OEM/ODM YOSHINE Single-Phase Voltage Fixed Protection Relay
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YOSHINE Single-Phase Voltage Fixed Protection Relay

The YX742S0R3 Single-Phase Voltage Fixed Protection Relay is designed to provide stable and reliable voltage monitoring for a wide range of electrical systems. Built for single-phase applications, this relay helps maintain consistent operation by detecting abnormal voltage conditions and responding promptly to protect connected equipment. It is suitable for use in control panels, industrial automation systems, and general electrical installations where dependable voltage supervision is required.

This model features SPDT output characteristics, allowing flexible integration into different control circuits. Its design enables users to implement both control and signaling functions, making it adaptable for various operational needs. Whether used for equipment protection or system control, the relay supports stable switching performance and consistent response behavior.

The relay supports both AC and DC voltage monitoring, offering versatility across different types of systems. With a broad voltage detection capability for both under voltage and over voltage conditions, it helps ensure that equipment operates within a defined and safe range. When voltage levels fall outside the preset limits, the relay responds accordingly, helping reduce the risk of malfunction or damage caused by unstable power conditions.

Its fixed protection design simplifies setup and operation. Users do not need complex adjustments, making installation more straightforward and reducing the likelihood of configuration errors. This makes the device suitable for applications where ease of use and consistent performance are priorities. The relay can be integrated into new systems or used as a replacement component in existing setups.

The working voltage range allows compatibility with commonly used power supplies, making it suitable for a variety of environments. From light industrial setups to commercial electrical systems, the relay offers dependable monitoring without requiring extensive customization. Its compact structure also allows for efficient installation in control cabinets with limited space.

Durability and stability are key aspects of the YX742S0R3 design. The relay is built to operate reliably under normal working conditions, supporting long-term use with minimal maintenance. Its internal structure is engineered to provide consistent performance, helping users maintain system continuity and reduce unexpected interruptions.

Overall, the YX742S0R3 Single-Phase Voltage Fixed Protection Relay offers a practical solution for voltage monitoring and protection. With its flexible output, wide voltage compatibility, and straightforward design, it supports efficient system operation while helping safeguard electrical equipment from voltage-related issues.

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Parameter Functional Description Working Principle Diagram
■ Technical Data

YX742S0R3

■ Monitoring Type Single Phase
■ Output Characteristics DPDT ■ Working Voltage 100-240VAC/DC
■ Frequency 50/60Hz ■ Over Voltage 30-300VAC/DC & 60-600VAC/DC
■ Under Voltage 30-300VAC/DC & 60-600VAC/DC ■ Protection Delay ≤30S
■ Hysteresis Voltage 5% ■ Recovery Delay ≤30S
■ Phase Sequence - ■ Phase Failure -
■ Asymmetrical Voltage - ■ Response Time of Relay 0.1S
■ Contact Rating 3A/250VAC ■ Ambient Temperature -10°C~+55°C
■ Setting Tolerance ±10% MAX ■ Repeatability ±2% MAX
■ Temperature Error ±2% MAX
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About Us

Who we are

YOSHINE is from China.
YOSHINE is a relay manufacturer.

Wenzhou Derrek Electric Co., Ltd. is an OEM/ODM YOSHINE Single-Phase Voltage Fixed Protection Relay Supplier and Wholesale YOSHINE Single-Phase Voltage Fixed Protection Relay Company. 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.
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
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