Relays FAQs
| Q | How can I tell what relay I need? |
| A | You can try to identify a relay by the number of terminals or by checking the internal circuit schematic. |
| Q | What do NO and NC mean with reference to relays? |
| A | Normally Open (NO) means the high current contact is open with the relay at rest (i.e. no power applied to the coil) and closed when the relay coil is energised. A Normally Closed (NC) relay is the opposite. Normally Open relays are the more common type. |
| Q | How much energy will the coil draw? |
| A | A relay coil typically draws a very small current somewhere in the region of 100-300 mA, making them ideal for use with low current switches to turn a higher current circuit on and off. |
| Knowledge Centre Guides | Article Link |
|---|---|
Relay GuideRelays are used extensively throughout all modern vehicle electrical systems. They are quite simple devices but very useful, so once you understand how they work and what they enable you to do it opens up a vast range of applications for your aftermarket projects |
| VIDEO ARTICLES - YOU TUBE LINK |
|---|
Featured News Articles
Friday, 25 March 2022 | Craig Today our video takes a look at 2 of the most common relays used in 12V applications Make & Break & Change over relays. Posted in Help & Advice |
Disclaimer - The information contained in these articles is provided in good faith and we do our best to ensure that it is accurate and up to date, however, we cannot be held responsible for any damage or loss arising from the use or mis-use of this information or from any errors or omissions. The installer is ultimately responsible for the safety of the system so if you are in any doubt, please consult a qualified electrician.