There is also a 20-amp dryer plug on the market so be careful how you phrase your request. Then add the word 30 to your phrase to make sure you get a 30 amp option and not a 50 amp one. You may have to use an extra word, like dryer plug to get close to the exact plug you need. The L stands for locking as the TT stands for travel trailer. Individual plugs may have special labels, like the TT-30 above, but that is because they have a special use. A 30-amp plug is called a 30-amp plug as any other name would confuse the world and make it more difficult for people to find what they are looking for. There is no special name for these plugs. They should get you on the right track to finding the right replacement. Talk to your electrical expert and see what all the plugs are and what they are for. These are not all the 30-amp plugs you can buy but they are the most common ones you would encounter. L6-30 (locking 240 volt 30amp) Twist-Lock 30A 240 volt outlet, easy to find in stores, works great for adding adapters to portables EVSE’s equipped with a L6-30 plug ( source) TT-30 (Travel Trailer 30amp) 30A 120-volt 3-prong outlet, the older style found in RV parks, not used in residential homes. 14-30 standard 30A 240 volt 4-prong Dryer outlet found in homes built in 1996 and newer 10-30 standard 30A 240 volt 3-prong Dryer outlet found in homes built before 1996 Here is a brief list of those different plugs and their use: Are There Different Types Of 30 Amp RV Plugs? The plug you need for your travel trailer should be marked TT-30 and this is for those older campgrounds using an older electrical system that has been in place for a very long time. You need to take a few minutes to examine the prongs and see if they will work for your intended use. This means you just can’t walk into an outlet selling electrical parts and just pick up one and go home. Those dryer plugs can be for either 240 or 120 volts. The one you buy will depend on the make and model of the dryer. 3 were for a welder or plasma cutter (or similar work tools). They all have different purposes and they can be for either 240 or 120 power.ģ of those plugs were for your RV or travel trailer. On one chart we saw about 8 differently designed 30-amp plugs. maximum 16A continuous load on a 20A circuit no more than 24A continuous load on a 30A circuit).No, they are not. Remember, too, that a 30A circuit should not be loaded up with 30A of equipment-you need to leave some "head room" to ensure that the circuit is not overloaded (I believe the rule is to stay below 80% of the maximum rated capacity (e.g. I would confirm that all of your equipment is capable of accepting high-voltage power if so, obtain the appropriate power distribution module and cordage to connect your equipment to the 240V 30A circuit. The wire gague required to carry the same power at 240V is smaller and more flexible than the heavier wire required at 120V, which may be a convenience when routing cables within the rack. they produce less heat, which is wasted energy) which can save a bit on both power air conditioning load. My understanding from engineers at colocation facilities I've worked with is that most switching power supplies are a bit more efficient with a high voltage input (e.g. Given that, your equipment most likely will not care whether they have a 120V or 208V or 240V input-so long as you have the appropriate power cord to connect the system to the power distribution module. You should do some research to be certain, but most modern computer equipment is equiped with switching power supplies that accommodate a wide range of voltages (manufacurers don't need to stock a separate power supply for each country instead, they simply ship the appropriate power cord for the destination country). You are getting the same amount of 'power' either way (120V x 60A = 240V x 30A), so from an electrical "power" standpoint it is a wash-either one will support the same amount of equipment in the rack. This will also be redundent circuits so I will be balancing each one to around 40% load so that in the event one circuit goes down then the other can carry the full load at or around 80%. Therefore locking power cables will not be an issue and standard plugs into the servers will be used. All servers and Cisco gear that we are running can support either 120V or up to 240V. the 120V.ĮDIT - This will be running in the US. If this is true then I'm wondering if that would result in my ability to run more devices off of the 220V power vs. I remember reading somewhere that 220V is more effecient than 120V. I realize that these two curcuits are delivering effectivly the same amount of usable power, however I'm curious if one is better than the other. The price is the same for either a 30 AMP 220V circuit or a 60 AMP 120V curcuit. I'm looking for advice on which electrical service I should have run to a rack that I have in a data center.
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