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You can pull 10 #3 gauge wires in a 2 1/2" conduit.
For new 200 amp services the conduit size should be 3 inch PVC.
A trade size hole for a 2-1/2" EMT conduit connector, the hole needs to be 2-7/8" in diameter. A 3" rigid conduit can also use this size hole without the lock nuts falling into the hole.
The required size of a conduit raceway for a 3-5000 mcm wire is 300 kcmil. It maximizes the limits on the wire fill for raceways.
Conduit is just a medium to get the wires from one place to another. There is no voltage restrictions in low voltage wiring (750 volts or less). When it comes to conduit fill, electricians are governed by the electrical code conduit fill tables. The conduit is sized to accommodate the conductor size for a specific load.
The amount of conductors per conduit size example code says 3 number 4 conductors in a 1'' conduit
The recommended PVC conduit size for accommodating a 6-3 wire is 1 inch.
For accommodating 4/3 wire, a 1-inch conduit size should be used.
The recommended conduit size for accommodating 6/3 wire is typically 1 inch in diameter.
The appropriate conduit size for accommodating 6/3 wire is typically 1 inch in diameter.
You can pull 10 #3 gauge wires in a 2 1/2" conduit.
For new 200 amp services the conduit size should be 3 inch PVC.
For accommodating 8/3 wire, a 1-inch conduit should be used.
For accommodating 6/3 wire, a 1-inch conduit should be used.
For 10/2 wire, a 3/4 inch conduit should be used.
A trade size hole for a 2-1/2" EMT conduit connector, the hole needs to be 2-7/8" in diameter. A 3" rigid conduit can also use this size hole without the lock nuts falling into the hole.
The required size of a conduit raceway for a 3-5000 mcm wire is 300 kcmil. It maximizes the limits on the wire fill for raceways.