FF411 24V relay - light extinguishing problem, looking for a modular solution

Hello
I would like some advice please.
I have ff411 24V relays. With these I control the lighting without using an additional controller.
More and more often I have problems with the light going out. I press the switch and the light is still on. Only switching off the 24V power supply resetting the relays helps. My guess is that the contacts are sticking together.
I would like to change the aforementioned solution to another, preferably with a modular design (base, relay).
What can you recommend in my case, is there a modular solution available at all for such applications?

It's not the contacts that are sticking together because removing 24VDC wouldn't do anything for that
would not help. It's simply that the bistable relay is going out.
Is this happening on one circuit or other circuits too ?

Czybyszew wrote:

Does this happen on one circuit or other circuits too ?

I have about 15 relays in total. with about 5 so far there are problems.
1 relay = 1 circuit

Do you have relays controlled by L or N ?
It looks like you have something in the installation.

Czybyszew wrote:

Do you have the relays controlled by L or N ?
It looks like you have something in the installation.

The relays are controlled by a minus (-) from 24V.
Nothing has changed in the installation for a year.
It is probably a relay fault.
That is why I asked for help in selecting new ones, preferably of modular design. The switched lighting is mainly fluorescent.
If anyone can recommend something durable for this type of lighting, I would ask for some types.

With fluorescent lights the relays will tend to stick together. Shrink them with triac switches or R 15 relays, in my case it helped.

Zbigniew 400 wrote:

With fluorescent lights the relays will tend to stick together. Re-stock the triac switches or R 15 relays with them, it helped with me.

If they were actually sticking then removing the 24VDC would not help, just removing the main voltage.

OK Gentlemen, how about I ask the question in a different way.
What modular relays do you recommend for pulse switching (-24VDC) of lighting on fluorescent lamps. I have heard that WAGO relays (which model?) are a good choice and meet the requirement of modular design. Do you confirm or do you recommend something else, however.

I use Wago frequently at work. Generally the quality is so-so. Depends what they put in, wago don't make their relays, they put panasonic, Phoenixcontact and others in the case.
Back on topic if you want to find out if it's the contacts sticking then add a bistable contactor to it and if it's the contacts you'll find out.

Czybyszew wrote:

Wago I use frequently at work. Generally the quality is so-so. Depends what they put in, wago don't make their own relays, they put panasonic, Phoenixcontact and others into the housing.
Back to the topic, if you want to find out if it is the contacts sticking then add a bistable contactor to it and if it is the contacts you will find out.

I disconnected the circuit from the relay with 230V. Once it was switched on, it was no longer possible to switch it off. So I guess it is indeed not the fault of the contacts sticking together.

Which specific WAGO model can you recommend for lighting with electronic ballast?

If the relay does not switch off after de-energising then it has eroded contacts and the spring cannot disconnect the contacts. I recommend R 15.

Zbigniew 400 wrote:

If the relay does not switch off after de-energising then it has eroded contacts and the spring cannot disconnect the contacts. I recommend R 15.

I don't think I understand something now. i.e. are you saying that the contacts are sticking together? I wrote earlier that if I switch the relay on with no load, it doesn't go off either.

I was asking for advice on what relays to buy instead to make them less fail-safe. necessarily 24v and pulse activated. R15 doesn't seem to me to meet these objectives?

The spring is unable to deflect the contact, the damage is more mechanical
rather than electrical.

I used R 15 and there were no problems.