The 1010100000 is a Modular PE Terminal Block with screw connection and 4mm² wire cross section area. M3 clamping screw and 10mm stripping length. Green, yellow color. Screw mounting with TS 35 mount rail. The WPE 4 terminal block accepts 26AWG minimum to 10AWG maximum wire size. When it comes to functional perfection down to the finest detail, the screw connection terminals in the W-series set the standard a long time ago. The combination of benefits is unequalled and puts the W-series in a leading position on the market. The W-Series offers solutions for all standard electrical functions. It brings considerable time savings compared to all other screw terminals on the market. Thanks to the patented design of Weidmüller's W-series screw connection technology it is possible for two conductors with the same cross-section to be connected in one and the same clamping yoke without difficulty.