What is the load current handled by the solid state relay?
Packaged solid-state relays use power semiconductor devices such as thyristors and transistors, to switch currents up to around a hundred amperes. Solid-state relays have fast switching speeds compared with electromechanical relays, and have no physical contacts to wear out.
What is the advantage of a Solid-state Relay?
Thus the main advantages solid state relays have over conventional electro-mechanical relays is that they have no moving parts to wear out, and therefore no contact bounce issues, are able to switch both “ON” and “OFF” much faster than a mechanical relays armature can move, as well as zero voltage turn-on and zero …
How much DC does a solid state relay need?
Input trigger voltage 3V to 9V DC (1.5V to 12 V with Transistor) and output load 10Amps and supply 12V to 60V DC (100V DC also Possible). Gate Driver required supply 12V to 18V DC. Heat sink required for peak load.
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.
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.
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.