circuit, which could lead to critical failures or safety hazards. A combination of series and parallel would complicate the system unnecessarily, as the direct monitoring and independent operation of each switch are paramount for effective thermal management. The option that states they are not connected is also incorrect, as thermal switches must be integrated into electrical systems to fulfill their function. Thus, the parallel configuration is the most fitting answer for how thermal switches are connected relative to each other.