Beckhoff KL3454 PLC 4-Channel Analog Input Module 12 Bit 4-20mA Electrical Isolation

Name: Beckhoff KL3454 PLC 4-Channel Analog Input Module 12 Bit 4-20mA Electrical Isolation
Brand: Shaanxi Qindiyuan Environmental Protection Equipment Co., Ltd.

Beckhoff KL3454 4-channel analog input terminal for 4-20 mA signals with 12-bit resolution and electrical isolation. Supports 2-wire sensors, features overload detection, and operates on K-bus power. Compact 12 mm design for dense control cabinet installations.

Output Method Relay

Powersupply 24V DC or 110/220V AC

Responsetime Less than 10 ms

Controltype Programmable Logic Controller (PLC)

Supply Ability 10000 pcs

Actual Value Negotiabled price

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Product Description

I. Core Basic Information

Brand / Model: Beckhoff KL3454
Product Category: K-bus terminal block, 4-channel single-ended analog input module
Signal Type: 4–20 mA industrial standard current signal
Power Supply: K-bus powered, no additional independent power supply required
Mounting: 35 mm DIN rail (EN 60715), 12 mm wide
Product Status: In production, regularly supplied Beckhoff
Pluggable Version: KS3454 (pluggable terminal blocks for easy maintenance)

II. Key Technical Parameters

Parameter	Value
Number of Input Channels	4 channels (Single-ended)
Signal Range	4–20 mA
Resolution	12 bit
Measurement Error	< ±0.3% FS (Full Scale)
Conversion Time	Approx. 2 ms / Channels
Input Internal Resistance	< 85 Ω
Electrical Isolation	K-bus / Signal Side: 500 V DC
K-bus Current Consumption	Typical 85 mA
Surge Withstand Voltage	30 V DC
Process Image	Inputs: 4 * 16-bit data (optional 4 * 8-bit control / status)
Weight	Approx. 55 g
Dimensions	12 mm * 100 mm * 68 mm
Operating Temperature	-25 ～ +60°C; Storage: -40 ～ +85°C
Protection Rating	IP20

III. Functions and Features

2-Wire Sensor Support: Built-in 24 V power contact allows direct connection of 2-wire 4–20 mA sensors without external power supply.
Single-Ended Common Ground: 4 inputs share a common 0 V reference ground for simple wiring.
Plug and Play: Beckhoff operates immediately upon power-up, requiring no address or configuration settings.
Status Diagnostics: Built-in overload/disconnection detection, with intuitive status indication via RUN/Error LEDs.
High-Density Design: 4 channels, only 12 mm wide, suitable for dense installation within control cabinets.
Applications: Widely used in PLC/DCS systems to acquire sensor signals such as pressure, flow, level, and temperature (current output type).