Smart IoT Circuit Breaker

The WSB9SZL-100 IoT‑enabled residual current circuit breaker features Wi‑Fi and RS‑485 communication, enabling remote control of circuit on/off operations while providing protection against overload, short circuit, over‑/under‑voltage, and earth leakage.

Measurement switch

The WCM4E‑250/400/630 is an intelligent metering switch designed for 50 Hz AC systems, with a rated current range of 100–630 A (adjustable), a rated insulation voltage of 1000 V, and a operating voltage of 400 V. It features dual‑mode communication, high‑precision sampling, metering box management, anti‑theft early warning, outage reporting, line‑loss analysis, temperature monitoring, and fault diagnosis, along with a variety of protection functions.

Photovoltaic DC Molded Case Circuit Breaker

The WSB6Z-40DC/63DC series photovoltaic DC circuit breakers are specifically designed for DC systems. They are suitable for DC systems with a rated current of 63 A and a rated voltage of 1500 V or less, providing overload and short-circuit protection and enabling infrequent switching operations on the circuit.