The WAGO part 280-621 is a 4-conductor through terminal block designed for easy and efficient wiring solutions. With a wire cross-section of 2.5 mm², this terminal block offers reliable and secure connections. It features lateral marker slots, allowing for clear identification and organization of your wires. Designed to fit on DIN-rails of sizes 35 x 15 and 35 x 7.5, this terminal block is versatile and can be easily integrated into your existing setup. With its CAGE CLAMP® technology, it ensures a durable and vibration-proof connection. The terminal block comes in a sleek gray color, adding a professional touch to your electrical installations.