Activation and tripping device TD300 including connection cable 3VA-TD300 Accessories for: 3VA2 test and commissioning devices for 3VA molded case circuit breakers. The activation and tripping device TD300 is a mobile, battery-operated on-site test device. It is used for the temporary power supply of the electrical overcurrent releases (ETUs), which enables operability and parameterization, and for testing the tripping function of the molded case circuit breaker. The mobile test device TD500 makes it possible to check the correct function and connection of all connected system components when commissioning the molded case circuit breaker, as this device can be used to simulate a wide variety of triggering causes. The molded case circuit breaker behaves as if it were an emergency - it trips. These accessory components are characterized above all by: 1. Power supply of the ETU of the 5 and 8 series to activate the display. 2. Changing the parameter setting directly on ETUs of the 5 and 8 series. 3. Checking the mechanical tripping functions (ETU 3, 5 and 8 series). 4. Checking the tripping function L, S, I, N, G (ETU 3, 5 and 8 series). www.siemens.de/3VA. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe, efficient electrical infrastructure in buildings and industry.
