Web Menu

Product Search

Language

Share

OEM/ODM DPDT Relay/SPST Relay

Home / Product

How Can We Help You ?

We reaffirm the high quality service of "high quality, low cost", "integrity builds character, dedication to create quality" as the company's pursuit!

+86-0574-88473018 Contact Us

DPDT Relay / SPST Relay Manufacturers

Watch overview

Ningbo Helishun Electron Co.,Ltd.

A manufacturer specialized in manufacturing, researching and developing relays.

Ningbo Helishun Electron Co.,Ltd. is founded in 2000, cover 8800 square meters. It is specialized in researching ,developing and producing relay. As OEM/ODM DPDT Relay Manufacturers and Wholesale SPST Relay Factory, the company introduced advanced technology and had built up dependable

quality managing system.It has passed ISO9001: 2015 quality system certification. The characteristics and mounting layout of the products are kept accordant with foreign congeners.The company's products have gained the certificates of UL,TüV,CE and CQC, and comply with EU requirement of RoHS.It is a priority to replace similar products choice. "HELISHUN" relays are well sold in home and abroad market, and are widely used in household electrical appliance, telecommunication, automation control, automobile, instrument and meters.Our company has many high-quality products for customers to choose from, such as HLS-4078, HLS6-23F, HLS6-4100H, etc., not only the quality can be guaranteed, but also a series of after-sales services are provided. You can contact our relevant staff. Warmly welcome customers from home and abroad to visit our company as well as the partners of OEM and ODM to have extensive cooperation.

CERTIFICATES

We show you some of our certificates we have obtained here.

The company introduces and absorbs advanced technology at home and abroad, adopts international technical quality standards, establishes a complete quality management system and testing methods, and has passed the ISO9001:2015 quality system certification.

  • IECEx Certification
    HLS-T90
  • TUV Certification
    T90 Certification
  • TUV Certification
    T90 Certification
  • UL Certification
    UL Certification
  • TUV Certification
    T90 certification
  • TUV Certification
    TUV Certification
  • TUV Certification
    TUV Certification
  • TUV Certification
    TUV Certification
  • TUV Certification
    TUV Certification
  • TUV Certification
    TUV Certification
  • TUV Certification
    TUV Certification
  • TUV Certification
    TUV Certification

News Center

Industry Knowledge Development

Do you know about DPDT relay?
A DPDT relay has two sets of contacts, each set having two contacts. It can be used to control two separate circuits, or to switch one circuit between two different states. It can be used to reverse the direction of a motor, for example.An SPST relay has a single set of contacts, which can either be open or closed. It can be used to switch a single circuit on or off.Both types of relays are commonly used in electrical and electronic systems to control the flow of electricity. They are often controlled by a smaller electrical current, which can be used to switch a larger current on or off. This allows a control system to switch electrical devices or circuits on or off remotely, or to automatically control the operation of devices based on certain conditions.
Some applications of SPST relays.
SPST relays can be used to switch electrical circuits on and off in a variety of applications. They are commonly used in automotive systems, to control the operation of various electrical components such as lights, fans, and fuel pumps. SPST relays can also be used in electronic circuits to control the flow of electricity, and in industrial control systems to activate or deactivate machinery or equipment.They have a single set of contacts that can be either open or closed, depending on the state of the relay. When the relay is energized, the contacts close, allowing current to flow through the circuit. When the relay is de-energized, the contacts open, interrupting the flow of current. SPST relays are commonly used in simple control circuits and are often referred to as "on-off" relays because they can only be in one of two states: on or off.SPST stands for Single Pole Single Throw, and these types of relays are commonly used to switch electrical circuits on and off. They have a single set of contacts that can be either open or closed, and they are controlled by an electromechanical actuator or a solid state device such as a transistor. When the relay is activated, the contacts close and allow current to flow through the circuit. When the relay is deactivated, the contacts open and the circuit is broken. SPST relays are used in a wide variety of electronic circuits and systems, including automotive systems, home appliances, and industrial control systems.
Simple application of DPDT relay.
A DPDT (Double Pole, Double Throw) relay is an electromagnetic switch that has two pairs of terminals (double pole) and can connect or disconnect two circuits (double throw). The DPDT relay has six terminals, two for each pair of poles. When the relay is in one state, one pair of terminals is connected to the other pair, and when the relay is in the other state, the connection is broken and the other pair of terminals is connected. This allows the relay to switch between two different circuits or to connect and disconnect a single circuit.DPDT stands for Double Pole Double Throw, and a DPDT relay is a type of electrical relay that has two pairs of poles and throws, which allows it to control two circuits at once. The two pairs of poles are called the "double pole," and the two throws are called the "double throw." The DPDT relay has six terminals, which are used to control the two circuits. The relay works by using an electromagnet to move a set of contacts, which can either open or close the circuit. When the relay is energized, the electromagnet attracts the contacts, closing the circuit and allowing electricity to flow. When the relay is de-energized, the electromagnet releases the contacts, opening the circuit and interrupting the flow of electricity. DPDT relays are commonly used in electronic circuits to control the flow of electricity to various devices, such as motors, lamps, and solenoids.