The upper and lower switch is a common type of mechanical switch that is characterized by having two positions: up and down. This kind of switch is usually used to control some simple equipment, such as drawers, cabinet doors, etc. When wiring, the switch needs to be connected with the corresponding circuit to realize the function of the switch. The wiring method of the upper and lower switches will be described in detail below.
Prepare tools and materials.
The following tools and materials need to be prepared before wiring:
Phillips screwdriver.
Diagonal pliers. Up and down switches.
Wire (select length and color as needed).
Insulating tape. Decide how you want to connect.
There are usually two types of connection for the upper and lower switches: series and parallel.
Series connection: The contacts of the upper and lower switches are connected with the power supply and the load respectively, so that the switch can control the on/off of the circuit. It is suitable for occasions where the power supply needs to be controlled on and off.
Paralleling: The contacts of the upper and lower switches are connected with two branches of the same circuit respectively, so that the switch can select one of the branches to turn on. It is suitable for occasions where multiple circuit branches need to be selected.
Wiring steps. 1) Serial connection.
The steps are as follows: Use a Phillips screwdriver to disassemble the mounting plate of the upper and lower switches to expose the internal terminals.
Strip off the insulation of the wire in a small section to a length of about 2cm.
Connect one end of the wire to one of the terminal blocks of the upper switch and secure it with a screw.
Connect the other end of the wire to the other terminal block of the lower switch and secure it with screws.
Reinstall the mounting plate and secure it with screws.
Turn on the power supply and test whether the switch can work properly.
2) Parallel connection.
The steps are as follows: Use a Phillips screwdriver to disassemble the mounting plate of the upper and lower switches to expose the internal terminals.
Strip off the insulation of the wire in a small section to a length of about 2cm.
Connect one end of the wire to one of the terminal blocks of the upper switch and secure it with a screw.
Connect the other end of the wire to the other terminal block of the lower switch and secure it with screws.
Reinstall the mounting plate and secure it with screws.
Turn on the power supply and test whether the switch can work properly.
Safety Precautions.
1) Be sure to disconnect the power supply before wiring to avoid electric shock accidents.
2) Use insulating tape to wrap the exposed wire part well to prevent electric shock or short circuit.
3) Pay attention to the direction and position of the switch when wiring to ensure the correct connection.
4) After completing the wiring, check and test to ensure that the switch can work normally.
Maintenance. 1) Regularly check whether the fasteners of the switch are loose, and tighten them in time if necessary.
2) Regularly clean the dust and dirt on the surface of the switch and keep it clean.
3) If the switch is found to have poor contact or abnormal operation, it should be overhauled or replaced in time.
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