Wiring Diagram For 40 Amp Relay

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My son has a 94 wrangles and we are putting in a new stereo the one in there now is a an after market one and the wiring has already been altered i need to get a diagram of the wiring for the radio and speaker hook up color coded to know which ones go the which.

Wiring diagram for 40 amp relay. Relays generally have 4 pins marked 85 86 30 87 or 5 pins 85 86 30 87 87a. Latching relay manufacturers latching spdt 3040 amp and other specialty relays. Automotive electrical diagrams provide symbols that represent circuit component functions. For most automotive relays pins 85 and 86 are the coil circuit and takes 12 volts to activate the switch assuming a 12v rated relay of course. Use a 1n4000 series diode available at radio shack and other electronics stores as a drain for static electricity that builds up from deactivating the coil. This relay will be identified as having a middle 87b spade or no middle spade at all. For example a few basic symbols common to electrical schematics are shown as. Switch capacity up to 40a. 1 switch 2 battery 3 resistor and 4 ground. Hat901 series spdt 3040 amp features. Hello for the cooling fans look to the two 40 amp fuses that provide power to the fans if these are good you will have to check the ecm signal to the relays that turns the fans on. I need to get a fuse panel layout and a wiring diagram for a 2000 freightliner fl80. Welcome to the el34 world tube amp library of information. Single pole single throw spst. 4000vac high dielectric strength between contacts and coil is available.

Having problems with the batteries answered by a verified technician. Automotive wiring diagrams basic symbols.