Yueqing Face Electric Co., Ltd.
Yueqing Face Electric Co., Ltd.
News

How Does a Latching Relay Differ From a Standard Relay?

Relays, which act as switches that open and close circuits electrically or electromechanically, are crucial parts of many electrical systems. Although this basic function is carried out by all relays, several varieties are made for certain uses. Standard (non-latching) relays and latching relays are the two most popular varieties. Choosing the appropriate relay for a particular application requires an understanding of their differences.  


1. Mechanism of Operation  


Standard Relay: A standard relay has a single coil and needs a steady stream of current to stay in one of two states: ON or OFF. The relay reverts to its default setting, which is typically OFF, when the current is cut off.  

Latching Relay: A latching relay doesn't need constant current to stay in its state; it only needs one or two coils. Until it receives a new control signal, it "latches" into its ON or OFF position.  



2. Consumption of Power  


Standard Relay: Over time, a standard relay uses more energy since it requires constant electricity to remain in its activated state.  

Latching Relay: A latching relay uses no electricity to maintain its position and only needs a quick current pulse to change states, making it more energy-efficient.    



3. Applications  


Standard Relay: Standard relays are perfect for applications like industrial machinery, lighting systems, and motor controllers where the condition of the circuit must change frequently or briefly.  

Latching Relay: Latching relays are used in applications where energy efficiency is crucial or the state of the circuit must stay consistent over extended periods of time, such memory circuits, smart grids, and battery-powered gadgets.  

Latching Relay


4. Design of Circuits  


Because a standard relay only uses one coil, it usually uses simpler control circuits.  

A latching relay that employs two coils—one for setting (ON) and one for resetting (OFF)—may need a slightly more intricate design.



5. State Retention  


- Standard Relay: Loses its current state when power is removed, making it unsuitable for applications requiring state memory after a power outage.  

- Latching Relay: Retains its last position even if power is lost, making it an excellent choice for systems requiring persistent states.  



6. Durability  


- Standard Relay: Continuous operation can result in wear and tear over time, especially in high-frequency applications.  

- Latching Relay: Reduced operation of coils due to its pulsed nature enhances its longevity.  



Key Use Cases  


- Standard Relays: Industrial automation, HVAC systems, and automotive applications.  

- Latching Relays: Smart home systems, energy meters, and emergency lighting.  



Conclusion  

The particular needs of your application will determine whether to use a latching relay or a normal relay. A latching relay is a superior option if energy saving and state retention during power outages are important considerations. A normal relay, on the other hand, is better suited for applications that need frequent switching without state memory.  


By being aware of these variations, engineers and designers may make well-informed choices that will guarantee their electrical systems operate as efficiently and effectively as possible.


Face Electric is a professional manufacturer and supplier of latching relay products. The company is a high-tech enterprise integrating scientific research and development, large-scale production and cellular sales. We have been focusing on product design and development in this industry for more than 20 years. With strong technical support, high-quality products and good services, our products have been exported to countries around the world and have long-term and stable partners.Visit our website at www.facerelay.com to learn more about our products. For inquiries, you can reach us at lydia@face-relay.com.



Related News
X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept