80A latching relay Factory

about us

Haiyan Weijia Electric Technology Co., Ltd is a professional China Magnetic Latching Relays Manufacturers and 80A latching relay factory, covers an area of 13 acres, with a total construction area of about 12,000 square meters and more than 200 employees. The company mainly produces in-meter accessories such as current transformers, manganese-copper shunts ,wholesale 80A latching relay and magnetic holding relays. The transformer production capacity is 80,000 per day, shunts are 50,000 per day, and 20,000 relays per day. The company invests millions of dollars each year in equipment upgrades, production process improvements and new product development. Currently has dozens of technical patents, enterprise management passed ISO9001 certification, relays and transformers obtained CE EU certification.
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What Is the Current Transformer?

A current transformer (CT) is a device that steps down a high current in an alternating current circuit to a lower, safer level. CTs are commonly used in metering applications and ...

Choosing the Right Three Phase Meter Current Transformer

A three phase meter current transformer is used to convert a primary current to a secondary current. They can be found in various shapes and sizes, and have a wide range of amperag...

Shunt-Based Energy Meters

In the energy meter industry, many meters use shunts as current sensors. This is mostly because they cost less than other types of current sensors and provide magnetic immunity tha...

What is a Shunt and Why is it Used in a Prepayment Meter?

When it comes to energy bills, one of the key components is your energy meter. It shows how much electricity and gas you're using each month and allows you to top up by text, app o...

Industry knowledge about Relay

Magnetic latching relays are a type of relay that uses magnetic fields to maintain the state of the switch, rather than relying on a continuous electrical current to do so. Unlike traditional relays, magnetic latching relays only require a brief pulse of electrical current to change their state, and once the state has changed, it is maintained by a permanent magnet.
One of the key advantages of magnetic latching relays is their low power consumption, as they only require power when the state of the relay is being changed, and not when the state is being maintained. This makes them ideal for applications where energy efficiency is a concern, such as battery-powered devices or systems where power consumption must be minimized.
Another advantage of magnetic latching relays is their high reliability, as they are immune to electrical noise and other disturbances that can cause false switching in traditional relays. Additionally, they are typically smaller and lighter than traditional relays, making them suitable for use in compact and portable devices.

Advantages of magnetic latching relays:

High Reliability: Magnetic latching relays are highly reliable due to their simple and robust design, and they are typically able to perform millions of switching cycles with minimal wear and tear.
Long Life: Magnetic latching relays are designed to last for a long time, and they are typically rated for a life of up to 10 million switching cycles.
Low Noise: Magnetic latching relays are very quiet in operation, making them ideal for use in noise-sensitive applications.
High Immunity to Electromagnetic Interference (EMI): Magnetic latching relays are highly immune to EMI, which makes them suitable for use in harsh electrical environments where electromagnetic noise is a concern.
High Immunity to Voltage Spikes: Magnetic latching relays are designed to withstand high voltage spikes, making them ideal for use in applications where voltage transients are a concern.
Energy Efficiency: Magnetic latching relays require a brief pulse of electrical current to change their state, and then rely on a permanent magnet to maintain the state, which requires very little energy. This makes them ideal for applications where energy efficiency is a concern.
Reliability: Magnetic latching relays are immune to electrical noise and other disturbances that can cause false switching in traditional relays. This results in higher reliability and a longer lifespan.
Size and Weight: Magnetic latching relays are typically smaller and lighter than traditional relays, making them suitable for use in compact and portable devices.
Long-Term Stability: Magnetic latching relays are not affected by changes in temperature or other environmental factors that can cause traditional relays to switch incorrectly over time.
Ease of Use: Magnetic latching relays only require a pulse of electrical current to change their state, which is much simpler and more convenient than having to constantly apply current to traditional relays.