Relay

Your Professional Relay Supplier

We are a manufacturer of all kinds of pushbutton switches. From the factory - direct to the hands of consumers, here we save (total distribution-wholesalers-stores) and other channels, for you to provide a simple direct and effective supply! Besides our existing molded products, YongYuan also can production of products according to the drawings or samples from our customers.

Why Choose Us

24-Hour Service

Our dedicated 24-hour online support ensures prompt responses, providing you with an excellent shopping experience. Feel free to reach out with any questions at any time.

Professional technical support

We have an experienced technical team that can provide comprehensive technical support from product design and process optimization to maintenance.

Our Certificate

Under the strict management of ISO9001 quality system, environmental system ISO14001, the company's products have passed a series of international standard certificates such as UL, VDE, CCC, CE (LVD), CE (EMC).

Customized solutions

Every customer is unique, which is why we offer tailored solutions to meet your specific requirements. We offer technical support that is second to none.We take pride in our rapid response and flexibility to ensure your needs are met.

Advantages of Relay

Isolation

Relays can electrically isolate the control circuit from the load circuit, which can prevent damage to the control circuit and provide protection for the operator.

Amplification

Relays can amplify an electrical signal by using a low-power input signal to control a high-power output circuit.

High-voltage and high-current switching

Relays can switch high-voltage or high-current circuits with a low-voltage, low-current signal, which can increase the safety and reliability of the system.

Multiple Contact Arrangements

Relays can have multiple contact arrangements, such as normally open (NO), normally closed (NC), and changeover (CO) that allows versatility in the control and switching of circuits.

Long Life

Many relays have a long life expectancy and low failure rate, making them a suitable choice for applications where maintenance is difficult or costly.

Flexibility

Relays offer a lot of flexibility in the way they can be used, and can be tailored to meet a wide range of application requirements.

Types of Relay

Electromechanical Relays

These are the most common type of relay, and consist of an electromagnet that activates a mechanical switch.

Solid-State Relays

These relays use a semiconductor switching device, such as a transistor or thyristor, instead of an electromagnet to activate the switch.

Reed Relays

These are a type of electromechanical relay that use a small glass or plastic tube containing one or more reed switches.

Mercury-Wetted Relays

These relays use a small amount of mercury to create an electrical connection between the contacts.

Time-Delay Relays

These relays are used to introduce a timed delay between the input and output signals.

Latching Relays

These relays can be locked in a particular position, even when power is removed from the relay.

Overload Relays

These relays are used to protect electrical circuits from damage caused by overloads or short circuits.

Thermal Relays

These relays are used to protect electrical circuits by monitoring the temperature of the circuit and activating the switch if the temperature exceeds a certain threshold.

Characteristics of Relay

Size	103x73.5x41mm
Feature	Reversible self-locking function, optical isolation; 2-stage conversion, built-in transient overvoltage protection, interlock reversal, LED status indication.
Control voltage range	10~40V DC
Maximum input current	20mA
Turn-off voltage	2V DC
Output power	5.5KW
Load voltage range	480V AC
Maximum transient voltage	1200Vp
Minimum load current	100mA
Minimum delay turn-on time	40ms
Maximum shutdown time	20ms
Operating temperature	-20~80℃
Mode of connection	Screw fixing terminal

Components of Relay

Coil: The coil is an electromagnet that creates a magnetic field when energized by an electrical current. The coil is typically made of wire wound around a core, such as a bobbin or a core made of a ferromagnetic material.

Contacts: The contacts are the electrical terminals that control the flow of electricity through the circuit. Contacts can be normally open (NO) or normally closed (NC), or changeover (CO) depending on the design of the relay.

Armature or Mover: The armature is the part of the relay that is attracted to the coil’s magnetic field and moves the contacts.

Yoke: The yoke is a metal frame that surrounds the coil and provides a path for the magnetic field.

Core: The core is part of the coil and acts as a magnetic path.

Housing: The housing is the outer shell of the relay that protects the internal components.

Terminal: The terminal is a place where the relay connects to the circuit.

Spring: Spring is used to hold the contacts in a certain position or to return the armature back to its original position.

Diode: Some relays have a diode to protect the coil from high voltage spikes caused when the contacts open.

Small High Power Relay With Two Set Contact

Applications of Relay

Automotive

Relays are used in cars and trucks for a wide range of applications such as lighting, fuel injection, ignition, and power windows.

Industrial control

Relays are used in industrial control systems for applications such as motor control, process control, and temperature control.

Telecommunications

Relays are used in telephone exchanges and other telecommunications equipment for switching and routing signals.

Household appliances

Relays are used in appliances such as refrigerators, washing machines, and air conditioners for controlling motors and other components.

HVAC systems

Relays are used in heating, ventilation, and air conditioning systems for controlling motors and other electrical devices.

Computers and electronic devices

Relays are used in computers and other electronic devices for switching and routing signals, and for controlling power to various components.

FAQ

Q: What are the advantages of a relay?

A: Advantages of a Relay
Relays offer several key advantages: Electrical Isolation: Relays isolate the control and high-power circuits, protecting sensitive components from high voltage or current. Remote Control: They enable remote control of systems, adding flexibility across various applications.

Q: What is the main purpose of a relay?

A: The primary purpose of a relay is to protect the electrical system from too high of a voltage or current, allowing the safe operation of any equipment it connects to. They're commonly found in a variety of applications, from commercial and industrial uses to home and consumer products.

Q: What is the key job of the relay?

A: The main job of a relay is to switch a circuit on the basis of a different low-power signal or several signals. For example, a small current from a control circuit can energise the relay which then closes a circuit for a larger high power current.

Q: What is the working principle of a relay?

A: The relay permits a small amount of electrical current to control high current loads. When voltage is supplied to the coil, small current passes through the coil, resulting in a larger amount of current passing through the contacts to control the electrical load.

Q: What are the three basic functions of a relay?

A: Relays are commonly used in various electrical and electronic applications to perform tasks such as switching high-voltage loads with a low-voltage control signal, amplifying weak signals, providing isolation between circuits, and allowing for the automation of complex processes.

We're professional relay manufacturers in China, providing customized relay for sale. Feel free to wholesale relay and get quotation from our factory.