This Contact Key Press Type with Silver Plated Points is a traditional, general purpose press key switch commonly utilized in basic experiments to open and close circuits with ease. When the finger is lifted, the contact will automatically be interrupted. The spring blade is made of heavy nickel plated bronze and the contacts are plated with silver. The 4mm spin-free socket head terminals allow for easy connections. The IEC 4mm socket spin free head terminals provide secure electrical connections, while the silver plated contacts ensure optimal conductivity. Additionally, the strong phosphor bronze spring blade ensures a long lifespan for this switch in the classroom. Product Code: SE.EM1010-001 Dimensions: 90mm (L) x 65mm(W) x 38mm (H) Weight: 0.054 kg Read Instruction Sheet