Home / Product / Relay for Wall-mounted meter / Relay for Single Phase / J-8401-120 25th Edition State Grid Single Phase Latching RelayProduct Definition: J-8401-120 is a single-phase magnetic latching relay developed according to the 2025 version of the State Grid technical specifications, specifically designed for smart meters and smart power distribution equipment. The product adopts an energy-saving magnetic latching structure, combining high reliability, high safety, and long lifespan, meeting the State Grid's latest requirements for the stability and safety of metering devices.

Product Advantages:
Complies with 2025 New State Grid Standard: Fully meets the technical specifications of the new State Grid in terms of insulation, withstand voltage, surge resistance, and electrical life.
Magnetic latching low-power design: Maintains on/off state even when power is off, reducing overall meter energy consumption and temperature rise.
High-reliability contact system: Utilizes high-quality contact materials, possessing strong arc resistance and long electrical life, ensuring stable operation of critical metering equipment.
Upgraded and more robust structure: Optimized mechanical structure improves vibration and shock resistance, meeting the requirements of complex operating environments.
Strong installation compatibility: Dimensions and terminal design conform to mainstream meter structures in the industry, facilitating rapid integration of the entire unit.
Application areas:
New State Grid smart meters, prepaid meters
Power distribution monitoring equipment, user-side power control terminals
Intelligent power distribution systems, energy management equipment
Established in May 2021
Annual exports account for about 30%
The company occupies an area of 8,000 square meters.
Huajin Technology Jiaxing Co., Ltd. was established in May 2021 and is located at 707 Yanyu Road, Yucheng Town, Haiyan County, Jiaxing City, Zhejiang Province. It is a high-tech enterprise specializing in the research and development, production, and sales of relays. The registered capital of the company is 10 million yuan, covering an area of 8000 square meters, with more than 120 employees. The annual production capacity of magnetic latching relays is over 10 million, of which exports account for about 30%. The company has obtained ISO9001-2015 quality management system certification, and its relays have passed CCC certification, State Grid certification, TUV certification, etc. It also holds multiple technical patents. Our main products include motor relays, single-phase, two-phase, and three-phase magnetic latching relays, which have a wide variety of types and can meet various customized solutions for customers.