Can you control a load of 12V DC?
The SSR-40 DA. I need to control a load of 12v DC and 30A The device clearly shows that: The output (pins 1 and 2) are AC. It can not switch DC. The output will switch 24 V to 380 V AC. Even if it could handle DC your voltage is too low.
How much power do I need to switch 12 volts?
For switching 12 volts, I’d look at 20 volt rated devices with an on-resistance in the milli ohm range. For a 10 milli ohm on-resistance at 30 A, the power dissipation is going to be 9 watts so, some form of heatsinking will be required. You can get a few MOSFETs that are around 1 milli ohm of course.
Which is lower a DC or AC switch?
A switch’s DC Voltage (V DC) rating is typically always lower than the AC Voltage (V AC) rating at the same current (Amps) rating.
Can a switch be used in any circuit?
When picking a switch to use in electrical design, many people believe they can use any switch, provided its current rating is more than the maximum load in the circuit. This, of course, isn’t true.
Can you control a DC load of 30A?
You can control a 30A DC load of any reasonable voltage with a suitable MOSFET. Your options are wider if the gate control voltage is 10 volts or above. For switching 12 volts, I’d look at 20 volt rated devices with an on-resistance in the milli ohm range.
Can a DC switch be used for an AC switch?
Let take a look at what to consider when thinking of using regular AC household Switches and Sockets for DC Systems. We are often asked by DIY’ers if it is possible to be using AC switches and sockets for DC 12v or 24V systems. The answer is yet, but…
How many amps does a 12V switch have?
The first thing to find out when considering using AC switches and such in a low voltage 12v or 24v system is the ‘amp rating’ of the particular item. Most AC lighting components are either rated 3A or 5A. Now here’s the thing: 3 amps at 240v AC power is equal to around 750 watts and that’s a lot of lighting power right there!