Beijer ST-1904 Digital input module | Easy World Automation

Beijer ST-1904 Digital input module

  • 4 digital inputs
  • 230 VAC
  • Brand: BEIJER
  • Product Code: ST-1904


The FnIO S series is a micro modular remote IO-system from Crevis, which contains a wide selection of digital and analog modules as well as special modules. Together with a selected bus/ node module, the system is easily combined to make standalone IO-nodes.

The IO-system, which has an IP20 enclosure, is installed on a standard 35 mm DIN rail. Stable communication between the modules in the node is guaranteed via a unique sliding contact system.

A standard IO module is only 12 mm in width, and when using 16 channel IO modules a complete node is made up of 64 IOs of only 90 mm in width.

The FnIO S series supports known bus systems such as Profibus DP/V1, CC-Link, CANopen, Modbus-TCP, Modbus-RS232, and Modbus-RS485.

Discover industrial automation solutions appropriate to your needs, and easily inquire about the Beijer ST-1904 Digital input module through our user-friendly website via one of our Middle East branches (UAE (Dubai), KSA (Al Khobar, Riyadh), and Oman). 


Power Requirements
Current consumption 35 mA @ 5.0V DC
Input specification
Number of inputs 4
ON -state voltage 240 V AC (170V- 264V)
OFF-state voltage Max. 130V AC
ON-state current Max. 12 mA @264V
Nominal input impedance Typical 22 kΩ
Input delay OFF to ON: Max. 10ms / ON to OFF: Max. 10ms
Output specification
I/O connector Removable terminal block, cage clamp
Physical Characteristics
Mechanical size 12 mm x 99 mm x 70 mm
Module weight 70 g
Mounting 35mm DIN rail
System indicators 4 green input state, 1 green/red Bus state
Humidity 5-90% non-condensing
Operating temperature -20° to + 55°C
Storage temperature -40° to + 85°C