What is a 5-pin automotive relay?
5-pin automotive relay

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Science, Specialty, Physics
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Professional Development
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Hard
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1.
FLASHCARD QUESTION
Front
Back
A 5-pin automotive relay is an electromechanical switch used to control a high-power circuit with a low-power signal, typically found in automotive applications.
2.
FLASHCARD QUESTION
Front
What is the function of pins 30 and 87 in a 5-pin automotive relay?
Back
Pins 30 and 87 are used for the load side of the relay, where pin 30 is the common terminal and pin 87 is the normally open (NO) terminal.
3.
FLASHCARD QUESTION
Front
What is the resistance measurement between pins 30 and 87 in a properly functioning relay?
Back
.5 ohms or less.
4.
FLASHCARD QUESTION
Front
Which pins are designated for the coil side of a 5-pin automotive relay?
Back
Pins 85 and 86 are designated for the coil side of the relay.
5.
FLASHCARD QUESTION
Front
What does it mean if there is continuity between pins 87 and 87a?
Back
If there is continuity between pins 87 and 87a, it indicates a malfunction, as there should be no continuity between these pins.
6.
FLASHCARD QUESTION
Front
What is the purpose of the coil in a relay?
Back
The coil in a relay generates a magnetic field when energized, which activates the switch mechanism to open or close the circuit.
7.
FLASHCARD QUESTION
Front
What is the difference between normally open (NO) and normally closed (NC) contacts in a relay?
Back
Normally open (NO) contacts are open when the relay is not energized and close when energized, while normally closed (NC) contacts are closed when the relay is not energized and open when energized.
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