Allen-Bradley 1719-IBN8B Programmable Logic Controller Module

The Allen-Bradley 1719-IBN8B Ex I/O eight-channel Digital NAMUR Input module provides eight NAMUR-compatible inputs for hazardous environments as part of the 1719 Ex I/O family. It runs from a 24 V DC supply and is rated for Zone 2 or Class I, Division 2 installations (or safe-area use), making it suitable for chemical, oil/gas, and mining settings where intrinsic safety is required. The unit ships with the 1719-TB8x2SA Ex I/O 2x8 terminal assembly for straightforward field wiring and supports standard 1719 adapter and I/O configurations. Weighing about 1.1 lb and built in Vietnam, the module accepts NAMUR sensors to detect discrete process or machine states with reliable response. Notable features include line fault detection (LFD) and permanent self-monitoring to aid safe operation and diagnostics in difficult environments. This 8-channel input module is commonly used in distributed I/O networks to consolidate NAMUR sensor signals at the controller level, reducing wiring complexity while maintaining compliance with hazardous-location standards.