Article 430 in the National Electrical Code (NEC) is titled “Motors, Motor Circuits and Controllers.” As the scope of the article states, it covers motors, motor branch-circuit and feeder conductors, motor branch-circuit and...
As stated in 240.4 in the National Electrical Code (NEC), conductors, other than flexible cords, flexible cables and fixture wires, shall be protected against overcurrent in accordance with their ampacities specified in 310...
Article 430 in the National Electrical Code (NEC) covers motors, motor branch-circuit and feeder conductors and their protection, motor overload protection, motor control circuits, motor controllers, and motor control centers...
As the first sentence of the National Electrical Code (NEC) states, the Code’s purpose is the practical safeguarding of people and property from hazards arising from the use of electricity [90.1(A)]. This first section...
Recently, a question came up about applying the National Electrical Code (NEC) to achieve minimum compliant overcurrent protection for a general motor circuit to protect both the motor and conductors. This column reviews the...
Article 430 in the National Electrical Code (NEC) covers motors, motor branch-circuit and feeder conductors and their protection, motor overload protection, motor control circuits, motor controllers, and motor control centers...
Chapter 4 of the National Electrical Code (NEC), Equipment for General Use, contains 22 articles. Some of the articles include provisions pertaining to switches, receptacles, switchboards and panelboards, industrial control...
