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Does a relay need to be fused?
Yes, The “main” power to the relay fuse, then to the compressor when you switch to “on” will protect the rely and the compressor “if” fused at the power source or at least before the relay. The reason to protect as close as possible to the power source with a fuse/breaker is just in case you have a short in the wire.
Can you remove a relay?
Locate the relay you wish to change by reading the inside of the relay box cover. It maps out the relays and fuses contained in the relay box. Pull the relay out of its plug with your fingers. If you are not strong enough to pull it out with your fingers, use needle nose pliers to grip it and pull it out.
Are relays connected to fuses?
Fuses are included on all your car’s various electrical circuits to protect components from surges of electricity. Relays are remote switches that open or close an electrical circuit. For example, only a little electricity is needed for the headlight switch that turns your headlights on and off.
What is a relay in a fuse box?
A relay consists of a small coil of wire around a central iron core. When the actuating switch energizes the coil this core moves heavy-duty contacts together, thus allowing high current to be passed to the device. That’s how a small switch can control a high-current device.
What comes first relay or fuse?
I would wire it as : Fuse/Relay/Load. Generally a fuse is the first item in any given circuit.
How can I check if my relays are the same?
One thing you can do to check is to read the part numbers on the relays. If they are the same, then the relays are the same and there is no problem with switching them. The trick to reading the numbers is that there are likely to be two sets of numbers.
What is the fuse box diagram for a BMW 3?
Engine bay. fuse box diagram BMW E36. legend. (5A) Door lock heater, central locking, alarm system, convertible roof (5A)Seat heaters, instrument panel, clock, trip computer, indicators, ABS, bonnet lamp, heater, heated rear window, fog lamps, headlamp relay
What is the part number on a Mitsuba relay?
The first will be the part number which will describe the configuration of the relay – the number of contacts, whether they are normally closed (on) or normally open (off), etc. If you do a search on this number or this number and the manufacturer (e.g., “mitsuba 7001” in your case, it should find relays like yours).
Are there relays that control the fuel system?
They control components of the fuel system. It is very likely that the two relays will be the same configuration, since their positions can be interchanged. But, there could be differences.