NEMA 4 HMI - Outdoor Application
NEMA 4 HMI - Outdoor Application
(OP)
I am installing an HMI in the door of a NEMA 4 enclosure. The panel will be located outdoors. Most of the NEMA 4 rated HMI's that I've come across are rated for indoor use only. I assume that sunlight glare and UV damage are the main reasons for limiting them to indoor.
Anyone have any experience or ideas on what the best, and lowest cost, solution would be for adapting this HMI for outdoor use without derating the enclosure? The HMI is pretty basic. Using it to start/stop a couple of motors and monitor some flowrates and pressures. I'm even thinking that monochrome will suffice. Thanks.
Anyone have any experience or ideas on what the best, and lowest cost, solution would be for adapting this HMI for outdoor use without derating the enclosure? The HMI is pretty basic. Using it to start/stop a couple of motors and monitor some flowrates and pressures. I'm even thinking that monochrome will suffice. Thanks.





RE: NEMA 4 HMI - Outdoor Application
This is why they are being constrained to indoors.
Reconfigure your design so sunlight never hits the unit and then use any NEMA 4 unit you want. If low temps are a possibility add a thermostatically controlled bar heater somewhere.
Keith Cress
kcress - http://www.flaminsystems.com
RE: NEMA 4 HMI - Outdoor Application
We ended up installing an isolated line driver, ran a hundred yards of twisted pair cable to another line driver installed in a nearby modular building and mounted the HMI in a protected environment.
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RE: NEMA 4 HMI - Outdoor Application
http://www
They have a 15" version as well.
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