# How many volts should a relay have?

## How many volts should a relay have?

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.Mar 7, 2020

## Can automotive relay work on AC?

The main issue using DC relay with AC is the contacts might not be spaced enough and you can see arcing. It’s that the relay isn’t made for AC so it can’t handle it.

## Will 12V trigger a 24V relay?

A. Can you power a 24V relay from +12V and -12V? Answer: Yes, that’s a 24V differential; just be aware of how much current the coil is drawing, but apart from that, you’ll be fine. (Although a 24V relay doesn’t draw very much current, so you’re probably fine).

## How many volts can a 12v relay handle?

12V automotive relays operate up to the maximum voltage of a fully charged lead-acid battery, about 15V. The current capacity depends on the particular relay’s contacts.

## How many volts does it take to trigger a relay?

As you can see, the pick-up voltage, what we know as the pull-in voltage is 75% of the maximum. That means the minimum voltage required to activate this relay is 5 x 0.75 = 3.75V.Mar 7, 2020

## How do I convert a car battery to an outlet without an inverter?

You cannot convert a car battery into a power outlet without an inverter. An inverter changes 12V DC (direct current) to 110V AC (alternating current). Without an inverter, appliances will not work.

## How do you convert 12V to 110V?

This is easily accomplished by installing a power inverter in your vehicle. A power inverter converts a vehicle’s battery from 12-volt direct current to 110 volts alternating current (AC).

## Can I use a toggle switch on AC?

Toggle switches as motor disconnects AC general use snap switches are suitable for use on ac circuits only. They are tested for control of resistive, inductive, and tungsten-filament lamp loads up to the ampere rating marked on the switch. They are also tested at 80 percent of their ampere rating for motor loads.

## Can I connect 12V to 120V?

Yes, you can use a 120v switch for a 12v application. The 120v is the max voltage rating of the switch, which states that it can handle voltages up to 120 volts. If you will be using the 120v switch in a 12v application this will not be a problem, as the 12 volts is well under the rating of the 120v switch.

## Can u use a DC switch for AC?

All other things being equal, DC switches have better arc-extinguishing capability than AC switches, because AC switches can rely on the fact that the current goes to zero twice on every cycle anyway. Therefore you can use DC switches on AC, but not always vice-versa.Mar 1, 2019

## Is 12 volts the same as 120 volts?

There are a few major differences between the two, one being 120V requires and electrical license and 12V in Texas does not. Also, 120V is the power that runs through your house, where 12V is dropped down from 120V using a transformer, and is much safer to work with that 120V, especially in your yard.

## Can I use a 12v switch for 120v?

A 12V switch is not guaranteed to open under 120V. When the switch opens a small arc forms, driven by the voltage and current present when the switch opens. Over many cycles arcing will erode the contacts and increase their resistance. This can cause excessive heating over time.

## Will a 12 volt relay work with 6 volts?

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. The 220u charges via the 2k2 and bottom diode.

## Can you use a 12v flasher relay for a 6V?

Just go with 12v. If you use 6V you’re going to have different internal resistances and different currents running through the stuff you use. You can calculate the internal resistance of the part you’re using based on the power rating, or you can just buy 12v and slap it on an it’ll work fine.

## Does voltage matter for switch?

In short: The voltage rating is the specified maximum voltage it can safely switch. (Higher voltages require larger contact separation.) The current rating is the maximum current it can handle.