Wire size for 200 amp service copper

Mar 29, 2024 · The National Electrical Code requires a minimum of 2/0 AWG for copper wire and 4/0 aluminum wire or copper-clad wire when installing a 200-amp panel. However, a licensed electrician should be the one to size the service cable due to a variety of factors that needs to be considered.

This wire size is one of the favorites for large-amp needs. It is the perfect 200 amp wire size with 200 ampacity (3/0 copper wire ampacity has 200A ampacity) at 75°C. It also has a very high 2.7 kA Preece fusing current (power factor is already factored in). Most 3/0 gauge wires with 85.00 mm2 cross-section are rated up to 600 volts.What Wire Size Works Best for 200-Amp Service? If you plan to install or upgrade a 200-amp electrical service panel, you can choose between copper or …When looking for a 200 amp service entrance wire size, you should consider the 3% allowable voltage drop by NEC standards. As a result, you need to use a much bigger wire size than the one for short-distance setups. In this case, instead of using a 2/0 copper wire, you should use 300 kcmil copper with only a 2.78% voltage drop.250.66 is for the GEC not the neutral, however art. 250.24(C)(1) does reference that the grounded conductor not be smaller than the required GEC in Table 250.66. That being said unless you can calculate the neutral load and determine a #4 is satisfactory I would not do this. I generally downsize one wire size for the neutral.It is meant for a 200 amp service. This cable is fine for that purpose. I'm writing this review mostly because of the sadly uninformed "DIYSierra" review -clearly a DIYer and not an electrician. This is aluminum SEU, not NM. "NM" is labeled by wire size/number of conductors, and whether or it it has a ground. SEU is not.This is a good goal to shoot for when sizing the conductors for an underground cable. The following are the maximum lengths of cable you can use while still maintaining a 3 percent voltage drop for the given wire size (AWG) and circuit voltage. As an example, for a 120-volt circuit, you can run up to 50 feet of 14 AWG cable without …The correct wire size for different amp services depends on the specific application and the National Electrical Code’s guidelines. For example, a 100-amp service requires a minimum wire size of #2 copper or #1/0 aluminum, while a 200-amp service requires a minimum wire size of #2/0 copper or #4/0 aluminum.While looking for the ground wire for 100 amp service, it can be as thin as 10 AWG or as thick as 2/0 AWG. The minimum ground wire size for 100 amp service is 8 AWG copper or 6 AWG aluminum wire. It can change based on several factors. You will need to consider a few things before you decide on the exact ground wire size.

In US households, the cooper wire size will be around 250-300 KCMil for 200-amp service for 300 feet away. On the other hand, the aluminum wire needs to be 400-500 KCMil. If you are living in the United State, it’s compulsory to have an idea of NEC (National Electric Code). It is a US-based benchmark that gives code telling what size, …Residential phone lines are provided by the telephone company. The phone lines lead up to the Network Interface Device or NID. It is the responsibility of the homeowner to set up t...At the company we use 2/0 Aluminum wire for a 150 amps service and 4/0 for 200 amps services. Does this mean that the terminations at the meter are rated for 90 C degrees? ... be loaded to 180 amps and protected by a 200 amp device. with a load of 181 amps you will need to increase conductor size but can still have the 200 amp device. …250.66 is for the GEC not the neutral, however art. 250.24(C)(1) does reference that the grounded conductor not be smaller than the required GEC in Table 250.66. That being said unless you can calculate the neutral load and determine a #4 is satisfactory I would not do this. I generally downsize one wire size for the neutral.Note: These values are based on allowable ampacities of insulated conductors rated up to and including 2000 volts, not more than three current-carrying conductors in a raceway, cable, or Earth, single-insulated conductor in free air, and an ambient air temperature of 30°C (86°F).. Source: NFPA 70, National Electrical Code Table 310.15(B)(16-17)The wire size required for a 200 amp service typically falls between 3/0 and 4/0 AWG (American Wire Gauge) for copper wiring. These sizes provide the necessary ampacity to carry a 200 amp load without overheating or causing damage to the wire.

200. Not Specified. Wire Gauge. 2/4. 3/4 $ 5531. 36 ($ 11.06 /ft.) (47) Model# 27757403. Southwire. ... electrical wire. ser cable. 4/0 aluminum wire. 2/0 wire. copper service entrance wires. cut by-the-foot service entrance wires. Download Our App. How doers get more done™ ...Minimum Wire Size; For that, you go to an ampacity table. That tells you that for 75 C wire in conduit (the wire may be rated 90 C, for various reasons 75 C is the one you usually need to work with for this), the choices are 3 AWG copper or 1 AWG aluminum or larger. Feeders such as this are almost always done using aluminum due to cost. …SER copper cable: A 200 amp service size is 2-2-2-4 SER. Here, it means one grounding (bare or insulated), one insulated AWG 2 neutral, and two insulated hot wires. Aluminum SER Wires: A typical code for an aluminum SER cable for 200 amp service is 4-4-4-6. This code means AWG 4 four insulated conductors, 4 AWG insulated neutral wire, and 6 AWG ...Attach white electrical tape to both ends of one 2/0 AWG THHN wire. Insert this wire, two more 2/0 AWG THHN wires and one #4 bare copper wire into the meter base. Pass it through the attached conduit until it reaches and exits the electrical panel inside the home. Leave enough wire on both ends to attach to the appropriate wire lugs.Member. Join Date: Apr 2009. Posts: 11. Upvotes: 0. Received 0 Upvotes on 0 Posts. 2 conductor (s) per phase utilizing a 750 kcmil Copper conductor will limit the voltage drop to 2.81% or less when supplying 200 amps for 1000 feet on a 240 volt system. But that 750 copper is going to cost you.For a 200 amp breaker, the minimum recommended wire size is 2/0 AWG copper or 4/0 AWG aluminum. However, 3/0 AWG copper wire is a better option since it has higher maximum ampacity (200-225 amps). This ensures that the wire can safely handle the maximum current load of the breaker, without overheating or posing a fire risk. The Applications of ...

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Occupation. Electrician. Jul 7, 2020. #3. 4/0 AL is good for 180 amps. 250 AL is good for 205 amps. If you can show your calculated load is less than 180 amps, you can legally go up to the next standard size, a 200 amp breaker. That's code minimum. Over here, we would use 250 AL in a 2.5-3" depending on which size we felt like using.Generally, the ground wire size for a 200 amp service ranges from 2 AWG to 8 AWG. The best one is 2 AWG for copper wire and 4 AWG for aluminum or copper-clad aluminum wire. It is recommended to use them with 1.5-2.5 inches schedule 40 or 80 PVC conduit for underground service. It may differ depending on the materials, permission …Size Wire for 100 Amp Service. AWG, American Wire Gauge, is the US standard for sizing electrical wiring. A 100 amp breaker panel requires either #4 copper wiring or #2 aluminum or copper-clad wiring. Which wire used is determined by the voltage drop and length of the wiring. The following table reflects wiring size, length, and voltage …Occupation. Electrician. Jul 7, 2020. #3. 4/0 AL is good for 180 amps. 250 AL is good for 205 amps. If you can show your calculated load is less than 180 amps, you can legally go up to the next standard size, a 200 amp breaker. That's code minimum. Over here, we would use 250 AL in a 2.5-3" depending on which size we felt like using.The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 Volts, 60°C through 90°C (140°F through 194°F), not more than three current-carrying conductors in raceway, cable, or earth (directly buried), based on ambient air temperature of 30°C (86°F).If copper is the go-to metal in a clean energy world, then why is its price stagnant, asks commodity writer Maleeha Bengali, who says perhaps it's because demand at present, es...

Application. Southwire® Type SE, Style SEU service entrance cable is primarily used to convey power from the service drop to the meter base and from the meter base to the distribution panelboard; however, the cable may be used in all applications where Type SE cable is permitted. SER may be used in wet or dry locations at temperatures not to ...The Bose 802 is a high-end professional speaker, commonly used in sound stage performances. These speakers do not connect directly to a sound receiver, but instead a power amp, whi...If you're interested in paying someone from the comfort of your computer without having to leave home, it's worth exploring how to wire money online. We may receive compens...If you are looking to install a 200 amp service wire or breaker in your home, the minimum size of wire you will need is 4/0 awg copper wire, or 350 KCMIL if the wire length is over 100 feet. Using the wrong size wire, say 2/0 copper or 4/0 gauge aluminum wire, may cause circuit overload, tripping breakers, and electrical hazards.Choosing the right wire for 200 amp service is a matter of safety. The wire that you use for 200 amp service depends on the material, and you’ll need #4/0 wire if it is aluminum. Whether it be copper, copper-clad, or aluminum, let’s take a look at what size wire you need for 200 amp service.Get free shipping on qualified 200 Service Entrance Wires products or Buy Online Pick Up in Store today in the Electrical Department. ... Cable/Wire Type. SER. Mobile Home Feeder. Conductor Material. Aluminum. Copper. Max Amps. Not Specified. 30. 50. 75. 95. 100. 125. 150. 200. 205. 315 ... copper service entrance wires.Recycled copper crafts can be a lot of fun to make. Visit HowStuffWorks to learn all about making recycled copper crafts. Advertisement Making crafts by hand can be extremely rewar...Jan 6, 2010. #8. 200 amp commercial service i forgot to mention that i am coming from a meter/disco outside and hitting a panel about 50 ft away.Looking at table 310.16;for copper-4/0 and for aluminum 300's.If you're interested in paying someone from the comfort of your computer without having to leave home, it's worth exploring how to wire money online. We may receive compens...Occupation. Electrician. Jul 7, 2020. #3. 4/0 AL is good for 180 amps. 250 AL is good for 205 amps. If you can show your calculated load is less than 180 amps, you can legally go up to the next standard size, a 200 amp breaker. That's code minimum. Over here, we would use 250 AL in a 2.5-3" depending on which size we felt like using.Get free shipping on qualified Copper, 200 Service Entrance Wires products or Buy Online Pick Up in Store today in the Electrical Department. ... 4/0 aluminum wire. 2/0 wire. copper service entrance wires. cut by-the-foot service entrance wires. Download Our App. How doers get more done™ ...

So we have to increase by twenty percent to get an accurate size for 200 amps at a distance. 200 Amp Wire for 100 ft away = 250A × 1.2 = 300A Ampacity. Ground Wire Minimum is #4, AWG Copper. The 200 amp service will have 4 AWG copper wires or 2 AWG aluminum wires operating from the ground electrode system to the main power panel.

Example: A 120/240-Volt, 3-Wire, single-phase electrical service for a single-family dwelling with a calculated load (from Article 220) of 98 amps, supplied by THWN copper overhead service entrance conductors. A 100 amp electrical service will be used to supply the 98 amp load for the single-family dwelling. 100 amps X 83% = 83 amps. This is ... Enter the information below to calculate the appropriate wire size. Voltage - Enter the voltage at the source of the circuit. Single-phase voltages are usually 115V or 120V, while three-phase voltages are typically 208V, 230V or 480V. Amperes - Enter the maximum current in amps that will flow through the circuit. For a 200-amp connection, you’ll need to proceed accordingly: Copper wire #2/0. #4/0 aluminum or copper-clad aluminum wire. When choosing your wiring, you’ll …I’m planning on upgrading my electrical service to 200 amps but I’m not sure what aluminum wire size I need. I get confused with the ambient temperature chart, I’m located around Houston Texas area. ... The 200 amp service can be derated to .83 so that's 166 amps. At 75 degrees C, 3/0 Al is 155 amps and 4/0 Al is good for 180 amps so …Usually, a 200 amp service entrance cable may be a triplex (3 wires) for single phase, or quadruplex (4 wires) for three-phase service. Thus, the cable must only …What size service entrance cable for 200 amp / residential serviceWhat size service entrance cable for 200 amp / residential service Amp 200 wire square copper service circuit wiring box electrical main panel breaker meter residential does pix need resets check200 amp service wiring diagram. Check Details. Meter wiring supplied …The size of the ground wire for a 200-amp service depends on various factors, including local electrical codes and specific installation conditions. However, as a general guideline, a copper grounding conductor of 4/0 AWG (American Wire Gauge) or an aluminum conductor of 250 kcal is often recommended.Minimum Requirements For 200 Amp. AWG or American Wire Gauge is the standard for sizing electrical wiring. A 200 amp service requires either #2/0 AWG copper wire or #4/0 AWG aluminum or copper-clad aluminum wire. These are the safest wires to use as they permit the use of full amperage of the electrical service without too high a voltage drop.

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Jul 28, 2023 · A 50 amp sub panel will require at least 3 to 6 AWG wires. Here, I considered the distance around 55 feet. If the distance is longer, I suggest you use thicker and lower gauge wires. If the sub-panel distance from the main panel is 150 or 200 feet, you can use 4 AWG copper or 3 AWG aluminum or copper-clad wires. The cost of wire for 200 amp service varies based on the home size, wire type. For a two-thousand square foot building, you will spend more than thousand-five hundred dollars. It is recommended to use copper-clad aluminum or copper wire if the residential place has the high load capacity.Application. Southwire® Type SE, Style SER service entrance cable is primarily used to convey power from the service drop to the meter base and from the meter base to the distribution panelboard; however, the cable may be used in all applications where Type SE cable is permitted. SER may be used in wet or dry locations at temperatures not to ...4-gauge wire. 70 amps. 3-gauge wire. 85 amps. 2-gauge wire. 95 amps. These ratings are for standard copper NM sheathed cable, but there are instances where these amperage ratings vary. For example, there is aluminum wiring in some homes, and aluminum wires have their own ampacity-carrying capacity.@Tom, See this article for wire size for long runs: ELECTRICAL SERVICE ENTRY CABLE SIZES FOR LONG WIRE RUNS. On 2021-06-05 by Tom . 200 amp service 135 feet length what size teck cable would I need. On 2021-05-13 by danjoefriedman (mod) @Bill, At the WIRE SIZE & AMPACITY TABLES You'll see #8 copper wire is rated for 40 Amps As …33.8. 626. 533. 630. 37.6. 720. 611. This electrical cable size chart amps provides information on the cross-sectional area of the conductor, the approximate …Get free shipping on qualified Copper, 200 Service Entrance Wires products or Buy Online Pick Up in Store today in the Electrical Department. ... 4/0 aluminum wire. 2/0 wire. copper service entrance wires. cut by-the-foot service entrance wires. Download Our App. How doers get more done™ ...While traditionally a gauge of global health, copper is now weighted toward the Chinese economy....ANFGF Among all the commodities, only copper has been given the delineation of "d... ….

3/0,3/0,3/0 & 1/0 Copper SER Service Entrance Cable. Sold by the foot cut to length. ... 200°C; PTFE Wire - 200C; TGGT Wire - 250°C; MG Wire - 450°C/550°C; Medium Voltage Cable. ... Service Entrance Cable: Wire Size: 3/0 AWG # of Conductors: 3 Conductors w/ Ground: Conductor Material: Bare Copper: Stranded or Solid: Stranded:Size Wire for 100 Amp Service. AWG, American Wire Gauge, is the US standard for sizing electrical wiring. A 100 amp breaker panel requires either #4 copper wiring or #2 aluminum or copper-clad wiring. Which wire used is determined by the voltage drop and length of the wiring. The following table reflects wiring size, length, and voltage drop:Application. Southwire® Type SE, Style SER service entrance cable is primarily used to convey power from the service drop to the meter base and from the meter base to the distribution panelboard; however, the cable may be used in all applications where Type SE cable is permitted. SER may be used in wet or dry locations at temperatures not to ...Roughly speaking, the NEC 310-16 requirement states that for a 200 amp copper or aluminum wire, you have to add 20% to the total amps for every 100 feet of distance. Example: Let’s say you want to use 200 amp service 100 feet away from the sub panel.Align breakers with wire size: 15 amp for small, 20 amp for medium, 30 amp for large. Install a 15 amp circuit breaker to receive 120 volts from the bus bar's left side. Fit a 30 amp two-pole breaker for 240-volt service to larger appliances like a clothes dryer, ensuring connection to both sides of the panel. Grounding the System:According to the NEC, the wire size for 200 amp service is a 3/0 AWG copper wire or 4/0 AWG aluminum wire. You should increase wire size by 20% for every extra 100 feet run to account for voltage drop. For a 200-amp cable size spanning over 200 feet, choose a 500 kcmil copper wire or a 1000 kcmil aluminum … See more100 to 200 amp service upgrade with aluminum/copper wiring. I am looking to upgrade my service from 100 amp fuses to 200 amp breakers, but i have some aluminum wiring in the house, mainly copper but there are a few odds and ends of aluminum wiring. Is it possible to do the upgrade without rewiring the aluminum. Note: I am in ontario canada. Share.How many breakers in a 200 amp panel; Wire size for 40 amps; Conclusion. To use a 200 amp service, you need #2/0 copper or #4/0 aluminum wiring. Contact an electrician for more information. Making sure you have the right wire size will ensure that your electrical equipment operates properly and does not cause a dangerous situation.In the world of DIY projects, having the right tools and materials is essential. When it comes to electrical wiring, one important factor to consider is the gauge size of copper wi... Wire size for 200 amp service copper, Jun 11, 2020. #6. david luchini said: 3/0. (2/0 can't be protected at 200A.) My thought was that since the generator would not be supplying 100% of the loads in the house that the rating could be adjusted by the 83% of service rating per 310.15 (b) (7). F., While looking for the ground wire for 100 amp service, it can be as thin as 10 AWG or as thick as 2/0 AWG. The minimum ground wire size for 100 amp service is 8 AWG copper or 6 AWG aluminum wire. It can change based on several factors. You will need to consider a few things before you decide on the exact ground wire size., Dr. Copper is looking ill. Dr. Copper is looking ill. Because copper is so widely used in industry, its price has a long-standing reputation as a gauge of global economic activity...., The table above explains the wire sizes for 200 Amp service at 300 ft distance. But the wire size for 100 amp service at 150 feet is drastically different.. Making Use of Copper Conductors. If your finances allow, we …, Within the last quarter, Southern Copper (NYSE:SCCO) has observed the following analyst ratings: Bullish Somewhat Bullish Indifferent Somewh... Within the last quarter, Southe..., Jump To The Right Section: What Size Wire For 200 Amp Service? What size wire for 200 amp service 100 feet away? What Size Wire For 200 Amp Service …, For a 125 amp service, you will need a 1 AWG copper wire or 2 AWG aluminum or copper-clad aluminum wire. But, if the distance is more than 50 feet, you should use 2 AWG copper wire. Also, for grounding a 125 amp service, you will need #8 AWG copper wire or #6 AWG Aluminum wire. However, several factors determine the …, Wire Size & Amp Ratings. Copper Aluminum; Wire Gauge Size: 60°C (140°F) NM-B, UF-B: 75°C (167°F) THW, THWN, SE, USE, XHHW: 90°C (194°F) ... Selecting the appropriate wire size for a circuit is crucial to prevent overheating, which can lead to damage and fire hazards. Devices and Amp Draw: ..., Calculating Wire/Cable Size formula for Three Phase Circuits. Wire Circular mils = √3 x 2 x ρ x I x L / (% Allowable Voltage drop of source voltage ) Where; Note: the Value of ρ = Specific resistance or resistivity of Conductor is used here for copper and aluminum is 11.2 and 17.4 respectively at 53° C (127° F), @Anonymous, Please take a look in the table "Copper SEC Wire Size for Long Runs for 200A Service" at the top of this page. On 2021-04-05 by Anonymous . what size wire for 200amp 140 foot run underground . On 2021-03-22 by danjoefriedman (mod) - What size service entrance cable do I need for a 100 amp service and a 150 ft. run?, The National Electrical Code requires a minimum of 2/0 AWG for copper wire and 4/0 aluminum wire or copper-clad wire when installing a 200-amp panel. However, a licensed electrician should be the one to size the service cable due to a variety of factors that needs to be considered., 2/0 Gauge Wire Service Entrance Cables . Sort By. Sort By. Compare. Southwire 500-ft CONVERSE 2/0-2/0-1 Stranded Aluminum URD By-the-roll ... Compare 1-ft 2/0 Stranded Copper Tray By-the-foot. Find My Store. for pricing and availability. Compare ..., How many breakers in a 200 amp panel; Wire size for 40 amps; Conclusion. To use a 200 amp service, you need #2/0 copper or #4/0 aluminum wiring. Contact an electrician for more information. Making sure you have the right wire size will ensure that your electrical equipment operates properly and does not cause a dangerous situation., Pre-Cut Length. The Southwire Company 250 ft. 4/0-4/0-4/0-2/0 AL SER Service Entry Electrical Cable is designed to be used as a panel feeder in multiple unit dwellings. This Cable can be used in wet or dry locations at temperatures up to 90˚C or 194˚F. Cable assembly and reinforcement tape jackets are made of sunlight-resistant, gray PVC., Advertisement Connectors are critical to today's cars. Without them, it would be nearly impossible to build or service a car. Whenever a bundle of wires passes through or attaches ..., Application. Southwire® Type SE, Style SER service entrance cable is primarily used to convey power from the service drop to the meter base and from the meter base to the distribution panelboard; however, the cable may be used in all applications where Type SE cable is permitted. SER may be used in wet or dry locations at temperatures not to ... , What Wire Size Works Best for 200-Amp Service? If you plan to install or upgrade a 200-amp electrical service panel, you can choose between copper or …, In the world of DIY projects, having the right tools and materials is essential. When it comes to electrical wiring, one important factor to consider is the gauge size of copper wi..., Key takeaways – According to the NEC, a 4-gauge copper wire is recommended, or possibly 2-gauge for distances over 200 feet, to ensure safety and efficiency. Therefore, when selecting the correct wire size for a 50 amp circuit over 200 feet, you must consider current carrying capacity, voltage drop, and distance. Let’s dive …, This wire size is one of the favorites for large-amp needs. It is the perfect 200 amp wire size with 200 ampacity (3/0 copper wire ampacity has 200A ampacity) at 75°C. It also has a very high 2.7 kA Preece fusing current (power factor is already factored in). Most 3/0 gauge wires with 85.00 mm2 cross-section are rated up to 600 volts., Mar 29, 2024 · The National Electrical Code requires a minimum of 2/0 AWG for copper wire and 4/0 aluminum wire or copper-clad wire when installing a 200-amp panel. However, a licensed electrician should be the one to size the service cable due to a variety of factors that needs to be considered. , When it comes to electrical installations and appliances, safety should always be the top priority. One critical aspect of ensuring safety is choosing the right wire size for the a..., Copper gutter guards are a worthy investment, but how do you decide on the best ones? Our guide breaks down the best copper gutter guards to choose from. Expert Advice On Improving..., Application. Southwire® Type SE, Style SER service entrance cable is primarily used to convey power from the service drop to the meter base and from the meter base to the distribution panelboard; however, the cable may be used in all applications where Type SE cable is permitted. SER may be used in wet or dry locations at temperatures not to ... , What Size Grounding Wire is Required for a 200 Amp Service? A grounding wire ranging from 2AWG to 8 AWG is recommended for a 200-amp service. You can use 8AWG (Copper) or 6 AWG (Aluminum) grounding wires for a 200-amp service. You can also use copper conductors of 4AWG and aluminum conductors of 2AWG., Do you know how to tarnish copper? Find out how to tarnish copper in this article from HowStuffWorks. Advertisement Whether it's a family heirloom, a rare coin, or handmade -- or s..., The best size of wire for 150 amp is 1 AWG copper or 2 AWG aluminum or copper-clad aluminum. If the temperature is around 194°F, use a 3 AWG aluminum wire gauge. The size of the wire should be around 1-1/4th inch wide. The right size for hot and neutral wires is 1 AWG copper or 2 AWG aluminum. For the ground wires, it is 6 AWG …, The calculator is designed to accept the total line voltage and current of the combined three cables. The equation for the area of a single wire is modified to: A = \frac {\sqrt 3 I \varrho L} {V} A =V 3 I ϱL. The factor of \sqrt 3 3 is needed to convert between the system's phase current and line current. The factor of 2 disappears, as there ..., Generally, the ground wire size for a 200 amp service ranges from 2 AWG to 8 AWG. The best one is 2 AWG for copper wire and 4 AWG for aluminum or copper-clad aluminum wire. It is recommended to use them with 1.5-2.5 inches schedule 40 or 80 PVC conduit for underground service. It may differ depending on the materials, permission rules, codes, etc., The center, which is a division of the National Weather Service, observed conditions of an extreme geomagnetic storm at 6:54 p.m. ET on Friday evening, reaching …, Copper gutter guards are a worthy investment, but how do you decide on the best ones? Our guide breaks down the best copper gutter guards to choose from. Expert Advice On Improving..., Shop Southwire 2-2-2-4 Stranded Copper SER By-the-foot in the Service Entrance Cables department at Lowe's.com. Primarily used to convey power from the service drop to the meter base and from the meter base to the distribution panelboard. , Each has a different ampacity for a specified gauge size, and these ampacities are found in NEC® Table 310.15(B)(16) for the calculations in this app. For example, 3/0 AWG copper has an ampacity of 200 amps at 75℃, while 3/0 AWG aluminum has an ampacity of 155 amps at 75℃. WIRE / CABLE TYPE: