DC 12V Relay
Your Professional DC 12v Relay Supplier
Welcome to the classification zone of our DC 12V Relay! In this zone, there are various kinds of DC 12V relays, each for different application scenarios. Whatever you are doing with your industrial automation, automotive circuit design, or home appliance maintenance, you can find here the solution that best suits you.
Why choose our relays?
Provide the best products with the most professional services
Diversified choices
Provide multiple models to adapt to different current, voltage, and control requirements.
High quality assurance
All products undergo rigorous testing to ensure stability and durability.
Professional service support
We provide selection suggestions and technical support to ensure worry free purchasing.
-
![12VDC Transparent Relay]()
12VDC Transparent RelayThe contact configuration of QIANJI's MK series plug-in installation multifunctional non locking relay is 4PDT. The universal relay is driven by a 12VDC coil voltage and a 10A switching current.read more -
![10a 12v General Purpose Relays]()
10a 12v General Purpose RelaysThe 10A 12V universal relay is a high-performance, reliable electrical component designed for reliable electrical switch control. It operates stably under different low voltage conditions, can...read more -
![12v Dc Relay Switch]()
12v Dc Relay SwitchThe 12V DC relay switch is a multi-functional and reliable electrical component designed for low voltage circuits. It provides excellent electrical control performance, enabling the easy switching...read more -
![Industrial Control Relay]()
Industrial Control RelayIndustrial control relay is an electrical switch component designed specifically for industrial use, with a 1.5w coil power and 10A switching current, applied to the continuity of controlled...read more -
![Intermediate Relay With Socket]()
Intermediate Relay With SocketThe intermediate relay with socket is a device designed specifically for controlling power circuits, aiming to provide a safe and reliable operating method. Its voltage is 12V, 24V, 48VDC...read more -
![12 Volt 20 30 Amp Relay]()
12 Volt 20 30 Amp RelayUse our 12 volt 20/30 ampere relays in motor or electrical projects. It can handle currents of up to 20 or 30 amperes and is well suited for high-power appliances such as lamps, speakers, and fans.read more -
![Line 6 Relay G10]()
Line 6 Relay G10This is our G10 relay, which uses Line 6. For circuits that can continuously control the on/off of circuits and protect equipment, the normal operating current is 30a and 40A. We also provide...read more -
![12v 30 Amp Relay 4 Pin]()
12v 30 Amp Relay 4 PinThe 4-pin 12V 30 ampere relay has the following characteristics: a rated operating voltage of 12V, suitable for DC circuit systems such as automotive circuits and some small electronic device...read more -
![12 Volt Solenoid Relay Switch]()
12 Volt Solenoid Relay SwitchThis electromagnetic relay switch features a compact and durable design, capable of handling up to 80 amperes of power and suitable for a wide range of applications, including automotive, marine,...read more -
![Led Flasher Relay]()
Led Flasher Relayan LED flasher relay is designed in a compact, small external structure for convenience in installing and locating it within a car's electrical system. The shell is made of plastic. Its insulation...read more -
![12V DC 10A Relay]()
12V DC 10A RelayMini universal relay can be selected between working coil voltages of 6-240V AC and 6-110V DC. The circular base can be installed with a socket. Superior quality.read more -
![Standard DC 12V Relay]()
Standard DC 12V RelayThe standard DC 12V relay is a signal relay with a DC coil. This series of signal relays has 2CO (DPDT) Au clad Ag alloy contacts. A wide range of best-selling products, with AC 1500V breakdown...read more
DC 12V relay is an electromagnetic switch driven by 12V DC voltage. In addition, it is used for switching of high current devices while controlling small current signals and has a wide usage in automobiles, industrial control, power systems, and household appliances. The switch structure of the 12v relay using a gas sealed system greatly reduces the size of the relay switch area and the operational noise during load switching. Besides, this structure reduces power consumption in coils, and it offers long-term contact stability.
Specialized operators
System Debugging Product Parameters and Design
Multi functional DC12 relay factory
Repeating the 12v relay test multiple times is only to improve the quality of our products
Cooperative research and development
Make our DC12 relay more stable and adaptable in performance
How Does DC 12V Relay Work
A DC 12V relay, just like any other relay, operates based on the principle of an electromagnet and switch contacts. Here's a simplified explanation of how a DC 12V relay works:
Electromagnet
The general construction of any relay includes an electromagnet that is usually wound onto a ferromagnetic core. When an electric current passes through the coil, it creates a magnetic field around the core.
Coil and Contacts
Inside the relay, there exist two sets of contacts: normally open (NO) and normally closed (NC). The coil is normally connected to the energizing circuit, generally a DC power source of 12 volts.
Normally Open (NO) State
Application of a voltage of 12V to the coil passes current through the coil, which produces the magnetic field. This magnetic field attracts the movable armature or plunger towards the coil and closes the contacts.
Energizing the Coil
When a voltage of 12V is applied to the coil, the current flows through it, creating a magnetic field. This magnetic field attracts the movable armature or plunger towards the coil, causing the contacts to change state.
Changing Contact State
When the coil is energized, the NO contacts shut and allow current to pass between their terminals. While doing so, the NC contacts open and shut-off any flow of current through them.
Maintaining Contact State
In other words, when the coil is energized and the contacts change state, the relay will remain in this state for as long as the coil is energized. In this way, the relay acts to supply current or not to various devices or circuits that are connected to its contacts.
De-energizing the Coil
When the voltage to the coil is removed, the magnetic field dissipates and the contacts return to their default positions. NO contacts reopen, and NC contacts close once more.
Applications of DC 12V Relay
01.Control Systems
02.Power Distribution
DC 12V relays play an indispensable role in power distribution systems for the isolation of faults and protection of the circuit by regulating the flow of electricity. This can be applied to switching power sources on or off, connecting or disconnecting a load, and overload or short-circuit protection.
03.Industrial Automation
04.Automotive Applications
05.HVAC Systems
06.Safety Systems
As one of the leading dc 12v relay manufacturers and suppliers in China, we warmly welcome you to buy high-grade dc 12v relay in stock here from our factory. All our products are with high quality and low price.
12V Miniature Relay, DC 12V Relay, 12V DC 10A Relay