Siemens 6NH3112-3BA00-6XX1 SIMATIC RTU3000C HART/RS485 Extension Board Telecontrol Module

The Siemens 6NH3112-3BA00-6XX1 is a plug-in extension board that adds HART and RS485 connectivity to the SIMATIC RTU3000C family, linking up to 16 Modbus RTU devices or 16 HART devices in multidrop mode for up to 32 variables. It transfers Modbus RTU data at 9600 to 115200 bit/s and HART at 1200 bit/s, draws power internally from the RTU, and operates from -40 to +60 °C in vertical or -40 to +70 °C in horizontal installation.

Technical Specifications

Certifications & Standards

• CE
• UKCA
• RCM
• RoHS
• ATEX
• IECEx
• ULhazloc
• CCC
• FM

Selection Notes

Add the 6NH3112-3BA00-6XX1 when a low-power RTU3000C needs multidrop field wiring instead of point-to-point runs: one 6-pin terminal strip serves up to 16 Modbus RTU or 16 HART instruments, and the board draws its power from the RTU itself rather than a separate supply. Its ATEX, IECEx, ULhazloc, CCC, and FM approvals let it go into the same hazardous-location installations as the RTU3000C base unit.