Question

Do thermal overload devices measure current directly?
1) Yes
2) No

Answer 1

Thermal overload devices do not directly measure current. They protect electrical circuits from overheating due to excessive current.

Step-by-step explanation:

Thermal overload devices do not directly measure current. They are designed to protect electrical circuits from overheating due to excessive current. The devices typically use a bimetallic strip or a heating element that expands when the current exceeds a certain threshold, which in turn triggers a mechanical switch to disconnect the circuit. This prevents excessive current from flowing through the circuit and causing damage or fire.