This isolator switch adopts a manual rotary operating mechanism, allowing easy and reliable operation. The clear I / O (ON / OFF) position indication ensures visible isolation, making it suitable for maintenance and emergency shutdown purposes.The switch features a multi-pole design, commonly available in 3-pole or 4-pole configurations, suitable for three-phase or three-phase four-wire systems. It is designed to disconnect circuits under no-load or light-load conditions, providing safe electrical isolation rather than circuit protection.With robust construction and stable mechanical performance, the isolator switch is suitable for installation in distribution boards, control panels, and electrical cabinets. The switch can be used as a main isolating device for equipment, ensuring that downstream circuits are completely disconnected from the power supply during maintenance.The isolator switch does not include overcurrent or short-circuit protection and is typically used together with circuit breakers or fuses. It is widely applied in industrial equipment, power distribution systems, and electrical installations where safe isolation is required.