Bosch Series Parallel Switch Wiring Diagram

1x bosch series parallel switch 0333300003 3165142178868.

Bosch series parallel switch wiring diagram. When the starting key is activated the series parallel solenoid coil is energised and the plunger moves disconnecting contact 1 from 3 and contact 2 from 4. A series parallel switch consists of four sets of contacts that we ll call 1 2 3 and 4. The parallel switch accomplishes this feat using 6 relay contacts as shown in the diagram below. When ground is applied to each coil energizing the relay coils the voice coils are wired in parallel.

When the relays are at rest normally closed position the woofer coils are wired in series. Share 1x bosch series parallel switch 0333300003 3165142178868. By admin december 2 2017. Bosch series parallel switch wiring diagram.

These 6 relay contacts are controlled by the relay coil. When the parallel switch is not active contacts s1 a and s1 c connects battery b2 post to the trucks 12 volt system. Ignition switch output 15a output at the series resistor to the ignition coil and to the starter glow plug and starter switch 17 start 19 preglow battery 30 line from battery positive terminal direct 30a battery changeover 12 24 v line from battery ii positive terminal 31 return wire from battery negative or ground direct return wire to. Series parallel switch diagram provided by bmt member dover.

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