W-terminal with external tensioning, Test-disconnect terminal, Rated cross-section: 4 mm², Screw connection, WTR 4 STB SL BL 7910310000 Weidmüller 50 ks

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At Weidmüller, new solutions for the energy sector are developed according to local or application-based installation requirements.br / In some countries, control and protection of switching installations for transmission and distribution networks must comply with the EA-TS 50-18 standard. The standard prescribes "spring-loaded" terminals in conjunction with hook-blade cable lugs in order to ensure additional safety. The Weidmüller "spring-loaded" terminals of the WDU SL series and the disconnect terminals of the WTL SL series comply with this standard. br / In the SL versions, the clamping yoke is backed up by a helical spring. Furthermore, this arrangement permits two conductors to be connected to one terminal when the hook-blade cable lugs are placed back to back. The aim of this arrangement is to ensure good electrical contact even if someone forgets to tighten the clamping screw!