1. What is an Aptomat?
An Aptomat (CB) is a device used to ensure the safety of the entire electrical system in the home. It can automatically cut off the circuit or protect the electrical system in case of a malfunction.
2. How to calculate the current to choose the main Aptomat
To choose the appropriate Aptomat for your home, you need to know how to calculate the basic current as follows:
Where:
- P: Power consumption of electrical devices.
- U: Voltage.
- I: Aptomat selection index.
Example: You are planning to buy an Aptomat with a total of 63 Amperes, the current in use is 220V. So the power that the Aptomat must handle is: 220 X 63 = 13,860 W.
Choose Aptomat for air conditioners
Based on the power of the different types of air conditioners, you can choose the appropriate Aptomat as follows:
- Air conditioner with 9000Btu – 2637W: Choose Aptomat 8 – 12A.
- Air conditioner with 12000Btu – 3516W: Choose Aptomat 16 – 20A.
- Air conditioner with 18000Btu – 5300W: Choose Aptomat 20 – 30A.
- Air conditioner with 24000Btu – 7032W: Choose Aptomat above 30A.
In a situation where all the air conditioners in your house use the same Aptomat, you need to calculate the power consumption of all the electrical devices, then choose an appropriate Aptomat to avoid the risk of overload or electrical short circuit.
Choose Aptomat for induction cookers
Commonly used induction cookers have power ratings ranging from 1000W, 1400W, 1800W. The method of choosing the appropriate Aptomat is the same as for other devices.
4. Some things to consider when choosing Aptomat
After knowing the formula for calculating the current in the household to choose the appropriate Aptomat, you need to research and choose quality and reputable Aptomats available on the market such as Panasonic, Sino, etc.
It is recommended to install branch Aptomats for each individual room so that in the event of a malfunction, the branch Aptomats will trip first. The main Aptomat will only trip in case of a serious malfunction or power outage.
When installing the Aptomat, you need to compile a list of the total power consumption of all electrical devices to determine the maximum current intensity. From there, choose a parameter that has a difference range of ± 30%.
Above is the most accurate guide on how to choose Aptomat for your home that we share with you. If you have any questions, please leave a comment below!
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