Linergy terminal blocks offer three terminal block technologies. The traditional screw connection, the spring clamp connection, and the new pushin connection. The industrial control, machine tool, packaging, material hadling, HVAC, textile, hoisting, water, marine, critiical power, elevator industries and many more use these terminal blocks for their connection requirements. These terminal blocks are designed for fast and easy installation. A wide variety of accessories are availble for these blocks to make your total installation easier. Linergy terminal blocks meet international standards, including UL Component Recognition and CSA certification. Mounting by screws. Sold in lots of 50 units.