Perfect DIN Rail Terminal Blocks Kit : Terminal blocks kit comes with 20pcs 12AWG terminal blocks, 2pcs connection bar, 2pcs digital identification, 20pcs screws, 2pcs end stopper bracket and a transparent storage box Easy to Use: The patented design, different from the ordinary rail connector, does not require the tedious tightening of screws, just insert the rail terminal into the 35mm iron and aluminum DIN rail, lift the orange clip, insert the wire into the hole until you feel the resistance, then lower the orange lever and complete the operation, saving 70% of the operation time Universal Compatibility : This Wire Connector is suitable for solid and flexible wire. Connect any combination of solid, stranded, and flexible copper wires. Suit for solid wire 0.08-4.0mm² /28-12 AWG, flexible wire 0.5-2.5mm² /20-14 AWG. It is widely used in distribution boxes, control cabinets, switchgear, complete sets of equipment, machinery, etc Premium Quality : Terminal blocks, high-quality brass metal body, and the best flame retardant insulating material modified nylon PA66 shell, it has a long life, no corrosion, anti-aging, 4KV and shock resistance, strong structure firmly locked to DIN rail