Low voltage DC systems need suitable connectors. Different proprietary connectors are available, but usually with them problem is their price and availability. Traditional lighter plug as used in cars is awful in many ways. Some applications use XLR connectors successfully, with the downside that you can accidentally plug mic to such outlet.
One thing I have sometimes seen in Finnish electrical installations is that USA mains connector has been used as connector for low voltage DC (24V and 48V DC).
Here is one example:
3 Comments
Tomi Engdahl says:
A little bit modified “who hole European ungrounded” electrical power outlet for DC use: one hole bigger and other smaller than normal
https://www.erikoistekniikka.fi/aurinkoenergia/tuote/dc-pistorasia-12-48v/7034011800/
http://www.vekoy.com/product_info.php?products_id=6898
Tomi Engdahl says:
DC power outlet for 12V
https://www.finnparttia.fi/PU-12-R
Tomi Engdahl says:
Small DC connector 24 V DC, 16 A, IP 34
https://www.finnparttia.fi/PP-224-R
12V DC IP34
http://maritimshops.fi/fi/tuote/91420550/9514003036/pistorasia-1-os-12v-dc-ip34/45608431/1