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Sedaia [141]
3 years ago
10

Technician A says that a good relay should measure between 60 ohms and 100 ohms across the coil terminals. Technician B says tha

t OL should be displayed on an ohmmeter when touching terminals 30 and 87. Which technician is correct?
Physics
1 answer:
ipn [44]3 years ago
4 0

Answer:

Both technicians are correct.

Explanation:

A working coil in a relay can measure resistance between 50 an 200 ohms.

And the terminals in a Relay are the next, considering the German International Automotive industry standard DIN 72552:

85 Coil

86 Coil

87 NO Normally open

30 Common

So Measuring between terminal 30 and 87 must be an open circuit, and the ohmmeter must show infinite resistance or "OL".

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