BECKHOFF KS3444 Bus Terminal 4-Channel Analog Input Module

Description

Industrial processing systems utilize the BECKHOFF KS3444 analog input bus terminal to interface standard 0 to 20 mA signals directly from the field level to the higher-level automation controller. This four-channel module features single-ended inputs and provides a highly space-efficient design with a pluggable wiring level, enabling fast, tool-free installation and maintenance. By operating directly through the standard K-bus, the unit transmits digitized process values back to the coupler or controller with a 12-bit resolution. Integrated electrical isolation of 500 V between the K-bus and the signal channels guarantees high noise immunity and signal integrity in demanding electrical environments.

Features

• Four single-ended analog inputs handling standard 0 to 20 mA current loops.
• Pluggable connection level (KS-series design) allowing pre-wiring and rapid terminal replacement.
• Compact 12 mm housing width to optimize control cabinet and DIN rail space.
• K-bus powered with a typical current consumption of 85 mA.
• Reliable performance across a broad operating temperature range of 0 to +55 degC.
• Sturdy design complying with EN 60068-2-6 and EN 60068-2-27 for vibration and shock resistance.

Applications

• Chemical and petrochemical processing plants.
• Water and wastewater treatment facilities.
• Machinery manufacturing and factory automation.
• HVAC and building automation controls.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mount the terminal on a standard 35 mm DIN rail conforming to EN 60715. Ensure the locking mechanism is securely engaged.
• To wire the pluggable KS terminal, use a flat-bladed screwdriver to actuate the integrated tension clamp mechanism.
• Ensure the system power supply is deactivated before plugging or unplugging the terminal wiring block to prevent damage to the K-bus connections.
• Observe regional grounding and shielding guidelines for analog signal cables to minimize electromagnetic interference.

Compliance and Certifications

• CE
• UL
• ATEX (II 3 G Ex nA IIC T4 Gc)
• DNVGL