Three Phases Elevator Box
Three-phase elevator box is installed in the latest step of the process in the elevator machine room. This part is responsible for supplying the electric power of all elevator parts in the machine room and other cabin equipment. The elevator will be out of service if electric power is not supplied properly. This box should be in three phases for security reasons.
Of course, the elevator box can be single-phase too, which is called the single-phase elevator. These elevators also work in times of blackouts, yet they are mostly used in home lifts.
The mechanism of three-phase elevator box
The three-phase elevator box supplies the required power for the engine, control board, well and pit, and the elevator machine room. To install this box, the electric wiring and initial elevator launch should be complete. This box is installed near the machine room door at 120 to 140 cm height, from the floor, using 4 bolts and rawlplugs. This box can also be installed near the elevator command panel.
The elevator power is supplied using a 5-cord cable from a collective electricity meter. The number of this cable is determined depending on several parameters, including engine power, engine efficiency and elevator capacity.
The components of the three-phase elevator box
This box consists of inner components of a neutral and earth connection busbar, plus three-phase terminals. Three-phase elevator box consists of three-and-single phase electricity distribution components:
Cabin and pit light keys
Machine room ventilation and light key
Wires and channels.
Single and three phase fuses
Input and output terminals
thermostat
Plug
Rotary key
Three 25 and 50 ampere fuses (depending on type of application and capacity of the elevator)
Three signal bulb
Earth bolt
The difference between single-phase and three-phase elevator
Below, you can see the difference between single-phase and three phase elevator boxes:
Three-phase | Single-phase | Features |
| Contactor with single blade | Contactor |
Three wires (2 phase wire and a neutral wire) 380 voltage and potential discrepancy | Only a phase and neutral wire. Phase wire is 220 voltages | Elevator wire |
Easier use from two left and right directions | Two directions (left and right) are usable only using rotors | Rotating direction |
More power consumption | Less power consumption | Power consumption |
For high-capacity elevators | For residential elevators with 6-8 capacity | Usage |
More cost | Less cost | Cost |
More power | Less power | Power |
Less amortization | More amortization | amortization |
Please consider that it is not possible to use single-phase boxes in all cases and the necessary conditions to install a three-phase elevator box should be met.
The price of a three-phase elevator box
Depending on the type of and the quality of the parts used inside the box, the price of it can vary. An expert person should determine the type and quality of the required parts. Therefore, elevator experts can visit your project to provide a proper elevator box considering your project requirements.
Installing a three-phase box
As mentioned earlier, a three-phase elevator box is one of the important parts that are used in the final installation process. It needs technical knowledge and expertise to equip and install this box, therefore you need to get help from an elevator expert. To safely install the elevator three-phase box, Owjlift Company receives help from technical and expert technicians and makes sure that your device is performing well and securely, by providing elevator maintenance services.
Elevators using this part
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Common Questions
What is the responsibility of the elevator three-phase box?
The elevator three-phase box supplies the electric power of all elevator parts in the machine room and other cabin equipment.
What is a single-phase elevator?
The elevator using a single-phase box is called the single-phase elevator.
How many phases does elevator electricity require?
Elevator electricity requires single and three-phases, the latter provides the best performance for the elevator.