Weidmüller WTR 4/ZZ RT is a Test-disconnect terminal, Screw connection, red, 4 mm², 27 A, 500 V, Number of connections: 4, Number of levels: 1. Terminal block for separating circuits during tests or measurements. https://elecena.pl/product/29439788/weidm-ller-1361900000-terminal-screw-connection-4mm 2025-10-19 https://elecena.pl/product/29439788/weidm-ller-1361900000-terminal-screw-connection-4mm 2026-07-21