Contact B2B Inquiry Request a Quote Send model numbers, quantity, target price, or project notes. ChainXcel will match the product and reply with availability and quotation details. Product / Model ListSiemens SIRIUS 3SB Commanding & Signaling Devices 3SB3 400-1RB (PU5) 3SB3 400-1RB (PU5) Quantity Your Name Email Company WhatsApp / Phone Message Submit RFQ WhatsApp Sales