The 1SNA165809R0100 is a screw clamp ground terminal block from the SNA Series, identifiable by its green-yellow polyamide housing. It accommodates a rated cross-section of 4 mm² with a 6 mm spacing, accepting rigid wires from 0.2 to 4 mm² and flexible wires from 0.22 to 4 mm². Key electrical characteristics include a rated short-time withstand current of 480 A for one second and a dielectric test voltage of 3500 V. Designed for secure mounting on TH35-7.5 and TH35-15 DIN rails, this block provides a reliable grounding connection for industrial control panels and electrical distribution systems.