OEM/ODM YOSHINE Three-Phase Four-Wire Unbalance Protection Relay
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YOSHINE Three-Phase Four-Wire Unbalance Protection Relay

The YX762FFA01 Three-Phase Four-Wire Unbalance Protection Relay is developed to enhance the safety and operational stability of power distribution systems. Specifically designed for three-phase four-wire networks, this device focuses on monitoring voltage balance conditions and identifying irregularities that may affect system performance. It plays an important role in protecting electrical equipment from issues caused by phase imbalance, which can lead to overheating, reduced efficiency, or unexpected system interruptions.

Equipped with DPDT output characteristics, the relay provides greater flexibility for control and signaling purposes. This configuration allows it to be integrated into various circuit designs, supporting both protective actions and status indication. The dual contact output enhances adaptability, making it suitable for different automation and protection schemes across industrial and commercial environments.

The relay continuously observes voltage conditions within the system and reacts when deviations such as under voltage, over voltage, or imbalance are detected. By responding to these variations, it helps maintain smoother system operation and reduces the likelihood of equipment stress. This makes it particularly useful in applications where consistent power quality is essential for maintaining process reliability.

Designed for three-phase four-wire monitoring, the unit is well suited for installations where neutral line conditions and phase symmetry are important. It helps identify situations where uneven load distribution or wiring issues may create instability. With this capability, users can take preventive measures before minor irregularities develop into larger operational concerns.

Its working voltage compatibility allows the relay to be used in a variety of standard electrical systems, offering convenience during installation and system design. The device is structured to support straightforward integration into control panels, minimizing setup complexity while maintaining dependable functionality.

The YX762FFA01 also emphasizes durability and consistent performance. Its internal components are engineered to operate steadily under typical electrical conditions, supporting long-term use. The compact and practical design allows efficient use of installation space, which is beneficial in modern control cabinets where layout efficiency is important.

Overall, this unbalance protection relay offers a reliable approach to monitoring and protecting three-phase systems. By combining flexible output, continuous voltage supervision, and a design tailored for balanced operation, it supports improved system reliability and helps reduce the risks associated with unstable electrical conditions.

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Parameter Functional Description Working Principle Diagram
■ Technical Data

YX762FFA01

■ Monitoring Type 3P4W
■ Output Characteristics DPDT ■ Working Voltage AC127-265V
■ Frequency 50/60Hz ■ Over Voltage ≤30%
■ Under Voltage ≤30% ■ Protection Delay 0.1-10S
■ Hysteresis Voltage - ■ Recovery Delay 0.1-10S
■ Phase Sequence ■ Phase Failure
PTC Protection
- ■ Asymmetrical Voltage 5~40%
■ Response Time of Relay 0.1S ■ Contact Rating 8A/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 Three-Phase Four-Wire Unbalance Protection Relay Supplier and Wholesale YOSHINE Three-Phase Four-Wire Unbalance 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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