Weidmüller WPE 4 screw-type protective earth terminal block, specially designed for safety grounding wiring in electrical control cabinets. It adopts standard green-yellow anti-static insulation housing, reliable screw clamping connection, can be snapped onto TS35 standard DIN rail, effectively realizes equipment protective earthing, prevents electric leakage safety hazards, widely used in PLC cabinets, power distribution boxes, industrial automation equipment, machinery and equipment electrical grounding systems魏德米勒.