This K1 voltmeter switch is ideal for switching between phase-phase and phase-neutral voltage measurements on a switchboard, has a rated voltage of 690V AC. It has a square shape and a metallic legend with black marking. It is IP65 and installs with screws. This voltmeter phase switch offers the maximum mechanical and electrical robustness of its class, for prolonged operation without maintenance. Its high IP allows for handling of panel operations in very dusty and wet environments, including outdoors.