hi guys
i have see a relay on ebay the Specifications is below
do u think if i can put a 12vdc OUTPUT of the relay because i see only 28vdc??or 28vdc is the maximum current?? what did this mean 'Coil rated voltage: 3-48VDC' can i put 3vdc 'INPUT' it will work??THANKS

• Contact form: 1a, 1b, 1c
• Rated load: 10A 240VAC/28VDC,10A 125VAC/28VDC,7A 240VAC/28VDC
• Contact resistance: <=100m (ohm)
• Electrical life: 100,000
• Mechanical life: 10,000,000
• coil rated voltage; 3-48vdc
• Coil power: 0.36W, 0.45W
• Coil pick-up voltage: <=75%
• Coil drop-out voltage: >=10%
• Ambient temperature: -25 degrees Celsius to +70 degrees Celsius
• Coil and contacts:1500VAC/min
• Contact and contacts: 1000VAC/min
• Insulation resistance: >=100M (ohm)
• Mounting form: PCB
• Weight (g): 10

• Outline dimensions (mm): 19.0x 15.5 x 15.0

 

do u think if i can put a 12vdc OUTPUT of the relay because i see only 28vdc??

Didn’t understood what you are trying to say.

or 28vdc is the maximum current??

28 VDC is a voltage rating its not current, current is measured in Amperes

what did this mean 'Coil rated voltage: 3-48VDC'

It means you can apply 3 VDC minimum to the coil and 48 VDC maximum to the coil to energized the relay.

can i put 3vdc 'INPUT' it will work??

As per specifications it should work.


Good Luck

 

Hi Oolesh.
If you need a cheap 12 volt DC realy. Go to a scrapyard and take one out from a old car.

 

In my experience a "coil rated voltage: 3-48VDC" would mean that that model is available in coil voltages ranging from 3VDC to 48VDC. Like 3v, 5v, 6v, 12v, 24v, 48V. Never seen a relay that had a voltage rating that will withstand 48V on the coil and dropout at less that 3V. How about a link to the eBay post?

Ken

 

check it here http://www.ebay.co.uk/itm/310392944472?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

 

Right at the top of the page "Mini 5V DC Power Relay". Its coil is rated for operation at 5VDC, and the contacts are rates for a maximum current 10A at voltages up to 28VDC.

Ken