JOQ Series Decoupler Surge Protective Device AC 50A with Multi-level Protection and Zinc Oxide Arrester for 35mm Rail Installation

The Lightning Surge Protective Device Decoupler Series JOQ 50A is a coupling device widely used in multi-level protection lines for power distribution systems with current less than 63A. When lightning current invades the line, the installed decoupler ensures the first-level SPD acts first, releasing most of the lightning wave energy and reducing the energy burden on the second-level SPD. This coordination enables the system to handle large inrush currents with low residual voltage, protecting subsequent circuits and equipment from overvoltage damage.

• Installed in series between two levels of surge protectors, increasing wire inductive reactance and coordinating energy cooperation between different specification surge protectors
• 35mm standard guide rail installation for easy installation in distribution boxes or switch cabinets with limited space
• Rated current of 50A, suitable for applications with relatively small currents such as communication power supplies
• Enables energy coordination between two-level surge protectors in large-scale power grid circuit protection applications

Xian Xiwuer Electronic and Info. Co., Ltd is a wholly state-owned company established in 1976 with registered capital of CNY 101.465 million (USD 15.85 million) and total assets of CNY 315 million (USD 49.22 million). The company employs approximately 460 staff with annual sales income of CNY 280 million (USD 43.75 million).

The company operates four production and business bases covering 43,052 square meters with construction area exceeding 50,000 square meters. Technical expertise includes 8 master's degree holders, over 80 senior engineers, 12 municipal government-recognized experts, and 1 State Council special allowance expert.

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• Primary and Secondary Integrated Intelligent assembly and components with voltage measurement, current measurement, protection, temperature monitoring, and power supply functions
• Medium-High Voltage components/parts/assembly
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ABB, Schneider, GE, ZTE, XD Electric, XJ Electric, PingGao Electric and others.

The company maintains a provincial Technical R&D Center with nearly 20 years of development and manufacturing experience in key products including HV Ceramic Capacitor, SPD, Varistor, and Thermistor. The company holds 32 patented technologies, 4 invention patents, and 4 national key new products.

Quality management systems include ISO9001, ISO14001, and ISO45001 certifications. Products have obtained UL, VDE, TUV, CAS, CE, CQC, RoHS, and REACH certifications. Technical performance and reliability are at internationally advanced levels comparable to Panasonic and Siemens.

Advanced production equipment includes imported machinery from Japan, USA, Germany, Korea, and Belgium, featuring 26m large sintering tunnel furnaces, 8 automatic assembly lines, the largest energy impulse current generator, and comprehensive testing equipment. The company operates two routine test laboratories with advanced lightning testing and environmental testing equipment compliant with national standards.