Aptomat chống giật là gì ? Cấu tạo và nguyên lý hoạt động của Aptomat chống giật

Electrical accidents affect people greatly and can even lead to death. Safety in the electrical system is always top priority. Make sure your home’s electrical system has been installed with an anti-shock Aptomat to protect you and your family.

1. What is an anti-shock circuit breaker?

Anti-shock circuit breaker is also known as anti-shock circuit breaker, anti-shock circuit breaker, anti-leakage circuit breaker, anti-leakage circuit breaker… Similar to regular circuit breaker, anti-shock circuit breaker has the following types:

• RCCB (Residual Current Circuit Breaker) anti-shock circuit breaker.
• The shrimp-shaped anti-shock circuit breaker has RCBO (Residual Circuit Breaker with Overcurrent protection) overload protection.
• The block-shaped anti-shock circuit breaker has ELCB (Earth Leakage Circuit Breaker) overload protection.

Schneider Electric anti-shock circuit breaker

2. Function of anti-shock circuit breaker, anti-leakage circuit breaker

The anti-shock circuit breaker (anti-shock circuit breaker) will turn off the power when there is current leakage to the ground or someone is electrocuted. In addition, the ELCB and RCBO anti-shock Aptomat also has an overload protection function similar to the regular Aaptomat. Meanwhile, RCCB only has the function of preventing leakage current, needing to be combined with MCB for overload protection. RCCB + MCB = RCBO.

• Single-phase anti-shock circuit breaker: it compares the current flowing through the two wires, ground and fire. If this current differs by more than a certain leakage threshold, it will disconnect power from the load, not allowing the load to work anymore. Manufacturers often design leakage thresholds of 15mA, 30mA, 100mA, 200mA, 300mA, 500mA.
• 3-phase anti-shock circuit breaker: it compares the current flowing through the 3 phase wires and the neutral wire. If this current differs beyond a certain leakage threshold, it switches off.

3. Structure and operating principle of anti-shock circuit breaker, anti-leakage circuit breaker

Principle diagram of 1-phase anti-shock circuit breaker

Anti-shock circuit breaker used for 1 phase: people let 2 wires, cool and fire, pass through a current transformer with a toroidal iron core. This is a regular toroidal core transformer with a primary coil of 1 wire turn (which is 2 wires of cool and fire going through the center of the transformer) and a secondary coil of a few dozen turns of wire. As we know: the currents going out from the hot wire to the cool wire (and vice versa: from the cool wire to the hot wire) are in opposite directions, which means that the changing magnetic fields they create in the iron core of the current transformer are in opposite directions.

If these two currents are equal, the two fluctuating magnetic fields will cancel each other, making the output voltage of the secondary coil of the current transformer = 0. If the voltage through the two wires is leaky, the current on the two wires is different, two fluctuating magnetic fields are generated in different iron cores, causing an induced current to appear on the secondary coil of the current transformer. This current is fed into the IC to check if it is greater than the safe leakage current? If greater than 15mA, for example, the IC will supply power to the Triac to power the Aptomat’s suction coil.

To detect large leakage currents of several hundred mA, there is no need to use an IC (because the IC circuit is complex and high cost), but immediately use the electromagnetic force created when current flows in the coil to turn on and off the circuit breaker.

Anti-shock circuit breaker for 3-phase, 3-wire electricity: similar to above with 3 phase wires passing through the center of the current transformer.

Anti-shock circuit breaker for 3-phase 4-wire electricity: similar to above with 3 phase wires and neutral wire passing through the center of the current transformer.

4. Technical specifications of anti-shock circuit breaker, anti-leak circuit circuit breaker

Anti-shock circuit breakers are divided into two basic types: those with only anti-shock function (RCCB) and those with overload protection function (RCBO, ELCB). Depending on each type, there may be all or some technical specifications as follows:

Technical specifications of ELCB anti-shock circuit breaker from LS brand

• Print : Rated current.

For example: Mitsubishi NV125-SV 3P 100A 25kA 30mA block anti-shock circuit breaker has In = 100A. When the current is greater than 100A, the circuit breaker will operate.

• Leakage current : Anti-shock circuit breaker is usually made with fixed leakage current at 15mA, 30mA or adjustable leakage current at 100mA / 200mA / 300mA / 500mA (with a lever to select the corresponding leakage current level). When the leakage current exceeds the above leakage current, the anti-shock circuit breaker will operate.
• Ue : Rated working voltage.
• Icu : Short-circuit breaking current is the contact’s ability to withstand the maximum current in 1 second.
• Icw : Ability to withstand short-circuit current in 1 unit of time.
• Ics : actual cutting ability when a device failure occurs. This ability depends on each manufacturer due to different manufacturing technology.

For example: the same manufacturer but has 2 types of ELCB: Ics = 50% Icu and Ics = 100% Icu. Anti-shock circuit breaker EBN103c 3P 100A 18kA 100/200/500mA has Ics = 100%Icu.

• AT : Ampere Trip (impact current).
• AF : Frame Ampere (frame current). For example, NV250-SV 3P 200A 36kA 30mA and NV250-SV 3P 250A 36kA 30mA both have AF = 250A but one will operate when the current exceeds AT = 200A, the other will operate when the current exceeds AT = 250A. The AT/AF parameter indicates the durability of the switching contact.

For example, the ELCB 250AT/400AF anti-shock circuit breaker will have higher durability than the 250AT/250AF circuit breaker. The size of the 400AF anti-shock circuit breaker is also larger and the price is higher.

• Mechanical / electrical endurace : Number of mechanical switching times allowed / number of electrical switching times allowed.

5. Shape characteristics of anti-shock circuit breaker, anti-leakage circuit breaker

• The anti-shock circuit breaker has the same shape as a regular circuit breaker but is the same size or slightly larger.
• In addition to the ON-OFF lever, the anti-shock aptomat also has an additional TEST button next to it to check if the aptomat is working well.
• On the surface of the anti-shock circuit breaker, the following parameters are recorded: voltage, load current, impact time and leakage current. Normally there are leakage current thresholds of 15mA, 30mA, 100mA, 200mA, 300mA, 500mA.

Anti-shock circuit breaker RCCB, RCBO from Mitsubishi

6. Instructions for choosing anti-shock circuit breaker and anti-leak circuit circuit breaker

When choosing an anti-shock Aptomat, you need to pay attention to the following issues to avoid making the wrong choice and not being able to use it:

6.1. Select anti-shock circuit breaker by type

Anti-shock circuit breaker with overload protection function (RCBO, ELCB) can be used to replace regular circuit breaker, but because of its more complex structure, this type usually has low short-circuit current. Using RCBO, ELCB after the circuit breaker will often protect the electrical system better. Aptomats with only anti-shock function (RCCB) are required to be installed after regular aptomats.

6.2. Select by number of phases/number of poles

The most common mistake is choosing a 3-phase (3-pole) anti-shock circuit breaker to install in a 3-phase mixed load system (1-phase load, 3-phase load, neutral use) leading to the anti-shock circuit breaker jumping. For mixed 3-phase loads, a 4-phase anti-shock circuit breaker must be used (also known as 3-phase 4-pole, 3P + N). For single-phase electricity (1 phase wire + 1 neutral wire), a 2-phase circuit breaker must be used (1 phase 2 poles, 1P + N). 3-phase 3-pole anti-shock circuit breaker can only be used for 3-phase 3-wire loads without neutral like 3-phase motors.

6.3. Select by rated line

For RCBO, ELCB chooses the rated current based on the used capacity similar to choosing a regular circuit breaker. For anti-shock circuit breaker without RCCB overload protection, choose a rated current equal to or greater than the rated current of circuit board normally installed with the RCCB.

6.4. Select according to leakage current

Anti-shock circuit breaker usually has 3 types according to leakage current 15mA, 30mA, 100/200/500mA. Normally, small systems and residential areas use 30mA leak-proof circuit breaker. Large capacity production areas often use 100/200/500mA leak-proof circuit breaker.

7. Notes when using anti-shock circuit breaker and anti-leak circuit circuit breaker

• Do not use in wet places. When installing an anti-shock circuit breaker for a water heater, you should choose a location outside the bathroom.
• Must test before use. Test at least once a month to check if the device is still working well?
• When installing an anti-shock circuit breaker, above the circuit breaker is the input voltage, below is the load output voltage. If you connect it in reverse, the circuit breaker will die as soon as there is current.

8. Famous anti-shock Aptomat and anti-leakage Aptomat brands are popular on the market

Anti-shock circuit breaker is an important device in electrical systems, however, due to complex manufacturing, the price is several times higher than regular circuit breaker. Therefore it is not as commonly used as regular Aptomat. The manufacturer also does not produce as many diverse product codes as regular Aptomat.

On the market today, there are many manufacturers of anti-shock circuit breakers (anti-shock circuit breakers) used for 1-phase and 3-phase electricity such as:

– RCCB anti-shock circuit breaker, RCBO anti-leak current circuit breaker, Mitsubishi brand ELCB.

– RCCB anti-shock circuit breaker, RCBO anti-leak current circuit breaker, LS brand ELCB.

– RCCB anti-shock circuit breaker, RCBO anti-leak current circuit breaker, Schneider brand ELCB.

RCCB anti-shock circuit breaker, RCBO anti-leak current circuit breaker, Schneider brand ELCB

8. Where to buy Schneider Anti-Shock Aptomat, Schneider Anti-leakage Aptomat, Reputable, Genuine, Cheap, High Quality?

Schneider anti-shock circuit breaker and anti-leak circuit circuit breaker can now be found in many places. However, choosing anti-shock circuit breaker and anti-leakage circuit breaker suitable for the current and purpose is not easy.

Trường THPT Chuyên Lê Hồng Phong is the official distributor of Anti-Shock Aptomat Equipment, Schneider Anti-Leakage Aptomat will be a reliable address.

At Trường THPT Chuyên Lê Hồng Phong, you will be advised on the most suitable and satisfactory equipment and instructions on how to best use and preserve the products. With advice from a team of staff and engineers with many years of experience in the industry, you will definitely not be disappointed.

8.1. Price list of Schneider anti-shock circuit breaker, Schneider anti-leak circuit circuit breaker

Please click on the link below to download Price list of Schneider Anti-Shock Aptomat

8.2. Commitments when buying Anti-shock Aptomat, Anti-leakage Aptomat at Trường THPT Chuyên Lê Hồng Phong

• Brand new, 100% genuine Schneider anti-shock circuit breaker, anti-leak circuit circuit breaker.
• COCQ documents, full invoices.
• Competitive price.
• Full genuine warranty.
• Supports quick delivery in Ho Chi Minh City, Binh Duong, Long An and neighboring provinces.

More information about anti-shock circuit breaker, anti-shock circuit breaker, anti-shock circuit breaker

1. INSTRUCTIONS on how to choose an anti-shock circuit breaker for your household
2. Should you use an anti-shock Aptomat for your home’s electrical system?
3. The difference between two types of anti-shock and anti-leakage CB
4. Instructions on how to correctly connect a Schneider anti-shock CB are extremely simple
5. Instructions on how to test anti-shock CB most accurately and safely
6. Tell you how to fix the anti-shock CB when it jumps continuously
7. What is an anti-shock circuit breaker? Should I install an anti-shock circuit breaker for my family?
8. Gain experience in purchasing anti-shock aptomat that suits your needs
9. How much does the anti-shock block circuit breaker cost? Is it expensive?
10. 5 reasons Schneider anti-shock circuit breaker is always “BEST CUSTOMERS”
11. 10 reasons you should choose RCBO Schneider anti-shock CB Aptomat
12. Compare 1-phase and 3-phase Schneider RCBO anti-shock circuit breaker
13. How many types of Schneider anti-shock circuit breakers are there?
14. What is an anti-shock block circuit breaker? Which type should I use?
15. Important anti-shock circuit breaker parameters to know
16. How should I choose an anti-shock Aptomat?
17. Anti-shock circuit breaker: How to choose and how to install
18. Which type of anti-leak circuit circuit breaker is good and highly safe?
19. What is an anti-shock circuit breaker? Structure and operating principle of anti-shock Aptomat
20. Important anti-shock circuit breaker parameters to know
21. Need to buy Genuine and Reputable Schneider Anti-shock Circuit Breaker at Cheap Price in HCMC

For more detailed advice on Schneider Electric surge protection devices and product quotes, please contact Phan Khang Dien immediately!

PHAN KHANG ELECTRICAL COMPANY LIMITED

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