Grounding and short circuit equipment for low voltage electrical panels. The main objective of its installation is to protect the worker against accidental start-up or a possible voltage return during repair work. MPUL clamps can be attached to exposed cylindrical conductors, fixed points or plates. Each one has its own fixed handle. In accordance with the IEC 61230 standard. Contents: 4 MPUL aluminum alloy pliers, screw tightening, with insulated handle, 3 insulated copper cables with PVC insulating cover with a section of 70/95/120 mm 2 depending on the model and 0.6 m in length, 1 insulated copper cable with PVC insulating cover with a section of 70/95/120 mm 2 depending on the model and 2 m in length, 1 TT-50 grounding lathe, 1 plastic chest for transporting and storing the equipment.