China 12V Bistable Latching Relay
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Sequential Relay

Sequential Relay is an electrical control device specially designed to control multiple circuits or equipment in a predetermined order. It can gradually switch each output terminal according to the set logical sequence according to changes in the input signal, thereby achieving multi-level control. This kind of relay is usually used in situations where multiple devices need to be started or stopped sequentially according to specific times or conditions, such as industrial automation production lines, lighting control systems, and air conditioning systems.

The working principle of a sequence relay is based on a trigger input signal that gradually switches the individual outputs of the relay. The switching time and sequence of each stage can be preset to ensure that in complex control systems, equipment starts or shuts down in the correct order, thereby avoiding conflicts or improper operations between equipment. Sequence relays can significantly simplify control logic and reduce manual operation and control system complexity.

In practical applications, sequence relays can not only improve the automation level of the system, but also reduce energy consumption and equipment wear by precisely controlling startup and shutdown times. In addition, the design of this relay is usually very reliable and can operate stably in various environments. It is an indispensable and important component in modern automation control systems.

About Us

Who we are

YOSHINE is from China.
YOSHINE is a relay manufacturer.

Wenzhou Derrek Electric Co., Ltd. is a China Sequential Relay Manufacturer and Sale Sequential Relay . YOSHINE’s products can be divided into two categories:
1. Products that manage electronic control processes (Step Relay, Time Relay, Switching Power Supply, Floatless Level Switch, etc.).
2. Products that protect equipment (e.g. motors) from voltage and current failures (Voltage Protection Relay, Current Monitoring Relay). OEM service is offered according to the client’s requirements.
Application of YOSHINE’s products is mainly in reset control (small hospitals, nursing homes, community houses), Lighting Control, Pump Control, Generator Control, etc. Considering the important role of our products, we keep developing new products and improving quality standards. YOSHINE not only involves all aspects of the industrial field but also intelligent control of offices and residences. We strive to provide clients with more efficient and intelligent products.
YOSHINE has gained a reputation for short lead time, flexible design, and excellent technical support.
YOSHINE has made its contribution to the development of our society and the global intelligence industry with the mission of “Made for Connection”.

YOSHINE

  • Current employees
    0+

    The company currently has more than 50 employees, including 7 professional technicians and 2 engineers.

  • Factory area
    0

    We have our own manufacturing plant which covers an area of ​​12000 square meters.

  • Monthly production capacity
    0+

    Our monthly production capacity is over 100,000 pcs, which can meet the needs of different clients.

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Our Certificate

  • 2022 CE Certificate 2022 CE Certificate
    2022 CE Certificate
  • YX7 (30826-30827) M.2021.206.C64486_00 YX7 (30826-30827) M.2021.206.C64486_00
    YX7 (30826-30827) M.2021.206.C64486_00
  • CB Certificate CB Certificate
    CB Certificate
  • CE-EMC CERTIFICATE YX189 CE-EMC CERTIFICATE YX189
    CE-EMC CERTIFICATE YX189
  • CE-EMC CERTIFICATE YX190  YX192  YX805  YX810 CE-EMC CERTIFICATE YX190  YX192  YX805  YX810
    CE-EMC CERTIFICATE YX190 YX192 YX805 YX810
  • CE-LVD CERTIFICATE YX189 CE-LVD CERTIFICATE YX189
    CE-LVD CERTIFICATE YX189
  • CE-LVD CERTIFICATE YX190  YX192  YX805  YX810 CE-LVD CERTIFICATE YX190  YX192  YX805  YX810
    CE-LVD CERTIFICATE YX190 YX192 YX805 YX810
  • CE-EMC CERTIFICATE YX-222 CE-EMC CERTIFICATE YX-222
    CE-EMC CERTIFICATE YX-222
  • CE-LVD CERTIFICATE YX-222 CE-LVD CERTIFICATE YX-222
    CE-LVD CERTIFICATE YX-222
  • CE-ROHS CERTIFICATE YX-222 CE-ROHS CERTIFICATE YX-222
    CE-ROHS CERTIFICATE YX-222
  • Software Certificate Software Certificate
    Software Certificate
  • Over-current and under-current relay Over-current and under-current relay
    Over-current and under-current relay
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The Origin of Sequential Relays

Sequential relays, often referred to as time-delay relays or sequence control relays, originated as part of the broader trend of automation and control technology in the early 20th century. Initially, electrical circuits were manually operated, requiring human intervention to control the sequence of operations. However, as industries expanded and the need for more efficient and precise control systems grew, sequential control became necessary to automate processes and reduce human error.

The sequential relays were simple mechanical devices that used a series of contacts to control the sequence of operations. These early models were often bulky and prone to wear, but they laid the foundation for the development of more advanced systems. With the advent of electronic components and microprocessors in the mid-20th century, the functionality of sequential relays evolved. Electronic relays, for example, allowed for the integration of more complex sequences, time delays, and precise control functions, making them more reliable and flexible for modern applications.

Today, sequential relays are used in a wide range of industries, from manufacturing to automotive systems. Their ability to ensure the correct sequence of operations in automated systems is critical for improving efficiency, safety, and reliability. Sequential relays have proven to be indispensable in everything from conveyor systems to programmable logic controllers (PLCs), helping reduce manual intervention and improve system performance.

Bistable impulse relays, commonly used in control and automation systems, play a significant role in switching circuits while consuming minimal power. These relays, which maintain their state (on or off) until an impulse changes it, offer energy efficiency and reliable performance. However, the proper functioning of bistable impulse relays depends on thorough quality inspection to ensure they meet the required standards for use in sensitive and critical applications.

Quality Inspection of Bistable Impulse Relays

The quality inspection of bistable impulse relays is an essential process to verify the reliability, durability, and performance of these components. The inspection process begins with a visual examination of the relay to check for physical defects such as cracks, improper soldering, or any signs of wear that might affect performance. A relay with visible damage is likely to malfunction, operational failures.

Next, electrical testing is carried out to assess the relay’s performance under normal operating conditions. This includes checking for accurate switching functionality, which ensures that the relay responds correctly to the input signal and switches the circuit on or off as needed. It is also important to test for the relay’s response to both high and low input voltages, as relays must be reliable across a wide range of operating conditions.

In addition to functional testing, thermal testing is performed to verify that the relay can withstand typical temperature fluctuations in its intended environment. Bistable impulse relays are often used in environments where temperature changes are common, so ensuring they can handle these fluctuations without degrading performance is vital.

12V bistable latching relays are widely used in applications requiring low power consumption and reliable switching operations. These relays are an ideal solution for energy-efficient control systems, as they can retain their state (whether on or off) without a continuous power supply. With the growing demand for energy-efficient devices and systems, the features of 12V bistable latching relays have made them a preferred choice in numerous applications, ranging from home automation to automotive electronics.

Features of 12V Bistable Latching Relays

One of the notable features of 12V bistable latching relays is their low power consumption. Unlike traditional relays, which require constant power to maintain their state, bistable relays use an impulse to change the state and consume power only when switching between states. This characteristic makes them ideal for battery-operated systems and applications where power conservation is essential, such as in solar-powered devices, remote sensing equipment, and energy-efficient home automation systems.

Another key feature of these relays is their ability to handle higher switching capacities while maintaining their compact size. Despite their low power consumption, 12V bistable latching relays can switch relatively high currents, making them suitable for controlling various devices such as lights, motors, and alarms. This versatility allows them to be used in a wide range of industries, including automotive, home security, and industrial automation.