12V DC Thermostat Controller All-Purpose Digital Temperature Controller Thermostat with Sensor Digital Display Microcomputer

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Hello John, alright, you need 7.5 amps. Accounting for NEC 80% rule, you need a wire with an ampacity of 9.375A. Accounting for 75 feet voltage drop, you get up to 14 AWG wire (it has 20A ampacity). Hope this helps. Reply

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Its small form factor means the sensor can be used in areas where the client wants no room thermostats mounted on the wall. All wiring and electrical work involved in installing heat controls must be completed by a qualified and certified electrician. The ways office buildings are used is changing fast. Trends such as smart offices, digitalization and flexible work stations require adaptations in the technical aspects as well. Optimal indoor comfort for workers is essential. Danfoss offers comfort-increasing and energy-saving HVAC solutions. On top of the calculated amps, we have to apply the 80% National Electric Code (NEC) rule. This states that the calculated amps should represent at most 80% of the ampacity of the wire we use. This is a safety measure; choosing a bigger wire will prevent the 12V circuit from catching on fire. To account for this rule, we simply multiply the calculated amps by a 1.25 factor like this: Self Learning Preheat calculates the amount of heat up time required to ensure your home is warm when you wake and return home.The circuit will increase the amps by itself when it detects the voltage drop. This happens automatically. What you need to do is to recognize that your circuit needs more amps.

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As the voltage decreases, the amperage increases to give the same wattage output. You need to do the calculations as given to determine the cable sizes required. Reply Hi Marti, for a 50 amp current at 12 feet distance, you would need 6 AWG copper wire. It has 65A ampacity; this is more than enough for a 50A current. The same is true for your 2nd question; you might be able to facilitate that amp draw with 8 AWG copper wire but 6 AWG copper wire is the safe bet. Hope this helps. Reply The correct wire size for a 150W 12V circuit is the 16 AWG with 17A ampacity. This 17A ampacity is bigger than the minimum required 15.63A ampacity we calculated. One that is a direct swap, easy install to upgrade your Dometic or Coleman RV AC Thermostat, no need to experiment with converting a home thermostat to a 12 volt Thermostat for your RV? If your RV WiFi Thermostat also has a Humidity sensor, you can get an Alert if the humidity level starts to rise.You can also set Alerts when these voltages go out of range, or even if shore power is lost. In that case, the voltage would drop to the battery-only voltage of about 12.6 volts for x minutes, meaning the charging system may be off (or power loss). Why not Upgrade to a Smart WiFi Thermostat for your RV?

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Since the Smart Thermostat has its own Cellular Connection, you will not need to rely on campground Wi-Fi, your mobile hotspot, or any other Wi-Fi in the area. Wire Size Chart. This wire chart tells you what 12V wire size to choose if the device you want to run with the 12V voltage is some distance away (from 15 feet to 90 feet). Our Smart Thermostats allows remote access to your heating system via the MyHeating app for Smartphones or through the My Warmup online portal. Hi Fred 18 AWG copper wire has a median ampacity of 14 amps (here is the full AWG copper wire ampacity chart). Even if you are run the wire for 25′, the 18 AWG will be more than enough. 16 AWG would be overkill. Hope this helps. Reply Depending on the product, the product guarantee is valid for two years, five years, or twenty years.

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So if I am running two 20 watt led lights, total of 40W in a 12v system. that would equal 3.333 amps and with the NEC rule would come to 4.17a. If I need to run 25′ I would say 16 AWG is good? I assume 18 AWG would be to small for the distance. Reply