1. Question: What is the common theory behind the operation of the listed thermal overload relays?
Answer: The common theory behind the operation of the listed thermal overload relays is the thermal relay theory, except for one which operates on the voltage relay theory.
2. Question: Are all the listed thermal overload relays designed for long-distance control applications?
Answer: Yes, all the listed thermal overload relays are designed for long-distance control applications, as indicated by their product descriptions.
3. Question: What is the contact load capacity for most of the thermal overload relays mentioned?
Answer: Most of the thermal overload relays mentioned have a low power contact load capacity.
4. Question: Do all the thermal overload relays have a protective feature?
Answer: Yes, all the thermal overload relays mentioned have a sealed protect feature.
5. Question: Is the size of all the thermal overload relays the same?
Answer: Yes, all the thermal overload relays mentioned are of miniature size.
6. Question: What is the primary usage of these thermal overload relays?
Answer: The primary usage of these thermal overload relays is protective, specifically for motor thermal overload protection.
7. Question: Is there any thermal overload relay that offers current selection options?
Answer: Yes, the "New original overload protection thermal relay TK26-PC" offers current optional protection, implying selection options.
8. Question: Do any of the thermal overload relays offer a warranty?
Answer: The provided information does not specify warranty details for the thermal overload relays.
9. Question: Are there any thermal overload relays that specifically mention their operational frequency?
Answer: Yes, the "lr2 d43 50/60Hz AC thermal overload relay" specifically mentions an operational frequency of 50/60Hz.
10. Question: Can the "Best price LRS Thermal Overload Relay" be distinguished by its theory of operation compared to the others?
Answer: Yes, the "Best price LRS Thermal Overload Relay" is distinguished by its operation based on the voltage relay theory, unlike the others which are based on the thermal relay theory.