Chat with our AI personalities
As far as I know there is no -33 gage wire. If you meant + then that would be the thinnest so 0 is the answer
Ground is sized based on the size of the feeder wire and not the amps of the service! However, for a 600 amp service 1500MCM copper wire is one option (NEC 310.16) ;therefor, ground wire is 3/O copper (NEC 250.66) or another option is a two sets of 350 MCM copper wire then a #2 copper (since the biggest feeder wire is 350MCM).
They refer to the number of I/O lines (not power) needed to transfer data between to processors/controllers.3 wire serial has a bidirectional data line, a clock line, and a master/slave line.2 wire generally is clock and data.
Notes: 1. Where multiple sets of service-entrance conductors are used as permitted in Section 230-40, Exception No. 2, the equivalent size of the largest service-entrance conductor shall be determined by the largest sum of the areas of the corresponding conductors of each set. 2. Where there are no service-entrance conductors, the grounding electrode conductor size shall be determined by the equivalent size of the largest service-entrance conductor required for the load to be served. 1 This table also applies to the derived conductors of separately derived ac systems. 2 See installation restrictions in Section 250-64(a).
Take a wire from one of the line terminals L1 to one side of the contactor coil. Take another wire from the second line terminal L2 and put it to one side of a N.C. contact on the overload block. From the other side of the N.C. contact on the O/L block take a wire to the N.C. terminal on the pressure switch. From the other side of the N.C. contact on the pressure switch terminal connect the wire to the other side of the coil. This configuration will be using the same coil voltage on the contactor as that of the supply voltage.