BECKHOFF

BECKHOFF EP2339-0021 EtherCAT Box

SKU EP2339-0021

In stock
  • 12-month warranty
  • Free returns within 30 days

  • Manufacturer: BECKHOFF

  • Product No.: EP2339-0021

  • Country of origin:Germany

  • Product Type: EtherCAT Box Modules

  • Payment: T/T, Western Union

  • Weight: 250g

  • Dimensions: 60 mm x 126 mm x 26.5 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The BECKHOFF EP2339-0021 is an industrial EtherCAT Box module designed for decentralized automation architectures. It features 16 digital channels that can be configured individually as either inputs or outputs, providing flexible system integration at the field level. By eliminating the need for a protective control cabinet, this device enables direct mounting on machines and equipment in challenging industrial environments.

This EtherCAT Box interfaces with the control network through shielded M8 connections, supporting high-speed communication and deterministic data transfer. The digital inputs conform to the EN 61131-2 Type 1/3 specification, while the digital outputs handle up to 0.5 A per channel, making the module suitable for interfacing with a wide range of industrial sensors, actuators, and valves.

Features

  • 16 digital channels, individually configurable as inputs or outputs.
  • M8 physical connection technology with 3-pin, A-coded interfaces.
  • IP65, IP66, and IP67 rated polyamide housing for direct machine installation.
  • Short-circuit proof sensor supply sourced directly from the load supply voltage.
  • Individual short-circuit protection for all digital output channels.
  • Integrated EtherCAT line topology with shielded M8 bus connections.
  • CE and UL compliance for global industrial applications.

Applications

  • Decentralized input/output routing on packaging machinery.
  • Direct valve terminal control in pneumatic and hydraulic systems.
  • Conveyor and material handling system sensor integration.
  • Field-level signal collection in automotive assembly lines.

Technical Specifications

General

Parameter Specification
Manufacturer BECKHOFF
Model EP2339-0021
Product Type EtherCAT Box (Configurable Digital I/O)
Housing Material PA6 (Polyamide)
Protection Rating IP65, IP66, IP67 (conforms to EN 60529)

Signal and I/O

Parameter Specification
Number of Channels 16 digital inputs or outputs, configurable
Input Specification EN 61131-2, Type 1/3
Input Filter Time 3.0 ms
"0" Signal Voltage -3 to +5 V
"1" Signal Voltage 11 to 30 V (6 mA input current, Type 3)
Sensor Supply From load supply voltage, max. 0.5 A total, short-circuit proof
Output Load Type Ohmic, inductive, lamp load
Max. Output Current 0.5 A per channel, individually short-circuit proof (sum max. 4 A)
Switching Times Typ. TON: 60 microseconds, typ. TOFF: 300 microseconds
Short-circuit Current Typ. 1.5 A

Electrical

Parameter Specification
Rated Load Voltage 24 V DC (-15% / +20%)
Current Consumption from US 120 mA
Auxiliary Power Current Typ. 20 mA + load
Electrical Isolation 500 V

EtherCAT and Communication

Parameter Specification
Protocol EtherCAT
Bus Interface Connection 2 x M8 socket, shielded, screw type
Power Supply Connection Feed: 1 x M8 male, 4-pin; Downstream: 1 x M8 female, 4-pin

Mechanical and Environmental

Parameter Specification
Dimensions (W x H x D) 60 mm x 126 mm x 26.5 mm
Weight Approx. 250 g
Operating Temperature -25 to +60 Celsius
Storage Temperature -40 to +85 Celsius
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 Mounting 2 x 3.5 mm holes for M3; 2 x 4.5 mm holes for M4

Connections / Interfaces

Interface Connection Type
Input/Output Channels 1 to 16 16 x M8, 3-pin, A-coded sockets
EtherCAT Input/Output (Bus) 2 x M8 sockets, shielded, screw type
Control/Sensor Power Feed 1 x M8 male connector, 4-pin
Power Downstream Link 1 x M8 female socket, 4-pin

Installation Guidelines

  1. Ensure the entire system supply power is completely de-energized before mounting, wiring, or servicing.
  2. Secure the module using the built-in fixing holes (M3 or M4 screws) on a flat, vibration-resistant mounting surface.
  3. Connect the EtherCAT bus lines using shielded, screw-type M8 cables to preserve noise immunity.
  4. Establish the power supply lines via the 4-pin M8 connector, ensuring proper voltage polarity of 24 V DC.
  5. Plug the digital sensor and actuator lines into the corresponding M8 channels. Tighten all connectors to the recommended torque specification to maintain the IP65/66/67 physical seal.

FAQ

Can the channels on the BECKHOFF EP2339-0021 be used as both inputs and outputs?
Yes, the BECKHOFF EP2339-0021 features 16 digital channels that can be individually configured to act as either inputs or outputs, allowing flexible adaptations for sensors and actuators.

What is the environmental protection rating of this module?
The BECKHOFF EP2339-0021 is certified with an IP65, IP66, and IP67 protection rating according to EN 60529, making it suitable for direct machine mounting without a separate control cabinet.

What is the maximum current capacity per output channel on the EP2339-0021?
Each digital output channel on the BECKHOFF EP2339-0021 can supply up to 0.5 A, with a maximum cumulative limit of 4.0 A across all channels. Each output is individually protected against short circuits.

What type of connection technology does this EtherCAT Box use?
The BECKHOFF EP2339-0021 uses 16 M8 3-pin (A-coded) sockets for input/output connections, shielded M8 sockets for the EtherCAT bus, and 4-pin M8 connectors for the feed and downstream power supply.

View all FAQs →

EP2339-0021
Quantity
Call sales Contact
Shipping & 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.
Reviews

More from this brand

Honeywell XF823A Binary Input Module
XF823AHoneywell XF823A Binary Input Module
Allen-Bradley 1746-IO8 SLC 500 Combination Input and Output Module
1746-IO8Allen-Bradley 1746-IO8 SLC 500 Combination Input and Output Module
Allen-Bradley 1785-L40B PLC-5/40 Controller Processor
1785-L40BAllen-Bradley 1785-L40B PLC-5/40 Controller Processor
Allen-Bradley 1746-BAS SLC 500 BASIC Module
1746-BASAllen-Bradley 1746-BAS SLC 500 BASIC Module
  • EP2339-0021
1 1
Only 10 item(s) left in stock
View full details
Product Description
Shipping Returns
Additional details
Reviews

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

Technical knowledge

Beckhoff EL4032 two-channel ±10 V EtherCAT analog output terminal

Replacing a Beckhoff EL4032: Wiring and Output Checks

A field checklist for replacing a Beckhoff EL4032, covering the ±10 V load, terminal map, power contacts, EtherCAT state, and watchdog behavior.

Yokogawa AAI835-S03 analog I/O module for replacement checks

Replacing Yokogawa AAI835: Wiring and Barrier Checks Before Swap

Before replacing a Yokogawa AAI835, verify the 4-in/4-out channel map, power-loss loop behavior, barrier type, output load, cable, and redundancy.

ABB PM891K01 3BSE053241R1 AC 800M processor unit

ABB PM891K01 Replacement: Check Redundancy Before Ordering

ABB PM891K01 article 3BSE053241R1 is the non-redundant AC 800M processor kit. Use this field checklist before replacement.

ABB TP853 3BSE018126R1 module termination baseplate

ABB TP853 Replacement Checks for CI853/CI855/CI857/CI861

Replacement checks for ABB TP853 3BSE018126R1: identify the installed CI853, CI855, CI857, or CI861 interface, record wiring, and verify communication after installation.

Allen-Bradley 5069-L330ERMS2 Compact GuardLogix 5380 safety controller

5069-L330ERMS2 Startup Checks: RTBs, I/O, and Motion Limits

Engineering checks for the Allen-Bradley 5069-L330ERMS2: controller capacity, separate RTB kits, local I/O limits, network-node limits, and motion-axis count.

ABB DSQC 351 3HNE 00006-1 DeviceNet INTERBUS gateway board

Replacing ABB DSQC 351: Controller and Network Checks

Checks to record before replacing ABB 3HNE 00006-1 DSQC 351: controller generation, X3/X5/X20/X21 wiring, DeviceNet settings, INTERBUS mapping, and LED states.