TWDDDO8TT Twido Expansion Module – 8 Transistor Outputs | Schneider

Product Brief

• TWDDDO8TT – Twido expansion module with 8 transistor outputs (0.3 A source, 24 V DC).
• Removable screw terminal block, 1 common line, IP20 protected.
• Ideal for small to medium automation systems requiring reliable discrete control.

Technical Specifications

• Brand: Schneider Electric
• Model: TWDDDO8TT
• Series: Twido
• Discrete outputs: 8 transistor (source)
• Output voltage: 24 V DC
• Current per channel: 0.3 A
• Max current per common: 2.9 A
• Voltage limits: 20.4…28.8 V DC
• Response time: 300 µs (ON) / 450 µs (OFF)
• Residual voltage: 0.2 V at state 1
• Max inductive load: 2000 mH
• Tungsten load: 16 W
• Protection: Overload + short-circuit
• Isolation: 1500 Vrms (photocoupler)
• Current consumption: 10 mA (5 V) / 20 mA (24 V) at ON; 5 mA (5 V) at OFF
• Operating temp: 0…55 °C
• Storage temp: -25…70 °C
• Weight: 0.085 kg
• IP degree: IP20

Installation & Wiring

• Mount on DIN rail or panel using standard Twido base.
• Wire removable screw terminals: OUT_DIS#0 to #7, COM+, V+.
• Use shielded cables in noisy environments.
• Terminal layout: (0)~(7) outputs, (COM+) common, (V+) power.

Compatibility & System Integration

• Directly compatible with all Twido programmable controllers.
• No extra adapter needed for Twido expansion bus.
• Supports source logic – suitable for most industrial PLC systems.

Environmental & Durability

• IP20 – protected against objects >12.5 mm.
• Wide temperature range: 0…55 °C operation, -25…70 °C storage.
• Withstands vibration and humidity per industrial standards.
• 1500 Vrms isolation – safe signal separation.

Calibration & Maintenance

• No field calibration required – factory-tested.
• Periodic cleaning of terminals and visual inspection recommended.
• LED indicators for each output simplify troubleshooting.
• Removable terminal block allows fast replacement without rewiring.

Certifications & Standards

• UL and CSA certified
• CE marked – compliant with EU directives
• RoHS and REACH compliant (upon request)

What’s in the Box

• 1 × TWDDDO8TT expansion module
• 1 × removable screw terminal block (pre-installed)
• Quick start guide (printed)
• Warranty card (12 months)

Shipping & Delivery

• 12-24 hours dispatch from warehouse.
• Carriers: FedEx, UPS, DHL – tracking provided.
• Global shipping with insurance and customs support.

Expert Review

• Performance: Fast 300 µs response – ideal for high-speed sorting and packaging.
• Reliability: Short-circuit protection and 1500 V isolation reduce downtime.
• Value: Cost-effective expansion for Twido systems – easy to install and maintain.

Manager’s Insight

• For plant managers: this module simplifies output expansion without complex programming.
• Common point design reduces wiring – saves panel space and labor.
• Proven in HVAC, conveyor, and lighting control applications.

Application Scenarios

• Conveyor systems – drive solenoids and indicator lamps.
• Packaging machines – control actuators and alarms.
• HVAC – manage fans, dampers, and valves.
• Lighting control – switch 24 V LED strips and signals.
• Material handling – interface with sensors and relays.

Frequently Asked Questions

• Q: Can I use this module with a 12 V DC system?
  A: No. It requires 20.4…28.8 V DC – strictly 24 V nominal.
• Q: What is the maximum cable length for outputs?
  A: Keep under 30 m to avoid voltage drop and noise.
• Q: How do I replace a faulty output?
  A: Replace the whole module – outputs are not individually serviceable.
• Q: Does it support PWM or analog output?
  A: No. Only discrete ON/OFF transistor outputs.
• Q: Is there a software configuration needed?
  A: No – plug and play with Twido base. No DIP switches.
• Q: Can I connect it to a non-Twido PLC?
  A: Only with a special adapter – not recommended.
• Q: What happens if I overload an output?
  A: Short-circuit protection activates – resets after fault clears.

Buyer’s Guide & Selection Tips

• Verify your PLC is Twido series – otherwise need an adapter.
• Check total current per common: max 2.9 A – distribute loads evenly.
• For inductive loads (relays, solenoids), add flyback diodes externally.
• Choose this module if you need 8 source outputs in a compact footprint.
• For sinking outputs, consider TWDDDO8TT (sinking variant) – not this model.
• Ensure 24 V DC power supply is stable within 20.4…28.8 V range.

Contact & Support

• Sales inquiries: sales@powergearx.com
• WhatsApp: +86 18030005825
• Technical support: support@powergearx.com

Copyright © 2026 Powergear X Automation Limited. All rights reserved.
Original Source: https://www.powergearx.com/