Selection of a 12V contactor for 10W 230V LED lighting with delayed switch-off

Hello, I have a problem with selecting a contactor for lighting around the house. The led lights something like halogens 10 W,230 V are to be activated with a time delay contactor with delayed switch off. The contactor has to be controlled by 12 volts, because that is what I have on the output of the sensors. I have searched there is a lot to choose from but I don't quite understand what I am reading. Will something like the PCA512 UNI fit?

This component is just a 'light at the end of the tunnel'
But you still need to consider sustaining the operation of the PCA-512 after the control signal from the sensor has disappeared - if the lighting time is to be longer than the time from the sensor.

That's what I don't understand now in the shop they told me that it has a delayed switch-off adjustable by a knob and after the disappearance of these 12v it maintains the contact still for this specified time.

Data sheet - I recommend ...reading
http://fif.com.pl/pub/File/download/INSTRUKCJ...asowe/FF%20PCA-512%20UNI%20inst%20B100607.pdf
It works in such a way that, when powered, it "grabs" the relay (built in) and from that moment counts down the time; after the countdown, it "lets go" of the relay (while the power supply must be at least as long as the set time - I recommend the PCA-512 operation diagram in the materials mentioned above)

But it just needs a suitable capacitor before the contactor, am I right? It needs about a minute delay

This is an inelegant solution: a small capacitor will not extend the time significantly, while one with a large capacity will either not have time to charge or will very quickly destroy the detector contacts with a significant charging current.
The only advice I can see is to power (excite) the tripping of the PCA-512 with a signal from the detector and, through its contacts, to sustain its own power supply (i.e. from the detector to supply a switching signal and a 12V constant power supply).

Don't look for a contactor for this, but a relay, controlled by 12V. For example, take a look at the Relpol range.

Added after 1 [minute]:

pafciowaw wrote:

The only advice I can see is to use the signal from the detector to power (excite) the tripping of the PCA-512 and through its contacts to sustain its own power supply (i.e. from the detector to supply the switching signal and 12V DC power).

This is a big mistake. Different voltages must not be applied to the working contacts of the relay.

Well, theoretically it is not allowed, but what could be the result? Of course, no one can do that on machines costing hundreds of thousands of zloty, but when used for backyard lighting, it should be possible. Am I a bit right?

gigi1988 wrote:

Well, theoretically it's not allowed, but what could be the result? The contactor will switch off the 12 volts after a set time, of course no one will do that on machines costing hundreds of thousands of zlotys, but when used for backyard lighting it should be possible. Am I right?

You don't. The relay has no quench chambers and at any time the resulting arc can cause a short between circuits. Thus, never allowed!
When the need arises to switch different circuits simultaneously, of course either two relays or one contactor can be used, and please distinguish between these two apparatus, as these terms cannot be used interchangeably. A contactor and a relay are different things.

That's not good, I have a relpol 3140 contactor with a gz80 base, is it possible to do a delayed switch-off?

Col. retrofood: all my solutions revolve around the PCA-512 UNI being powered on 12 Vdc (12-264 V AC/DC), so both power and switching can be done on the same supply. To the PCA-512 UNI, all you need to do is feed the signal from the detector, the 12 Vdc power supply (to the LED), and separate the voltages with a rectifier diode (or diodes).

https://obrazki.elektroda.pl/8164318600_1396543415.jpg

pafciowaw wrote:

Col. retrofood: all my solutions revolve around the PCA-512 UNI being powered on 12 Vdc (12-264 V AC/DC), so both power and switching can be done on the same supply. To the PCA-512 UNI, all you need to do is feed the signal from the detector, the 12 Vdc power supply (to the LED), and separate the voltages with a rectifier diode (or diodes).

Let them circulate, just how does this relate to the Author's assumption?

Quote:

LED lights something like halogens 10 W,230 V should be run...

Therefore mine revolve around two tensions.

Indeed...mea culpa....
As the PCA-512 has only one working contact: you have to add a relay and only from its contact supply the 230 Vac circuit.