KL4012

BECKHOFF

BECKHOFF KL4012 Bus Terminal

SKU KL4012

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: BECKHOFF
  • Product No.: KL4012
  • Origin Germany
  • Product Type: Bus Terminals
  • Payment: T/T, Western Union
  • Weight: 0.08 kg
  • Shipping port: Xiamen
  • Warranty: 12 months

Tags

Bus Terminals K-bus
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Product Description

Description

The BECKHOFF KL4012 is a 2-channel analog output Bus Terminal designed for precise current-loop control within industrial automation systems. Operating on the K-bus system, this terminal generates analog signals in the range of 0 to 20 mA with a resolution of 12 bits, making it suitable for driving actuators, process controllers, and variable speed drives requiring current inputs.

Each channel of the BECKHOFF KL4012 is electrically isolated from the K-bus up to 500 V, protecting control-level components from field-side electrical noise and potential differences. The terminal field-side electronics are supplied via the 24 V DC power contacts, ensuring electrical separation and simple system design.

Features

  • Two single-ended analog output channels.
  • Analog output current range of 0 to 20 mA.
  • 12-bit resolution for precise analog control.
  • Electrical isolation of 500 V between the K-bus and the signal lines.
  • Support for optional control and status bytes via the process image.
  • Direct integration with standard K-bus couplers and controllers.

Applications

  • Analog control of valves, positioning units, and actuators.
  • Integration with variable frequency drives (VFD) via current reference inputs.
  • Process loop integration and transmitter reference signaling.
  • General industrial automation and machine control architectures using current-driven loops.

Technical Specifications

General and Signal Specifications

Parameter Specification
Manufacturer BECKHOFF
Model KL4012
Product Type Analog Output Bus Terminal
Number of Channels 2
Signal Current Range 0 to 20 mA
Resolution 12 bit
Output Error < ±0.1 % (relative to full scale value)
Load Resistance < 500 ohms
Conversion Time approx. 1.5 ms
Technology Single-ended

Electrical Specifications

Parameter Specification
Power Supply 24 V DC via power contacts (or 15 V DC via KL9515 potential supply terminal)
Current Consumption (K-bus) typ. 60 mA
Current Consumption (Power Contacts) typ. 50 mA + load
Electrical Isolation 500 V (K-bus / signal voltage)
Process Image Bit Width Output: 2 x 16-bit data (2 x 8-bit control/status optional)

Mechanical and Environmental

Parameter Specification
Weight approx. 80 g
Operating Temperature -25 to +60 degC
Storage Temperature -40 to +85 degC
Relative Humidity 95 %, non-condensing
Protection Rating IP20
Installation Position Variable

Connections / Interfaces

Terminal Contact Function
Terminal 1 Analog Output 1+
Terminal 2 Analog Output 2+
Terminal 3 +24 V DC (Power Contact)
Terminal 5 Analog Output 1-
Terminal 6 Analog Output 2-
Terminal 7 0 V (Power Contact Ground)

Installation Guidelines

  1. Ensure the entire industrial control system and power supply are fully de-energized before beginning installation, modification, or maintenance tasks.
  2. Mount the BECKHOFF KL4012 Bus Terminal onto a standard 35 mm DIN rail (EN 60715) by sliding it into place until the locking mechanism engages securely.
  3. Verify alignment with adjacent bus terminals to ensure proper mechanical connection and contact integrity of the internal K-bus and power contacts.
  4. Connect signal lines to the designated terminal points according to the connections table using appropriate conductor sizes.
  5. Upon physical integration, configure the terminal using TwinCAT or compatible controller environment ensuring the process image matches the terminal parameters.
Shipping &amp; Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
FAQ
What is the primary function of the BECKHOFF KL4012 Bus Terminal?
The BECKHOFF KL4012 is a 2-channel analog output terminal designed to output precise current signals in the range of 0 to 20 mA to control field devices such as actuators, valves, and speed controllers.
What resolution does the BECKHOFF KL4012 provide?
The BECKHOFF KL4012 offers 12-bit resolution, providing detailed control steps for connected industrial current-loop devices.
How is the BECKHOFF KL4012 Bus Terminal powered?
The BECKHOFF KL4012 is supplied with 24 V DC power via the terminal's integrated power contacts, or alternatively 15 V DC with the addition of a KL9515 potential supply terminal.
Does the BECKHOFF KL4012 require manual configuration or addressing?
No, the BECKHOFF KL4012 does not require manual address or hardware configuration settings; it is automatically identified and integrated within the K-bus system.
Reviews

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BECKHOFF KL4012 Bus Terminal

Only 10 item(s) left in stock

  • Manufacturer: BECKHOFF

  • Product No.: KL4012

  • Country of origin:Germany

  • Product Type: Bus Terminals

  • Payment: T/T, Western Union

  • Weight: 80g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Description
FAQ
Shipping Returns
Additional details
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Description

The BECKHOFF KL4012 is a 2-channel analog output Bus Terminal designed for precise current-loop control within industrial automation systems. Operating on the K-bus system, this terminal generates analog signals in the range of 0 to 20 mA with a resolution of 12 bits, making it suitable for driving actuators, process controllers, and variable speed drives requiring current inputs.

Each channel of the BECKHOFF KL4012 is electrically isolated from the K-bus up to 500 V, protecting control-level components from field-side electrical noise and potential differences. The terminal field-side electronics are supplied via the 24 V DC power contacts, ensuring electrical separation and simple system design.

Features

  • Two single-ended analog output channels.
  • Analog output current range of 0 to 20 mA.
  • 12-bit resolution for precise analog control.
  • Electrical isolation of 500 V between the K-bus and the signal lines.
  • Support for optional control and status bytes via the process image.
  • Direct integration with standard K-bus couplers and controllers.

Applications

  • Analog control of valves, positioning units, and actuators.
  • Integration with variable frequency drives (VFD) via current reference inputs.
  • Process loop integration and transmitter reference signaling.
  • General industrial automation and machine control architectures using current-driven loops.

Technical Specifications

General and Signal Specifications

Parameter Specification
Manufacturer BECKHOFF
Model KL4012
Product Type Analog Output Bus Terminal
Number of Channels 2
Signal Current Range 0 to 20 mA
Resolution 12 bit
Output Error < ±0.1 % (relative to full scale value)
Load Resistance < 500 ohms
Conversion Time approx. 1.5 ms
Technology Single-ended

Electrical Specifications

Parameter Specification
Power Supply 24 V DC via power contacts (or 15 V DC via KL9515 potential supply terminal)
Current Consumption (K-bus) typ. 60 mA
Current Consumption (Power Contacts) typ. 50 mA + load
Electrical Isolation 500 V (K-bus / signal voltage)
Process Image Bit Width Output: 2 x 16-bit data (2 x 8-bit control/status optional)

Mechanical and Environmental

Parameter Specification
Weight approx. 80 g
Operating Temperature -25 to +60 degC
Storage Temperature -40 to +85 degC
Relative Humidity 95 %, non-condensing
Protection Rating IP20
Installation Position Variable

Connections / Interfaces

Terminal Contact Function
Terminal 1 Analog Output 1+
Terminal 2 Analog Output 2+
Terminal 3 +24 V DC (Power Contact)
Terminal 5 Analog Output 1-
Terminal 6 Analog Output 2-
Terminal 7 0 V (Power Contact Ground)

Installation Guidelines

  1. Ensure the entire industrial control system and power supply are fully de-energized before beginning installation, modification, or maintenance tasks.
  2. Mount the BECKHOFF KL4012 Bus Terminal onto a standard 35 mm DIN rail (EN 60715) by sliding it into place until the locking mechanism engages securely.
  3. Verify alignment with adjacent bus terminals to ensure proper mechanical connection and contact integrity of the internal K-bus and power contacts.
  4. Connect signal lines to the designated terminal points according to the connections table using appropriate conductor sizes.
  5. Upon physical integration, configure the terminal using TwinCAT or compatible controller environment ensuring the process image matches the terminal parameters.
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Key Features:
#Bus Terminals #K-bus

What is the primary function of the BECKHOFF KL4012 Bus Terminal?
The BECKHOFF KL4012 is a 2-channel analog output terminal designed to output precise current signals in the range of 0 to 20 mA to control field devices such as actuators, valves, and speed controllers.

What resolution does the BECKHOFF KL4012 provide?
The BECKHOFF KL4012 offers 12-bit resolution, providing detailed control steps for connected industrial current-loop devices.

How is the BECKHOFF KL4012 Bus Terminal powered?
The BECKHOFF KL4012 is supplied with 24 V DC power via the terminal's integrated power contacts, or alternatively 15 V DC with the addition of a KL9515 potential supply terminal.

Does the BECKHOFF KL4012 require manual configuration or addressing?
No, the BECKHOFF KL4012 does not require manual address or hardware configuration settings; it is automatically identified and integrated within the K-bus system.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Germany

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