The ISM201 high-voltage live line display device is suitable for indoor/outdoor 10kV switchgear with a frequency of 50Hz, used to display the presence status of the operating voltage on the switchgear and perform interlocking functions compliant with five-prevention interlocking based on the operating voltage status. Paired with a compatible phase verifier, it can achieve phase verification of the operating voltage.

Main Functions and Structural Features

• Operating voltage phase verification
• Dustproof and waterproof functions
• Protection level: IP56
• High-voltage live line display for switchgear
• Switchgear interlocking contact control
• Self-check function for live line display device
• Main structural features: Excellent overall sealing; display panel cover, phase verification hole, and rear housing plug-in terminals adopt casting and pre-embedded insert method. The rear housing and housing are joined using ultrasonic welding process, with high welding strength and good sealing.
• Mechanical impact resistance: Accessible parts of the live line display device withstand mechanical impact tests with 2J mechanical impact energy.
• Simple assembly: Snap-fit fixation, no need for screws, nuts, or auxiliary tools, low assembly cost. Snap tightness adjustable to adapt to installation on cabinets of various thicknesses.
• Voltage adjustment board: Added voltage adjustment board in the connection module, which can meet various working conditions by adjusting the reactance value of the voltage adjustment board according to different voltage levels, different bushing capacities, and different line lengths.