12V NEC Class 2 Supply

[tcookson]

I have application where I need to have both 12VDC and 24VDC class II circuits for an industrial control panel powered by a DC ups. I can find 24V output class 2 DC converters all day long, but cannot find anything listed for 12V. If I have a 24-12V step-down converter after a 24 DC class 2 converter am I covered or does the potential for energy storage in the 24->12V converter cause me to need a 12V device that is specifically listed for Class 2. If I need such a listed device can anyone recommend a reliable one. My typical vendors (Phoenix, Siemens, PULS) all seem to come up empty.

 

[hbiss]

IMO the 24>12 volt converter must be listed CL2 also. Can't help you with a vendor though.

-Hal

 

[petersonra]

IMO the 24>12 volt converter must be listed CL2 also. Can't help you with a vendor though.

-Hal

Part of the point of using CL2 stuff is that it limits the potential issues downstream. Everything downstream of a CL2 power supply is part of the CL2 circuit. I would vote no need for it to be CL2 if you could find such a thing.

 

[Security101]

Altronix has an assortment of class 2 supplies...

http://www.altronix.com/

Hope that helps,
Jim

 

[hbiss]

Part of the point of using CL2 stuff is that it limits the potential issues downstream. Everything downstream of a CL2 power supply is part of the CL2 circuit. I would vote no need for it to be CL2 if you could find such a thing.

Well, that assumes that every 24>12v power supply would be used behind a CL2 24v source. That's not going to always happen so I' stickin' to my story.

-Hal

 

[nhfire77]

Altronix is the go to company, but if you're building something that needs more flexibility:http://www.lifesafetypower.com/