5-pin automotive relay: Difference between revisions
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<u><h3>The Automotive Relay</h3> | <u><h3>The Automotive Relay</h3> | ||
The standard pins on automotive relays are labelled on the relay body as; | |||
# Pin 85 and 86 are the coil leads. | |||
# pin 87a is the NC (normally closed) contact. | |||
# pin 87 is the NO (normally open) contact. | |||
# pin 30 is the Common contact for 87 and 87a. | |||
When the coil is '''off''' 87a is connected internally to 30. When the coil is '''on''' 87 is connected to 30 (and 87a is disconnected). | |||
[[Image:Relaybot.jpg|left|Typical automotive relay]] [[Image:Relay.gif|frame|right|Typical automotive relay]] | |||
Revision as of 16:31, 13 April 2008
The Automotive Relay
The standard pins on automotive relays are labelled on the relay body as;
- Pin 85 and 86 are the coil leads.
- pin 87a is the NC (normally closed) contact.
- pin 87 is the NO (normally open) contact.
- pin 30 is the Common contact for 87 and 87a.
When the coil is off 87a is connected internally to 30. When the coil is on 87 is connected to 30 (and 87a is disconnected).
