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Electrical device which, when energised by a small electrical current, safely switches a larger electrical current.
2
votes
Automotive relay pin numbers
The numbering system is given in DIN 72552.
1 = 85 (can probably be swapped with 86)
2 = 86
Since it's just a normally open contact ...
3 = 30 I would call this 87 as it is the 'hinge'/commo …
6
votes
Burning air pressure switch
Relay control of compressor motor.
Rewire the unit as shown.
Use a 12 V relay rated for > 40 A. Your local car parts shop should have something suitable. … When the pressure is low the switch will close and energise the relay.
The relay will power the motor.
When the pressure is high the pressure switch will open and the relay will turn off. …