Beckhoff EtherCAT Box, 4DI/4DO, 24 V DC, 0.5 A, M8 Connectors - EP2308-0001
The Beckhoff EP2308-0001 is a compact EtherCAT Box that integrates four digital inputs and four digital outputs in one rugged, field-mounted unit. Operating at 24 V DC with 3 ms input filtering and 0.5 A short-circuit-proof outputs, it provides reliable distributed I/O control with M8 screw-type connections and LED signal indicators.
Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Beckhoff |
| Category |
Industrial Automation |
| Part Number |
EP2308-0001 |
| Subcategory |
EtherCAT Digital I/O Box |
| Protocol |
EtherCAT |
| Bus Interface |
2 × M8 socket, 4-pin, a-coded, shielded |
| Specification Standard |
EN 61131-2, type 1/3 |
| Number of Channels |
4 digital inputs + 4 digital outputs |
| Connection Type |
M8 × 1, 3-pin, a-coded screw connectors |
| Input Filter |
3.0 ms |
| “0” Signal Voltage |
-3…+5 V |
| “1” Signal Voltage |
11…30 V (6 mA input current, EN 61131-2 type 3) |
| Sensor Supply |
From control voltage, max. 0.5 A, short-circuit-proof |
| Rated Load Voltage |
24 V DC (-15% / +20%) |
| Max. Output Current |
0.5 A per channel, individually short-circuit-proof |
| Switching Times |
TON: 50 µs, TOFF: 100 µs |
| Short-Circuit Current |
Typ. 1.5 A |
| Load Type |
Ohmic, inductive, or lamp loads |
| Distributed Clocks |
Not supported |
| Current Consumption |
120 mA |
| Auxiliary Power Current |
Typ. 20 mA + load |
| Electrical Isolation |
500 V |
| Power Supply Connection |
Feed: M8 male, 4-pin, a-coded; Downstream: M8 female, 4-pin, a-coded |
| Status Indication |
LED for each channel (input/output signal) |
| Protection Rating |
IP67 |
| Housing Type |
Rugged industrial housing for field mounting |
| Operating Temperature |
-25°C to +60°C |
| Storage Temperature |
-40°C to +85°C |
| Relative Humidity |
Up to 95%, non-condensing |
| Approvals/Markings |
CE, UL |
| Weight |
165 g (approx. 0.36 lbs) |
What our Experts Think
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A compact, high-performance servo solution, the Beckhoff AM8121-1F20-0000 from the AM8000 Series delivers precise motion control for demanding automation applications.
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0.16 kW servo power provides efficient performance, making it ideal for smaller machines, positioning systems, robotics, and motion-intensive equipment.
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48 V DC operation supports flexible machine designs, especially compact systems where space and energy efficiency are priorities.
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Designed for precision motion control, offering accurate positioning, smooth operation, and reliable dynamic response.
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Seamless integration with Beckhoff automation platforms, including TwinCAT and compatible servo drives, simplifies advanced motion applications.
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Compact motor design helps save installation space, enabling efficient machine layouts without compromising performance.
Q&A
Q: What is the Beckhoff AM8121-1F20-0000 Servo Motor?
A: The Beckhoff AM8121-1F20-0000 is a compact 48 V DC servo motor from the AM8000 series, designed for precise motion control in industrial automation systems.
Q: What are the key specifications of this servo motor?
A: It features 48 V DC operation, 0.16 kW rated power, 0.50 Nm rated torque, 2 Nm peak torque, and 3000 rpm rated speed for responsive motion applications.
Q: What applications is the AM8121-1F20-0000 used for?
A: It is commonly used in machine automation, robotics, handling systems, positioning equipment, and compact servo axis applications requiring accurate speed and position control.
Q: Is this motor compatible with Beckhoff motion systems?
A: Yes. The AM8000 series is designed for integration with Beckhoff servo drives and TwinCAT-based automation solutions.
Q: What type of feedback does the motor use?
A: The motor supports encoder-based feedback options for closed-loop control and precise positioning.
Q: Why choose a low-voltage servo motor?
A: A 48 V DC servo motor offers a compact, efficient solution for machines requiring precise motion control in smaller automation setups.
Q: What maintenance does a servo motor require?
A: Keep connectors clean, inspect cables, monitor operating temperatures, and ensure the motor is properly matched with its drive system for reliable performance.
Maintenance Tips
- Keep the motor housing clean and free from dust buildup.
- Inspect motor cables, connectors, and terminals regularly.
- Check for unusual noise, vibration, or temperature increases.
- Verify shaft alignment and mechanical coupling condition.
- Monitor load levels to prevent overheating or stress.
- Ensure proper ventilation around the motor.
- Inspect mounting hardware for tightness.
- Store in a dry, clean environment when not in use
Damage 
Loss 
Theft 
