Feed-Through Terminal Blocks, DIN Rail Mounting TypeStandard terminal blocks feature a universal foot for mounting on 35 mm or 32 mm DIN Rail. Ground Blocks are designed for either 35 or 32 mm rail. High-density design features screw-cage clamps for reliable connections. Material: Polyamide 6.6. Ratings: 600 V or 300 V. UL, CSA, IEC/VDE.It is most versatile terminals for wire-to-wire connection in control, automation, instrumentation and power distribution applications. A special design feature on the flexible foot enables easy mounting and dismounting from the DIN rail with the help of a screwdriver.