JZ-58 58-Pins Aviation Secondary Plug Socket for Indoor Vacuum Circuit Breaker – High-Voltage Switchgear Control Connector (GZS1/VS1/VD4 Compatible)

The JZ-58 Secondary Plug Socket is a high-performance 58-pin control connector designed for KYN-12 mid-mounted high-voltage switchgear cabinets, such as GZS1 models equipped with VS1 and VD4 vacuum circuit breakers. This self-developed product utilizes advanced ABB-standard technology to provide a reliable domestic alternative for secondary control circuits. It is essential for uploading the circuit breaker’s position signals (open, closed, and test) and enabling automated remote control via an upper computer. Compliant with GB3906-91 technical requirements for $3 \sim 35\text{kV}$ AC metal-enclosed switchgear, the JZ-58 ensures secure, high-density electrical connectivity in demanding indoor power distribution environments.