EL3021

BECKHOFF

BECKHOFF EL3021 EtherCAT Terminal

SKU EL3021

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: BECKHOFF
  • Product No.: EL3021
  • Origin Germany
  • Product Type: EtherCAT Terminals
  • Payment: T/T, Western Union
  • Weight: 0.055 kg
  • Dimensions: 12 mm x 100 mm x 68 mm
  • Shipping port: Xiamen
  • Warranty: 12 months

Tags

EtherCAT Terminals
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Product Description

Description

The BECKHOFF EL3021 is a 1-channel analog input terminal designed for processing current signals ranging from 4 to 20 mA. As part of the EtherCAT Terminal system, this device handles differential signal acquisition with a 12-bit resolution, presenting data within a 16-bit format including sign. It integrates directly into modular industrial automation networks via the EtherCAT protocol, providing precise measurement data transfer to the controller.

This compact terminal features internal signal conditioning with an input filter limit frequency of 1 kHz and a default conversion time of 0.625 ms, which is configurable to suit application requirements. System communication and internal logic are powered via the E-bus, while electrical isolation protects the control system from field-side disturbances. The hardware supports standard and compact process image configurations, activatable FIR and IIR filters, and built-in limit value monitoring.

Features

  • 1-channel analog input terminal for 4 to 20 mA current signals
  • Differential input technology with 12-bit resolution (16-bit presentation including sign)
  • Configurable conversion time with a 0.625 ms default setting
  • Selectable FIR and IIR filters for signal conditioning
  • Integrated limit value monitoring capabilities
  • Standard and compact process image modes
  • E-bus powered system interface with 500 V electrical isolation

Applications

  • Industrial process control and automation systems
  • Analog sensor signal acquisition (transmitters, flow meters, pressure sensors)
  • Machine building and factory automation monitoring networks
  • Data logging and real-time process telemetry

Technical Specifications

General

Parameter Specification
Manufacturer BECKHOFF
Exact Model EL3021
Product Type EtherCAT Terminal
Design Form Compact terminal housing with signal LEDs
Material Polycarbonate

Signal and I/O

Parameter Specification
Number of Inputs 1 (differential)
Signal Type Differential current
Signal Current 4 to 20 mA
Internal Resistance Typ. 85 ohm + diode voltage
Surge Voltage Resistance Max. 35 V
Common-Mode Voltage UCM Max. 10 V

Electrical

Parameter Specification
Power Supply Via the E-bus
Current Consumption E-bus Typ. 130 mA
Current Consumption Power Contacts - (none)
Current Load Power Contacts Imax: 10 A
Electrical Isolation 500 V (E-bus / signal voltage)

Performance and Processing

Parameter Specification
Resolution 12 bit (16 bit presentation incl. sign)
Conversion Time 0.625 ms default setting, configurable, multiplex
Input Filter Limit Frequency 1 kHz
Measuring Error < +-0.3 % (relative to full scale value)
Bit Width in Process Image Inputs: 4 byte
Distributed Clocks - (not supported)

Connection Technology

Parameter Specification
Wiring Method Solid conductor, flexible conductor, and ferrule; spring actuation by screwdriver
Connection Cross-Section Solid / Stranded 0.08 to 2.5 mm² (AWG 28 to 14)
Connection Cross-Section Flexible with Ferrule 0.14 to 1.5 mm² (AWG 26 to 16)
Stripping Length 8 to 9 mm
Pluggable Wiring For all ESxxxx terminals

Mechanical and Environmental

Parameter Specification
Dimensions (W x H x D) 12 mm x 100 mm x 68 mm
Net Weight Approx. 55 g
Mounting On 35 mm DIN rail conforming to EN 60715 with lock
Protection Rating IP20
Operating Temperature Range -25 to +60 degC
Storage Temperature Range -40 to +85 degC
Relative Humidity 95 %, no condensation
Vibration / Shock Resistance Conforms to EN 60068-2-6 / EN 60068-2-27
EMC Immunity / Emission Conforms to EN 61000-6-2 / EN 61000-6-4

Installation Guidelines

  1. Ensure all power supplies and field voltage sources are switched off and locked out before performing any mechanical or electrical work.
  2. Verify the exact model number (EL3021) to ensure compatibility with your existing terminal assembly and E-bus current budget.
  3. Mount the terminal onto a standard 35 mm DIN rail (EN 60715) by snapping it securely into place using the integrated locking mechanism.
  4. Connect signal wires using approved solid or stranded conductors with appropriate wire preparation and stripping lengths (8 to 9 mm). Actuate the spring terminals using a suitable screwdriver.
  5. Check all potential distributions, power contact jumpers, and shield connections before energizing the system.
  6. Power up the controller and verify proper module recognition and LED diagnostic status within the TwinCAT engineering environment.
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 EL3021?
The BECKHOFF EL3021 is a 1-channel analog input EtherCAT terminal designed to process 4 to 20 mA current signals with differential input technology.
How is power supplied to the BECKHOFF EL3021 terminal?
The BECKHOFF EL3021 receives its internal power supply via the E-bus, with a typical current consumption of 130 mA.
What resolution and conversion time does the BECKHOFF EL3021 provide?
The BECKHOFF EL3021 features a 12-bit resolution (presented as 16 bits including sign) and a default conversion time of 0.625 ms, which is configurable.
What type of connection technology does the BECKHOFF EL3021 use?
The BECKHOFF EL3021 utilizes spring-actuated connection technology supporting solid conductors, stranded conductors, and ferrules within a cross-section range of 0.08 to 2.5 mm².
Does the BECKHOFF EL3021 support distributed clocks?
No, distributed clocks are not supported by the BECKHOFF EL3021 terminal.
Reviews

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EL3021

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BECKHOFF EL3021 EtherCAT Terminal

Only 10 item(s) left in stock

  • Manufacturer: BECKHOFF

  • Product No.: EL3021

  • Country of origin:Germany

  • Product Type: EtherCAT Terminals

  • Payment: T/T, Western Union

  • Weight: 55g

  • Dimensions: 12 mm x 100 mm x 68 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Description
FAQ
Shipping Returns
Additional details
Reviews

Description

The BECKHOFF EL3021 is a 1-channel analog input terminal designed for processing current signals ranging from 4 to 20 mA. As part of the EtherCAT Terminal system, this device handles differential signal acquisition with a 12-bit resolution, presenting data within a 16-bit format including sign. It integrates directly into modular industrial automation networks via the EtherCAT protocol, providing precise measurement data transfer to the controller.

This compact terminal features internal signal conditioning with an input filter limit frequency of 1 kHz and a default conversion time of 0.625 ms, which is configurable to suit application requirements. System communication and internal logic are powered via the E-bus, while electrical isolation protects the control system from field-side disturbances. The hardware supports standard and compact process image configurations, activatable FIR and IIR filters, and built-in limit value monitoring.

Features

  • 1-channel analog input terminal for 4 to 20 mA current signals
  • Differential input technology with 12-bit resolution (16-bit presentation including sign)
  • Configurable conversion time with a 0.625 ms default setting
  • Selectable FIR and IIR filters for signal conditioning
  • Integrated limit value monitoring capabilities
  • Standard and compact process image modes
  • E-bus powered system interface with 500 V electrical isolation

Applications

  • Industrial process control and automation systems
  • Analog sensor signal acquisition (transmitters, flow meters, pressure sensors)
  • Machine building and factory automation monitoring networks
  • Data logging and real-time process telemetry

Technical Specifications

General

Parameter Specification
Manufacturer BECKHOFF
Exact Model EL3021
Product Type EtherCAT Terminal
Design Form Compact terminal housing with signal LEDs
Material Polycarbonate

Signal and I/O

Parameter Specification
Number of Inputs 1 (differential)
Signal Type Differential current
Signal Current 4 to 20 mA
Internal Resistance Typ. 85 ohm + diode voltage
Surge Voltage Resistance Max. 35 V
Common-Mode Voltage UCM Max. 10 V

Electrical

Parameter Specification
Power Supply Via the E-bus
Current Consumption E-bus Typ. 130 mA
Current Consumption Power Contacts - (none)
Current Load Power Contacts Imax: 10 A
Electrical Isolation 500 V (E-bus / signal voltage)

Performance and Processing

Parameter Specification
Resolution 12 bit (16 bit presentation incl. sign)
Conversion Time 0.625 ms default setting, configurable, multiplex
Input Filter Limit Frequency 1 kHz
Measuring Error < +-0.3 % (relative to full scale value)
Bit Width in Process Image Inputs: 4 byte
Distributed Clocks - (not supported)

Connection Technology

Parameter Specification
Wiring Method Solid conductor, flexible conductor, and ferrule; spring actuation by screwdriver
Connection Cross-Section Solid / Stranded 0.08 to 2.5 mm² (AWG 28 to 14)
Connection Cross-Section Flexible with Ferrule 0.14 to 1.5 mm² (AWG 26 to 16)
Stripping Length 8 to 9 mm
Pluggable Wiring For all ESxxxx terminals

Mechanical and Environmental

Parameter Specification
Dimensions (W x H x D) 12 mm x 100 mm x 68 mm
Net Weight Approx. 55 g
Mounting On 35 mm DIN rail conforming to EN 60715 with lock
Protection Rating IP20
Operating Temperature Range -25 to +60 degC
Storage Temperature Range -40 to +85 degC
Relative Humidity 95 %, no condensation
Vibration / Shock Resistance Conforms to EN 60068-2-6 / EN 60068-2-27
EMC Immunity / Emission Conforms to EN 61000-6-2 / EN 61000-6-4

Installation Guidelines

  1. Ensure all power supplies and field voltage sources are switched off and locked out before performing any mechanical or electrical work.
  2. Verify the exact model number (EL3021) to ensure compatibility with your existing terminal assembly and E-bus current budget.
  3. Mount the terminal onto a standard 35 mm DIN rail (EN 60715) by snapping it securely into place using the integrated locking mechanism.
  4. Connect signal wires using approved solid or stranded conductors with appropriate wire preparation and stripping lengths (8 to 9 mm). Actuate the spring terminals using a suitable screwdriver.
  5. Check all potential distributions, power contact jumpers, and shield connections before energizing the system.
  6. Power up the controller and verify proper module recognition and LED diagnostic status within the TwinCAT engineering environment.
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Key Features:
#EtherCAT Terminals

What is the primary function of the BECKHOFF EL3021?
The BECKHOFF EL3021 is a 1-channel analog input EtherCAT terminal designed to process 4 to 20 mA current signals with differential input technology.

How is power supplied to the BECKHOFF EL3021 terminal?
The BECKHOFF EL3021 receives its internal power supply via the E-bus, with a typical current consumption of 130 mA.

What resolution and conversion time does the BECKHOFF EL3021 provide?
The BECKHOFF EL3021 features a 12-bit resolution (presented as 16 bits including sign) and a default conversion time of 0.625 ms, which is configurable.

What type of connection technology does the BECKHOFF EL3021 use?
The BECKHOFF EL3021 utilizes spring-actuated connection technology supporting solid conductors, stranded conductors, and ferrules within a cross-section range of 0.08 to 2.5 mm².

Does the BECKHOFF EL3021 support distributed clocks?
No, distributed clocks are not supported by the BECKHOFF EL3021 terminal.

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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