ABB 3BSE021439R1 Dual ModuleBus Inlet

ABB 3BSE021439R1 TB846 Dual Modulebus Inlet is a redundant ModuleBus inlet for the ABB System 800xA S800 I/O family. It serves as the receiving end for a ModuleBus extension, enabling I/O modules on the same electrical ModuleBus to be mounted on different DIN rails when used with TB845 Dual ModuleBus outlet and TK801V0xx extension cables. The inlet carries two D-sub 25 connectors (male) for ModuleBus communication and is designed for use with TB845 and two TK801 cables to create a redundant bus path. The TB846 is part of ABB’s Compact Product Suite hardware and is compatible with S800 I/O modules. The article number is 3BSE021439R1. Environmental and safety specs include CE marking; RoHS and WEEE compliance; IEC 61131-2; UL 61010-1; UL 61010-2-201; hazardous locations: C1 Div 2 (cULus) and ATEX Zone 2; marine approvals ABS, BV, DNV, LR. Operating temperature is 0 to 55 °C; storage -25 to 70 °C; relative humidity 5 to 95% RH with no condensation; IP20 protection per IEC 60529. By design, TB846 extends the ModuleBus and can be used in conjunction with TB842 for optical extension of the ModuleBus, or with TB845 and TK801V0xx to relocate I/O modules across DIN rails, delivering a flexible bus topology for ABB’s S800 I/O systems.