Which brand of 4133 relay is good

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Relay manufacturers 4133 for Huigang relays, Zhejiang that area of production, the quality is average, a few low, after all, a penny of price, such as the requirements of the first can use Xiamen Hongfa HF relay or Xiamen HHZ relay, reliable quality, cost-effective. Or you can contact me directly.

Horn protector and leakage protector in medium and high-end audio power amplifiers.

As long as there is a circuit board, almost all DC small relays are available, such as air conditioning circuit boards...

On the door of the refrigerator, the light in the refrigerator is controlled by a relay when the door is opened and closed by the refrigerator.

Do you want to disassemble it to use, the charger of the battery car has a DC relay.

There are many electrical appliances with relays, for example, washing machines, refrigerators, air conditioners, etc.

Relay (English name: relay) is an electrical control device, which is an electrical appliance that makes a predetermined step change of the controlled quantity in the electrical output circuit when the change of the input quantity (excitation quantity) reaches the specified requirements. It has an interactive relationship between the control system (also known as the input loop) and the controlled system (also known as the output loop).

Usually used in the control circuit of automation, it is actually a kind of "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit.

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The working voltage of the automotive relay coil is 12V DC or 24VThe drive current is also a bit larger. The contact current is also high. The relay coil power supply of home appliances is divided into DC 3 V, 5V, 12V, 24V, AC and 220V, and there are many contact current specifications.

A relay is an element that controls a circuit, like a TV switch.

No, relay is a type of electrical appliance often used in the secondary system of power equipment. It mainly relies on its actions to protect the safety or normal operation of the power system.

The sequeller is an electromagnetic relay. It is usually called an intermediate relay. A control element for industrial control used in relay protection and automatic control systems to increase the number and capacity of contacts. It is used to transmit intermediate signals in control circuits.

Relays, I know, renewables? Could it be that you say UPS? Wait downstairs.

Relays and contenders have the following differences:

1. Relay: It is a kind of power switch, which can realize the switch in the circuit through the switch at the power end.

2. Electrical appliances: It is a device that provides power support like a rechargeable battery.

Relay: It is a kind of switching appliance that can maintain power supply;

Continuous electrical equipment: It is a power supply equipment that can continuously output electricity.

Relays are classified according to their working principle or structural characteristics.

1) Electromagnetic relay: use the circuit in the input circuit in the electromagnet core.

It is an electrical relay that works by the suction force generated between it and the armature.

2) Solid relay: refers to a kind of relay in which electronic components perform their functions without mechanical motion components, and the input and output are isolated.

3) Temperature relay: A relay that acts when the outside temperature reaches a given value.

4) Reed relay: A relay that uses the reed action sealed in the tube and has the dual role of electric shock reed and armature magnetic circuit to open, close or convert the line.

5) Time relay: When the input signal is added or removed, the output part needs to be delayed or limited to the specified time before closing or disconnecting the controlled line relay.

6) High-frequency relay: a relay that is used to switch high-frequency, RF lines with minimal loss.

7) Polarization relay: A relay that operates by the combined action of a polarized magnetic field and a magnetic field generated by a control current through a control coil. The direction of action of the relay depends on the direction of the current flowing through the control coil.

8) Other types of relays: such as photorelays, acoustic relays, thermal relays, instrumentation relays, Hall effect relays, differential relays, etc.

2. Classified according to the overall size of the relay.

1) Miniature relays.

2) Ultra-miniature miniature relays.

3) Miniature miniature relays.

Note: For sealed or enclosed relays, the overall dimensions are the maximum dimensions of the relay body in three mutually perpendicular directions, excluding the dimensions of mounting, pinouts, ribs, crimping, flanging, and sealing solder joints.

3. Classification according to the load of the relay.

1) Micro power relays.

2) Weak power relay.

3) Medium power relays.

4) High power relay.

4. Classified according to the protection characteristics of the relay.

1) Sealed relay.

2) Enclosed relay.

3) Open relay.

5. According to the principle of action, the relay can be classified.

1) Electromagnetic type.

2) Inductive type.

3) Rectifier type.

4) Electronic type.

5) Digital type, etc.

6. The Eagle Relay is considered to be classified according to the physical quantity of the reaction.

1) Current relay.

2) Voltage relay.

3) Power direction relay.

4) Impedance relay.

5) Frequency relays.

6) Gas (gas) relay.

7. It can be classified according to the role of relay in the protection circuit.

1) Start the relay.

2) Measure the relay.

3) Time relay.

4) Intermediate relays.

5) Signal relays.

A relay is a small signal control appliance, which uses current, voltage, time, speed, temperature and other signals to turn on and off small current circuits. It is widely used in the protection of motors or lines and the automatic control of various production machinery. Because the relay generally does not directly control the main circuit, but controls the main circuit through contactors and other switchgear, the relay has a small current-carrying capacity and does not need an arc extinguishing device.

Relays have the advantages of small size, light weight and simple structure, but they have high requirements for the sensitivity and accuracy of their actions. Commonly used are thermal relays, intermediate relays, speed relays, time relays, etc.

Electromagnetic relay is a type of relay that is more widely used in relays, and there are many models in various industries. The more commonly used relays in electromagnetic relays are T73 relay, T78 relay, T90 relay, T91 relay, T93 relay, 22F relay, 32F relay, 115F relay, 14F relay, 4100 relay, 4101 relay.

Tongling Electric is a professional manufacturer of electromagnetic relays, which is trustworthy.

The relays commonly used in the industry are:

DC electromagnetic relay (5V, 12V, 24V, 36V) AC electromagnetic relay (110V, 220V, 380V, etc.) Solid state relay (this has no noise, ** high, relatively less used) time relay (hence the name, is a delay relay).

DC electromagnetic relays.

AC electromagnetic relays.

Solid state relays.

Time relays.

T73 relay, T78 relay, T90 relay, 22F relay, and 4100 relay are all more commonly used relays. Among them, T73 relay is widely used in small household appliance circuit boards and is the most commonly used relay.

Depending on the classification method, there are the following types of relays that are commonly used.

1) According to the principle of action, it is divided into: electromagnetic type, induction type, electric type, and transistor type relay.

2) According to the measured parameters, there are: electric relay such as current type, voltage type, power type, impedance type, and non-electric satin electrical appliances such as temperature type and pressure type.

3) According to the function, there are: intermediate relay, time relay and signal relay, etc.

The relay protection device is to realize the protection of the power grid according to the changes in the parameters and physical quantities of the relevant parts of the power grid during normal operation and failure. For example:

1) The relay protection that reacts to the change of current includes current quick break, timing overcurrent, reverse time overcurrent and zero sequence current protection.

2) The relay protection that reacts to the change of voltage has low voltage (or overvoltage) protection.

3) If the reaction current and the phase angle between current and voltage change, there is directional overcurrent protection.

4) The value of the change of reaction voltage and current. That is, if the impedance (or distance) from the reaction short-circuit point to the protection installation place, there is distance protection.

5) Reflect the difference between the input current and the output current, including transformer differential protection.