Detailed Selling Lead Description Product Name: 100-Pair Protective Terminal Block Model Number: WB-D0119 / 120 / 121 Place of Origin: China The PTB is designed such that the external lines and the jumper wires are disconnected before the protectors are ed the PTB. Only after ing the protectors will they be connected. Thus, when the external lines have a problem, the exchange lines will be disconnected by pulling out the protector. Each PTB has a termination capacity of 100 lines, consisting of 10pcs of 10-line modules. Specifications: 1) Insulation resistance: ≥1,000 ohms 2) Dielectric strength: ≥1,000V (AC 50Hz for 1 minute), no spark-over and no flying arc 3) Contact resistance between conductor and reed: ≤3 milliohms 4) Contact resistance between reeds: ≤7 milliohms 5) Conductor diameter range: 0.4 - 0.8mm 6) Pulling strength: ≥25N