Will a 12v relay work with 6V?
Description. This circuit allows a 12v relay to operate on a 6v or 9v supply. Most 12v relays need about 12v to “pull-in” but will “hold” on about 6v.
What is 6V relay?
The 6v relay is an electromechanical switching device which controls the AC devices through the DC power. Features of Relay 6V: Max Current: 5A AC/DC (max). Max Voltage: 250V AC/30V DC.
How do you size an automotive relay?
An easy way to determine the limit of a relay is to multiply the rated Volts times the rated Amps. This will give you the total watts a relay can switch. Every relay will have two ratings: AC and DC. You should determine the AC watts and the DC watts, and never exceed these ratings.
How many volts does it take to trip a relay?
The nominal voltage of a 12V relay is 12V, so 80% of this is 12 x 0.8 = 9.6V. So in theory, this relay should activate at 9.6V.
Can you use a 24V relay for 12v?
Alternative Use: Operate 24V Relays from 12-13.8V Once the relay has pulled in, most “24V” relays will hold in quite satisfactorily on 12V or even less. So there’s actually no need for a continuous 24V supply – all you really need is that first short pulse.
How many watts before I need a relay?
18 watts, 1.5 amps, definitely no need for a relay. As you get up to 10 and especially 20 amps, you’ll have more & more need for a relay. Hope this helps clarify. see less It’s all about not running high current through your switch.
How much current is needed to activate a relay?
You notice the ‘must release’ specification is 5% of the nominal voltage. It is always the case that once a relay has closed, it needs far less current to hold it closed than it took to close it. Often it will tolerate a drop to 25% of the nominal closing current before it drops out.
How much current can a relay handle?
To stay within the power rating, a signal with a maximum voltage of 250V, should have a current of no more than 240mA. Most relays, therefore, have a complex useful working area. The higher the switched voltage, the lower the maximum switch current must be for a relay to handle it safely.
How many watts can a 30 amp relay handle?
A 30 amp relay @ 12 vdc is capable of handling 360 watts I think.