AUTOMOTIVE RELAY SWITCHES | BEST PRICES ONLINE
Shop our collection of Relay Switches - we supply a range of quality 12 Volt and 24 Volt - 4 Pin Relays, 5 Pin Relays, 4 Pin Micro Relays, 5 Pin Micro Relays and Relay Bases. We have 1000's of relays in stock ready for shipping. We buy in Bulk so that we can pass the savings on to you - the customer.
RELAY SWITCH CIRCUIT
A relay switch is an electrically operated switch that is used in applications that require the control of a circuit by a low-power signal, where the control and controlled circuits must be electrically isolated from one another. Relay circuit switches are found in most vehicles driving on the nation's roads. They are most commonly used to enable a low amperage circuit switch On or Off a higher amperage circuit. The most frequent example of this is probably the switching on of the vehicle's head lights. Browse our bargain relay range today - and you will not be disappointed.
RELAY CIRCUIT APPLICATIONS
Relay switches should be used in situations when a heavy current is being switched. for example - a heated wind screen, car horn or a starter solenoid. A Relay should be included in this event to protect the switch and the cable. Relays allow a greater current load to be controlled by a lighter current switch at the facia. They also serve to reduce voltage drops where long connections/ cabling are involved.
TOP SELLING RELAYS
STANDARD RELAY - 5 PIN, 12 VOLT, 40 AMP
Relay Switch Unit - Type: Changeover, 5 Pin, 12 Volt, 40 Amp. Comes with a diode across the coil. Does not have a bracket.
MICRO RELAY - 5 PIN, 12 VOLT, 20 AMP
4 Pin Micro Relay Switch, 12 Volt, 20 Amp, Terminal sizes 3 x 4.8mm and 2 x 6.3mm, This Automotive Micro Relay Changeover does not come with a bracket.
STANDARD RELAY - 4 PIN, 24 VOLT, 30 AMP
Relay Circuit with 4 Pins, 24 Volt, 30 Amp, Normally Open Contact, Comes with Detachable Bracket
CHANGEOVER RELAYS - HOW THEY WORK
Automotive relays are located in the majority of modern vehicles on the road today. For the most part they are employed to allow a low amperage circuit switch on or off a higher amperage circuit. One of the most common applications for a Relay Switch Circuit is found in the mechanism used to turn on the headlights of a vehicle.
If the headlights were directly wired to the headlight switch the amp rating of the switch would be exceeded and there would be significant risk of causing irreparable damage such to the circuit. Example of such damage are: melted wires and/ or electrical fire. A relay switch circuit is a safer circuit. Relays can also be employed to facilitate the switching of multiple components at the same time using a single output.