protector of life key

 

One of the most useful protection keys is the life protection key, whose main function is to protect people and equipment from possible dangers. This switch is known as differential switch, residual current switch and differential current switch.

The function of the life guard switch is to measure the amount of input and output current in the equipment so that it can be informed of problems such as electric leakage and shocks caused by direct contact.

The safety fuse measures the amount of input current and output current, if this current is the same in the return path, it indicates the correct operation of the system; But if there is any discrepancy, the circuit will be cut; Because such conditions indicate electricity leakage between the phase and neutral wires.

Since the leakage of electricity causes a fire in the building or electrocution, the safety switch cuts off the current in a fraction of a second to prevent accidents.

 

Benefits of buying a lifeguard key from JBH

As much as electrical equipment is dangerous, it can prevent accidents and be useful; For this reason, we recommend that you equip your home or workplace with safe and high-quality equipment so that you can enjoy a safe environment with peace of mind.

jbh engineering technical team with years of brilliant history with the help of its technical team and specialized knowledge has been able to produce and supply the safest and most diverse equipment related to the electrical industry such as thermostat, life protector and electrical protector with 3 years unconditional warranty.

One of the most important advantages of jbh products is combining several functional products with each other, which allows you to significantly save costs and compensate for the problems related to the lack of space in the electrical panel.

 

Introducing the types of life preservers

Life-saving switches or RCD (Residual Current Device) are divided into two general categories, RCCB and RCBO, which we will discuss in detail below.

 

RCCB switches

RCCB switches or leakage current cut-off switches are responsible for protecting equipment and people against electrical leakage. This general type of life protector does not have overload protection.

• RCBO keys

RCBO switches are among the life protection switches that detect the amount of overload in addition to leakage current, and their main function is to protect equipment and people against load protection. This type of key is known in the market as a combination life guard key.

In Europe, this type of key is known by the same name; But in Canada and America it is known as GFCI.

In addition to the mentioned cases, there are other types of life protection switches that are classified according to the type of phase and amperage, and the most commonly used ones include single-phase life protection, three-phase life protection, three-phase life protection 63 amps and life protection 25 amps. .

 

The price of the life guard key

If you are planning to buy a life-saving key, it is better to compare the price of this product with other products before buying. The price of the life-saving switch, including the three-phase, single-phase life-saving switch, etc., depends on various factors, the 4 most important of which are authenticity, quality, model, and brand.

Model

Life-saving keys have different models, which differ in price due to their different functions and tasks; For example, the 4-pole safety switch used for industrial workshops has a higher price than the two-pole safety switch.

• originalityBy buying original products, you can benefit from higher quality, better and safer services, and the most important guarantee. Counterfeit products, apart from not being of sufficient quality, can also be dangerous.Since electrical equipment plays an important role in the home, you should buy the best type so that your mind is at ease in all aspects.

• QualityOne of the most important things that affects the price of a life protector is the quality of the product. Reputable brands usually use the best materials in the production and design of electrical equipment; Therefore, the price is more different from the low-quality samples in the market.
• brandDifferent brands announce different prices for their products due to their work experience or greater reputation; But considering customer satisfaction and fairness, JBH offers the best brand of lifeguard key at a reasonable price.

Get to know the components of the life preserver

Each protective key consists of several important components, which we will introduce below.

Odd terminals: related to key input
Paired terminals: related to key output
IN: circuit current
IXN: life-saving leak-sensitivity current
UN: circuit voltage
TEST button: to check the function of the key
Terminal N: terminal for null
0 and 1 sign: one indicates that the key is connected and 0 indicates that the key is disconnected.
Indicator: It shows the on and off status of the life guard.

What are the uses of the life guard key?

The life protector has various uses and since it has an important and dangerous task, it is recommended to use it in the electrical system of your homes and workplaces.

In the following, we will briefly explain some examples of the most important life-saving applications.

 

• Entrance electrical panelInstalling a safety switch in the electrical panel can prevent risks such as fires caused by overload and short circuit.

 

• Switches and socketsBy installing the safety switch in the switch and outlet, you can avoid risks such as electric shock.

 

• Wet areas such as bathrooms and toiletsSince the skin is wet in humid environments and the body is sensitive to electric current, you can prevent electric current leakage by installing a life-saving switch.

 

How is the current test of the safety switch?

To test the current of the three-phase, single-phase life-saving switch… first of all, we need a lamp with a low wattage. The power of the said lamp should not be less than 8 watts; Because most life-saving switches have a sensitivity of 30 milliamps; However, for those life protectors that have a sensitivity of 300 mA, you can use a watt lamp.

In the first step, you must connect the 220 V city electricity to the input IN and N terminals, similar to the previous test.

Connect the two ends of the lamp wire to the OUT and N output terminals at the bottom.

Raise the thumb of the life guard key and activate the ON status in this key; This will turn on the lamp.

At this stage, you should disconnect the wire connected to the N terminal at the output and contact the N terminal at the input for a moment; For this purpose, it is enough to connect only the end of the wire to the screw of the N input terminal.

As soon as the wire touches the input terminal N, the lamp must be turned on for a moment and then the safety switch immediately cuts off the circuit; It means turning the thumb from ON to OFF.

If for any reason the above process is not completed and the circuit breaker does not cut the circuit and the lamp remains on, it means that your breaker switch is broken and lacks the necessary sensitivity in operation.