0
What size conductors for 3 phase 175 amp circuit breaker 120-208 thhn copper 25' in sch 40 PVC?
Wiki User
∙ 11y ago
A 2/0 copper conductor with an insulation factor of 90 degrees C is rated at 195 amps. It is not stated if this is a motor feeder, if it is, the feeder has to be rated at 125% of the motors full load amperage. If this is a service and the 175 amps is the main disconnect rating then the 2/0 will work fine.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What size of electrical wire needed for 100A circuit breaker?
For a 100A circuit breaker, you typically need a wire size of #2 AWG (American Wire Gauge) for copper conductors or #1/0 AWG for aluminum conductors. It is important to consult the National Electrical Code (NEC) or a qualified electrician to determine the appropriate wire size for your specific installation.
Have 30 amp double pole need 15 amp 120v?
You can use a 15 amp single pole breaker to convert your 30 amp double pole breaker to 15 amp 120v. Simply replace the 30 amp breaker with the 15 amp breaker in the circuit breaker panel. Make sure to match the wire size in the circuit with the appropriate amperage rating of the new breaker.
What is the minnimum size equipment grounding conductor required by the NEC for a branch-circuit protected by a 50-ampere rated circuit breaker?
The minimum size equipment grounding conductor required by the NEC for a branch circuit protected by a 50-ampere rated circuit breaker is 10 AWG copper or 8 AWG aluminum.
What article in the NEC tells you what size breaker is used for 14awg 120v receptacle?
The article designations may change with the code cycle year. In the 2005 NEC see table 310-16 (allowable ampacities for conductors), also article 240.4(D) (protection of small conductors), also table 210.24 (summary of branch circuit requirements for muti-outlet branch circuits)
Can a double pole 20 amp breaker be used with 12-2 wire for a single 220 circuit?
Yes, a double pole 20 amp breaker can be used with 12-2 wire for a 240V circuit. However, make sure the device you are connecting requires 240V and not 120V. Also, consult local electrical codes and regulations to ensure compliance with safety standards.
What are good conductors for a closed circuit?
silver, copper are generally used in electric circuits
What are the conductors in a circuit?
Conductors in a circuit are materials that allow the flow of electricity. Common examples include copper, aluminum, and gold. They have low resistance and are used to connect components together to complete a circuit.
What are conductors of elecricity?
Conductors are materials that allow the flow of electricty in a circuit. Examples are metals, the two most common used being copper and aluminum.
Can a double pole 20 amp breaker be used with 12-2 wire for a single 220 circuit?
Yes, a double pole 20 amp breaker can be used with 12-2 wire for a 240V circuit. However, make sure the device you are connecting requires 240V and not 120V. Also, consult local electrical codes and regulations to ensure compliance with safety standards.
What materials allows electricity to flow through easily?
Conductors do, one example is copper.
What is the margin of safety with selecting circuit breakers?
The NEC requires that if the intended rating of a circuit corresponds to a standard size breaker then that size breaker must be used. In most instances, "rating of a circuit" means the intended connected load plus 25%. If the intended rating of a circuit does not correspond to a standard size breaker, you can go up to the next standard size without any other adjustments. In most circumstances, besides what I've already stated, a 14 gauge copper wire cannot be connected to a breaker larger than 15 amps, 12 gauge copper to a 20 amp breaker, and 10 gauge copper to a 30 amp breaker.
What is the ampacity of the 14 conductors in the conduit application?
14 AWG copper conductors are limited in the NEC to 15 amps. You must protect them with an overcurrent device such as a breaker or fuse not exceeding 15 amps.
What is the minnimum size equipment grounding conductor required by the NEC for a branch-circuit protected by a 50-ampere rated circuit breaker?
The minimum size equipment grounding conductor required by the NEC for a branch circuit protected by a 50-ampere rated circuit breaker is 10 AWG copper or 8 AWG aluminum.
What article in the NEC tells you what size breaker is used for 14awg 120v receptacle?
The article designations may change with the code cycle year. In the 2005 NEC see table 310-16 (allowable ampacities for conductors), also article 240.4(D) (protection of small conductors), also table 210.24 (summary of branch circuit requirements for muti-outlet branch circuits)
How circuits and conductors work together?
Circuits require conductors to allow the flow of electric current. Conductors are materials that can easily carry electric charge, such as copper wires. When a circuit is connected with conductors, the electric current can move through the circuit, creating the flow of electricity needed to power devices. Conductors help complete the circuit and provide a path for the electrons to travel from the power source to the load.
Have 30 amp double pole need 15 amp 120v?
You can use a 15 amp single pole breaker to convert your 30 amp double pole breaker to 15 amp 120v. Simply replace the 30 amp breaker with the 15 amp breaker in the circuit breaker panel. Make sure to match the wire size in the circuit with the appropriate amperage rating of the new breaker.
What are some good conductors for a closed circuit?
Good conductors for a closed circuit include metals such as copper, silver, and gold. These materials have high electrical conductivity, allowing the flow of electrons through the circuit with minimal resistance. Other conductive materials like aluminum and iron can also be used in closed circuits.
