The Siemens Auxiliary Switch is a versatile accessory for 3VJ13 (400A) and 3VJ14 (630A) breakers, equipped with a single changeover contact on the left. With an insulation voltage of 500V and a surge voltage resistance of 3.2kV, it ensures reliable performance and safety. Operating at a minimum of 240V AC or 48V DC, and rated for 5A thermal current, this auxiliary switch is designed for efficient operation in demanding electrical systems.