1 of 1

Beckhoff EL9227-5500 EL Series Overcurrent Protection Terminal

Beckhoff EL9227-5500 EL Series Overcurrent Protection Terminal

Only 10 item(s) left in stock
  • Manufacturer: BECKHOFF

  • Product No.: EL9227-5500

  • Country of origin:Germany

  • Product Type: Overcurrent Protection Terminals

  • Payment: T/T, Western Union

  • Weight: 2000g

  • Dimensions: 12 mm x 100 mm x 68 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

Quantity
View full details

Description

Providing precise circuit-level protection, the Beckhoff EL9227-5500 electronic overcurrent protection terminal distributes and monitors 24 V DC power across two channels within EtherCAT I/O networks. This module integrates adjustable current limit settings, diagnostic pre-warnings, and physical LED status buttons, making it a critical component for safeguarding sensitive field sensors, actuators, and industrial controllers from localized electrical faults. By isolating individual overloaded channels, the terminal prevents system-wide voltage sags and maximizes total machinery uptime.

Features

  • 2-Channel Protection: Two independent 24 V DC channels with continuous monitoring and discrete electronic shutdown.
  • Adjustable Current Ratings: Trip currents can be programmed from 1 A to 10 A in steps of 1 A, with a maximum combined sum current of 10 A.
  • Intelligent Diagnostic Warnings: Configurable load warnings (50% to 100%) and low-voltage warnings (17 V to 24 V DC) prevent unexpected downtime.
  • Hardware Redundancy: Dual integrated 15 A fail-safe fast fuses provide hardware-level backup protection on both channels.
  • Enhanced Physical Interfaces: Features integrated LED diagnostic buttons on the front plate for direct manual control and quick local troubleshooting.

Applications

  • Control Cabinet Power Distribution: Safe division of 24 V DC main lines into branch circuits for PLC controllers, HMIs, and networking devices.
  • Industrial Sensor/Actuator Protection: Segmented protection of field devices to prevent localized cable damage or shorts from collapsing the main power rail.
  • Automated Assembly & Robotic Cells: Protects motion control auxiliary lines and safety circuits where temporary overloads may occur.

Technical Specifications

Technical Parameter Specification Value
Manufacturer Beckhoff
Model Number EL9227-5500
Nominal Operating Voltage 24 V DC
Number of Channels 2 (Inputs: 2, Outputs: 2)
Rated Output Current Adjustable 1 A to 10 A (in 1 A steps; max. sum 10 A)
E-bus Current Consumption Typically 80 mA
Electrical Isolation 500 V (E-bus / signal voltage)
Overvoltage Power-off Threshold >= 32 V DC
Integrated Fail-Safe Element 15 A (F) per channel
Operating Temperature 0 to +55 degC
Storage Temperature -25 to +85 degC
Housing Material Polycarbonate
Dimensions (W x H x D) 12 mm x 100 mm x 68 mm
Connection Cross-Section (Solid/Stranded) 0.08 to 2.5 mm² (AWG 28 to 14)
Connection Cross-Section (with Ferrule) 0.14 to 1.5 mm² (AWG 26 to 16)
Stripping Length 8 to 9 mm
Approvals and Markings CE, cULus, cURus

Empirical Engineering Insights

Alternative Models & Compatibility

The EL9227-5500 differs from the basic EL9227 variants by offering extended configuration capabilities directly via the TwinCAT CoE (CoE directory) system. Standard EL9227 terminals typically use physical rotary switches or fixed parameters. In contrast, the EL9227-5500 allows dynamic adjustments of current steps and warning parameters over the EtherCAT backplane, which requires a corresponding up-to-date ESI (XML) device file inside TwinCAT.

Application Pitfalls & Engineering Notes

Keep in mind that the total sum of current through the power contacts must not exceed 10 A continuously. When installing multiple high-load EL9227-5500 terminals side-by-side, calculate the cumulative thermal profile inside the panel. In unventilated control boxes, operating at ambient temperatures near +55 degC can lower the thermal hold duration of the electronic switch-off, causing premature tripping at transient peak currents.

Commissioning & Wiring Tips

Use standard spring-actuated terminations. For stranded wires, utilizing gas-tight crimped ferrules is highly recommended to prevent micro-arcs and transient resistance fluctuations. Ensure that the 24 V DC common negative rail (0 V) is bonded properly to the primary control cabinet ground to allow reliable detection of low-resistance earth faults.

Installation Guidelines

CRITICAL WARNING:

Risk of arc flash and electrical damage. Isolate all 24 V DC field supply currents and disconnect the main AC/DC control transformer prior to terminal insertion or extraction. Never insert or pull terminals under load.

1
Mount the terminal on a standard 35 mm DIN rail conforming to EN 60715, ensuring the locking slide is secure.
2
Slide the terminal adjacent to the existing EtherCAT terminals so that the lateral tongue-and-groove system and gold power contacts engage cleanly.
3
Strip field wiring cables to 8–9 mm. Depress the terminal spring mechanism with a small flathead screwdriver, insert the conductor, and release to lock.
4
Energize the backplane, run TwinCAT System Manager, scan the EtherCAT box topology, and configure the CoE threshold parameters for output channels 1 and 2.

How do you adjust the rated current limit on this terminal?

The overcurrent trip limits are fully adjustable from 1 A to 10 A in 1 A increments. These settings are customized and written via the CAN over EtherCAT (CoE) online directory inside TwinCAT.

What is the E-bus power draw for the Beckhoff EL9227-5500?

The module draws a typical current of 80 mA from the E-bus. System designers must ensure the upstream EtherCAT Coupler or power supply terminal provides adequate current for the total E-bus load.

How does the diagnostic warning system function on this module?

This module provides adjustable pre-warning thresholds. The load warning is adjustable from 50% to 100% of the set current, and the low-voltage pre-warning is adjustable from 17 V to 24 V DC, enabling proactive maintenance before a full trip occurs.

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

Recently Viewed Products

Technical knowledge

Micro Drive Specialist EMS Bets on Custom Engineering to Broaden Market Appeal

UK micro-drive specialist EMS is pairing Faulhaber high-torque gearheads and compact motion controllers with in-house custom engineering—aiming beyond catalog sales into tailored mechatronics.

Bringing Object-Oriented Thinking to PLC Programming

Copy-paste ladder does not scale. Object-oriented PLC techniques—user-defined structures and instructions—cut duplication, propagate fixes once, and keep large multi-device programs readable.

Why Process Safety Management Programs Fail Even When OSHA Boxes Are Checked

OSHA boxes checked is not the same as a living PSM system. Refinery history shows programs fail when procedures, training, contractors, and investigations drift from how the plant actually runs.

What Is SCADA? Supervisory Control Without Replacing the PLC

SCADA sits above PLCs and RTUs: it acquires field data, alarms operators, and issues supervisory commands across plants and remote assets—without replacing local deterministic control.

What Is a VFD? Variable Frequency Drives That Actually Move the Needle

A VFD turns fixed-frequency mains into controlled voltage and frequency so AC motors match real load—cutting pump and fan energy while tightening torque, soft-start, and braking behavior.

What Is a PLC? The Controllers That Still Run the Plant Floor

PLCs still run the plant floor: scan cycles, I/O, and IEC 61131-3 languages decide whether machines stay deterministic. Here is how controllers work, where they win, and where they strain.