The Phoenix Contact 3211793 PTTB 4 BU is a dual port terminal block designed for secure and efficient connections in electrical installations. With its blue colour and reliable continuity, it is ideal for use in switchboards and control panels. Typical applications include industrial automation and network interface setups. https://elecena.pl/product/28051001/phoenix-contact-3211793-pttb-4-bu-blue-double-level-terminal-space-saving 2025-03-21 https://elecena.pl/product/28051001/phoenix-contact-3211793-pttb-4-bu-blue-double-level-terminal-space-saving 2025-07-15 https://elecena.pl/product/28051001/phoenix-contact-3211793-pttb-4-bu-blue-double-level-terminal-space-saving 2026-04-29 https://elecena.pl/product/28051001/phoenix-contact-3211793-pttb-4-bu-blue-double-level-terminal-space-saving 2026-06-12 https://elecena.pl/product/28051001/phoenix-contact-3211793-pttb-4-bu-blue-double-level-terminal-space-saving 2026-07-06