SIEMENS VBII safety switches are built to last. Everything about the VBII safety switch has been designed for the engineer installer. Featuring rolled metal edges and corners to minimize cuts, nicks, and scrapes to the installer’s hands and conductors and generous wiring gutters that meet or exceed UL and NEC wire bending space requirements. The enclosure is more rigid and resilient and all parts are replaceable for easier service. Our quick-make quick-break switching action coupled with our double break visible blade design ensures reliable operation in both general duty and heavy duty applications.