If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Schneider STBCPS2111 Auxiliary power supply Product Introduction The Schneider Electric STBCPS2111 Auxiliary Power Supply is a compact, dependable power module designed to support Schneider’s Advantys STB distributed I/ O and automation systems. As a dedicated auxiliary supply unit *Your Name: *Your Email: *Your Name: *Vdcode: Submit