Allen-Bradley 1734-IV8 DC Digital Input Module

The Allen-Bradley 1734-IV8 is an 8-channel POINT I/O DC digital input module that provides 24 V DC sourcing inputs for industrial automation and is designed for open-style DIN-rail mounting in distributed I/O architectures. Each channel accepts a 24 V DC input with an on-state voltage range of 10 V to 28.8 V (nominal 24 V) and an on-state current up to 5 mA (typical around 4 mA), while the off-state voltage remains below 5 V. The module consumes up to 75 mA on the POINTBus and dissipates about 1.6 W (approximately 5.5 BTU/hr) under normal operation, making it suitable for compact control panels where 24 V DC sensors are used. Operating temperature is typically −20 to 55 °C, and the unit is a standard 1734 POINT I/O device used to digitize sensor signals for PLCs in a wide range of automation applications.