Question: Which terminal is hot on a single pole switch?

A single-pole switch has two brass terminal screws on the side that receive the black (“hot”) wires of the circuit. One black wire comes from the power source and the other goes to the light(s).

Which terminal is hot on a switch?

The white (neutral) wire connects to the silver screw, or you place it in the back wire hole on the same side of the device as the silver screw. The black (hot) wire goes to the brass screw or into the hole in the back of the device on the same side as the brass screw.

Does it matter which terminal the load is connected to on a single pole switch?

They can have a different number of terminals and voltage capacity. Therefore, one can connect the load and power wires to either terminal. However, wiring both to the same terminal would not make the switch functional. Also, most single-pole switches have a green grounding terminal.

Does it matter which way you wire a dimmer switch?

1 Answer. Unless the new dimmer is specifically marked with LINE and LOAD or similar, it doesnt matter which wire goes to which screw/pigtail in a simple two wire switch or dimmer. Since your new switch can be used as a three way, the instructions should say which screw should not be used.

Should both black wires be hot?

Black, red, white with black or red tape will always indicate a hot wire. While white wiring is permitted— only when clearly marked with black or white tape—using any other color for a wire carrying current is strongly discouraged.

How do I know if a wire is load or line?

Load Wire - Generally connected to the top half of your switch. If the wire is coming from the top of the switch box, it is likely your load wire. Line Wire - Generally connected to the bottom half of your switch. In some cases, line wires are marked with “line”, “pwr”, or a lightning bolt symbol.

Do all switches need to be grounded?

As of the 99 NEC (National Electrical Code), it is required for all switches to be effectively grounded. If the box is metal (and the box is properly grounded) the switch yoke can serve as the grounding means (mounting screws).

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