Beckhoff ES2008 Output Terminal Module

ES2008: EtherCAT 8-channel digital output terminal module, 24 VDC / 0.5 A per channel, version with pluggable split wiring base. Its electrical performance is identical to EL2008 of beckhoff, differing only in wiring structure.

Differences Between ES / EL / ED Versions

2. Core Electrical Specifications
3. Channel Specifications

Output channels: 8-channel single-ended NPN digital outputs

Rated voltage: 24 VDC (allowable fluctuation range: -15% ~ +20%)

Maximum current per channel: 0.5 A, equipped with short-circuit protection and reverse polarity protection

Maximum total carrying capacity of power contacts: 10 A

Permitted loads: Resistive loads, inductive solenoid valve loads, indicator light loads

Breaking energy: < 150 mJ per channel (compatible with small solenoid valves)

2. Timing & Isolation

Turn-on time Ton ≈ 60 μs, Turn-off time Toff ≈ 300 μs

Electrical isolation between E-bus and field loads: 500 VAC

Process image occupation: 8 output bits

3. Power Consumption

E-bus supply consumption: Typical 90 mA

Field supply: 15 mA quiescent current + load current of each channel

3. Mechanical & Environmental Specifications

Dimensions: 12 mm (W) × 100 mm (H) × 68 mm (D)

Weight: Approx. 55 g

Mounting: Standard 35 mm DIN rail

Protection class: IP20 (cabinet installation only)

Operating temperature: -25 ℃ ~ +60 ℃ (horizontal mounting); max. +45 ℃ for vertical mounting

Storage temperature: -40 ℃ ~ +85 ℃

Humidity: 95% RH, non-condensing

Certifications: CE, UKCA, cULus, EAC

Vibration / Shock resistance: Compliant with EN 60068-2-6 / EN 60068-2-27

4. Unique Advantages of ES2008 Pluggable Structure
5. The wiring base remains permanently on the cable side inside the control cabinet; the module body can be plugged and replaced separately.
6. No terminal cable disassembly required for equipment fault maintenance, greatly reducing downtime.
7. The base supports standard wire gauges: 0.08~2.5 mm² solid / stranded wires; 0.14~1.5 mm² for wires with cable lugs.
8. Standard wire stripping length: 8~10 mm, screw-tightened terminals.
9. Wiring Definition (Fully Compatible with EL2008)

Common power terminals: 24V+, 0V (unified power supply on module side)

Channel outputs: Ch1~Ch8 (NPN output, outputs 0 V when switched on)

Independent status LED for each channel; green light = output activated

6. Typical Application Scenarios
7. Control of machine tool solenoid valves and cylinder directional valves
8. Assembly line indicator lights and alarm buzzers
9. Drive of small relay coils
10. Output for conveying and material stop cylinders on packaging equipment
11. Production lines requiring frequent on-site IO module replacement (ES version is preferred)
12. Replacement & Compatibility Description
13. Direct interchangeable: ES2008 ↔ EL2008 (fully compatible in programming and EtherCAT configuration, only base structure differs)
14. High-density alternative: EL4008 (16 DO, saves DIN rail space)
15. High-current alternative: EL2024 (4 DO, 2 A per channel for large solenoid valve driving)
16. Diagnostic-equipped version: EL2014 (4 DO, with short-circuit channel fault diagnosis)
17. Selection Summary

Choose ES2008: Frequent equipment after-sales maintenance and fast IO module replacement needed

Choose EL2008: Fixed control cabinets with rare cable disassembly, lower cost

Choose ED2008: Fast on-site wiring without screwdrivers

Protection Class of Beckhoff ES2008

IP20 (Standard parameter from Beckhoff official manual)

Supplementary Explanation

1. EL2008, ED2008 and ES2008 in the same series feature identical housing protection structure, all rated IP20.
2. Definition of IP20 rating:

First digit 2: Prevents ingress of solid foreign objects ≥12.5 mm such as fingers

Second digit 0: No water or dust protection; must not be directly exposed to mist, dust or liquid

3. Application requirement: Must be installed inside a sealed electrical control cabinet, not for bare installation outdoors, in humid or dusty environments.
4. If high-protection field IO is required, select EP series EtherCAT junction boxes (IP65 / IP67).

Full List of Beckhoff ES2xxx Digital Output Modules with Pluggable Base (Matching EL2xxx specifications; ES = split pluggable wiring base)

1. Standard 0.5 A NPN Output (General Solenoid / Indicator Light, IP20)

2. ES Series with Special Voltage Outputs

3. Naming Rule Distinction for ES Series (3 wiring versions with identical electrical parameters)
4. ELxxxx: Integrated screw terminals, non-pluggable, standard low-cost version
5. ESxxxx: Split pluggable screw base (series that ES2008 belongs to), no cable disassembly during maintenance
6. EDxxxx: Integrated spring push-in terminals, tool-free fast wiring
7. EFxxxx: Split pluggable spring push-in base
8. General Common Parameters of ES2xxx Series
9. Protection class: All rated IP20, cabinet-use only
10. Bus isolation: 500 VAC isolation between E-bus and field loads
11. Power supply: 24 VDC field power, NPN low-side output (outputs 0 V when activated)
12. Protection functions: Short-circuit protection, reverse polarity protection, with channel status LEDs
13. Mechanical width: Standard 24 mm; ultra-slim 16 mm for ES2084 / ES2088
14. Special DO Modules Without ES Versions in the Same Series (No Split Base Variants, EL / ED Only)

EL2042: Relay output (no ES version available)

EL2062: 230 VAC triac output (no ES version available)

ELX2008: Explosion-proof intrinsically safe output (no ES version available)

TwinSAFE safety outputs EL29xx: No split-base ES variants available

Translation Notes

1. Industry standard terms unified:

DO = Digital Output, DIN rail, NPN low-side output, short-circuit protection, intrinsically safe, triac, quiescent current

2. Beckhoff official terminology retained: E-bus, EtherCAT, TwinSAFE
3. Unit symbols follow international industrial standards (VDC, A, μs, mJ, mm, ℃, mm²)
4. Tables maintain original structure for engineering document direct use