Hi , for my project i need a relays with coil 12v , in which I have to pass a 200vdc and 1A. I reach for few days rele reed but i don't find anithing....
someone can help me?
Do you care about how it is mounted? Do you care if it is new or used? How much shipping are you willing to pay?
I only care that they are small and can handle 200 VDC and 1A
The load is important too - if you are switching an inductive load the relay may need de rating ( eg a 5A relay might be needed ) .
What does small mean? 200VDC 1A relay cannot be small!
Yep , a difficult voltage and current combination - example a 250v AC 10A relay derates to 30v dc at that current .
Worse for inductive loads.
There may be other solutions , what is the project and where does the 200v DC come from ? How often switching and switching what ?
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Hi,
What is the load?
Can you please tell us what your project is?
Thanks.. Tom... 
the 200v 1ha current comes from a 12v battery, amplified. the relays are used to open or close the passage of current in 196 measurement points. Amplifying the current after the relays could be the solution, however a single amplifier would nullify the functionality of the relays. Any other solution is welcome
Sorry, you are switching 200V to 196 measurement devices.
What are the devices.
Explain, 12V battery, amplified????
PLEASE explain the project?
What is it, what does it do in the real world.
Can you post some pictures?
Can you please post a copy of your circuit, a picture of a hand drawn circuit in jpg, png?
Hand drawn and photographed is perfectly acceptable.
Please include ALL hardware, power supplies, component names and pin labels.
I believe we have a translation problem here, what is your native language?
Thanks.. Tom...
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Looking at Digikey, the highest DC voltage for any relay they offer is 100 volts.. Your requirement is WAY beyond what is available. The problem is QUENCHING the arc when the circuit is opened.
the project is to create something similar this : P 200 per sondaggio elettrico verticale
For every one's education, I found the high voltage DC relays are sealed with a mixture of hydrogen and nitrogen to quench the arc.
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See the off-on switch on the device? Automate that to turn off and THEN switch the high voltage output connection with a regular relay. THEN switch off-on switch back to the on position. Perhaps that will do what you are designing without needing $200-$400 relays.
Time of measuremente is around 0.5 -1 seconds, you think io i turno on off power a normal relay for this low time is ok?
If I understand SEV correctly you place 2 electrodes in the ground some distance apart and apply 200V. You put more electrodes between the first 2 and measure the voltage. If I understand your proposal you want to use relays to switch between some large number of measurement electrodes, is the correct? You don't want to automatically switch the 2 electrodes feeding current into the ground, is this correct?
My oldest instrument wich declair 2000 v p.p. in ac and 5A max have relay as innphoto. I don'ylt understand that relay in not for voltage and current declared. Can anyone tell me why?
Without the service manual for the device, how can anyone be sure? I suspect the device uses a battery to generate the AC and high voltage. The 5A is likely the current from the battery. The relays are switching the battery voltage, not the high voltage which will be switched off when the circuit generating the AC is switched off.
Is AC, different switching characteristics to DC.
The relays in post #17 have contacts rated to 120Vac and 60Vdc so they aren't switching that 2000Vp-p.
Tom..
The user manual of electric schema is not disponible obviiously.
ok let's assume that the current is converted after the switch, how can it'possible to isolate measure poin if all cable, of measure point, pass trough same ac or dc amplificator?
This destroy all switch functionality i think