Here’s what more than 2,500 business decision-makers around the world say.Download the report
...with the Facility Hero app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Everything you need to know about our IoT technology backbone.Learn more
Explore our global offerings or select your country from one of our five regions.Global
Découvrez nos offres globales ou sélectionnez votre pays dans l’une de nos cinq régions.
Goals and Symptoms
Solid State Relay: Operating limitation in altitude
Facts and Changes
Causes and Fixes
Altitude is a factor in heat dissipation capability.
All heat dissipation capacities in data sheet are usualy based on an altitude of 3300 feet (1000 meters) or less.
At higher altitudes, air density, fan efficiencies, and heat transfer efficiencies all decrease.
Usual derating of heat dissipation capacity of the heatsink, is 2% for each additional 1000 feet (305 meters) above the 3300 feet (1000 meters).