TWDDRA8RT Twido 8-Channel Relay Output Module | Schneider

TWDDRA8RT – Twido 8-Channel Relay Output Module

Discrete output module with 8 relay outputs. Ideal for industrial logic control. Compact, reliable, and easy to integrate.

Key Features

• 8 isolated relay outputs — normally open (NO)
• 2 A per channel | 7 A per common
• Response time ≤ 7 ms — fast switching
• 1500 Vrms isolation (channel to logic)
• Low power draw — 30 mA @ 5 VDC / 40 mA @ 24 VDC
• Removable screw terminal — easy wiring

Technical Specifications

• Brand: Schneider Electric
• Model: TWDDRA8RT
• Series: Twido
• Outputs: 8 relay (form A)
• Contact resistance: 40 mΩ (max)
• Response time: ≤ 7 ms (on/off)
• Isolation: 1500 Vrms (1 min)
• Current consumption:
  • 30 mA @ 5 VDC (all inputs ON)
  • 40 mA @ 24 VDC (all inputs ON)
  • 5 mA @ 5 VDC (all inputs OFF)
• Operating temp: 0…55 °C
• Storage temp: -25…70 °C
• Protection: IP20 (front)
• Weight: 0.11 kg

Installation & Wiring

• Mounting: DIN rail or panel
• Terminals: Removable screw block (included)
• Wiring guide:
  • COM0_NEG#0-3 (common for outputs 0–3)
  • COM1_NEG#4-7 (common for outputs 4–7)
  • OUT_DIS#0 … OUT_DIS#7 — individual output terminals
  • TB / ALT — optional auxiliary connections
• Torque: 0.5 Nm (recommended)

Compatibility & Integration

• Directly compatible with Twido PLC base units
• Works with Modicon M221 / M241 via expansion bus
• Firmware update not required — plug & play
• Supports IEC 61131-3 programming environments

Certifications & Standards

• UL listed (File E164334)
• CSA certified (Class I, Div. 2)
• CE marked — meets EU directives
• RoHS compliant

Environmental & Durability

• Ambient temperature: 0…55 °C (operation)
• Storage: -25…70 °C
• Humidity: 5…95% RH (non‑condensing)
• Vibration: 2 g (5…500 Hz)
• Shock: 15 g (11 ms)

Maintenance & Diagnostics

• LED indicators: green RUN, yellow output status
• No routine maintenance required
• Easy fuse replacement (external, per channel)
• Self‑diagnostic via PLC software

Delivery & Warranty

• Warranty: 12 months (manufacturer defects)
• Shipping: 12‑24 hours (business days)
• Carriers: FedEx, UPS, DHL — trackable
• Original packaging with terminal block

Application Scenarios

• Conveyor belt controls — start/stop signals
• Packaging machines — solenoid valves
• HVAC dampers — on/off actuation
• Lighting control — industrial LED banks
• Pump starters — small motor contactors

Expert Review

Industrial control engineer — “The TWDDRA8RT offers a perfect balance between cost and performance. Its 7 ms response time and 1500 V isolation make it suitable for noisy environments. The removable terminal block simplifies field replacement — a thoughtful design for maintenance teams.”

Manager’s Insight

Product manager, Powergear X — “We selected this module for its proven reliability in thousands of installations. The 2 A per channel handles most loads, while the common point layout reduces wiring complexity. A solid choice for system integrators who value uptime.”

Compatible Equipment

• Twido TWDLC••• base PLCs
• Modicon M221 / M241 / M251
• Any 24 VDC logic controller with expansion bus
• Third‑party PLCs with compatible I/O connector

Frequently Asked Questions

• Can I use this module with 120 VAC loads?

  Yes, relays are rated for 2 A at 250 VAC / 30 VDC.

• Is the terminal block included?

  Yes, a removable screw terminal block is supplied.

• What is the maximum switching frequency?

  Approximately 10 Hz (mechanical limit).

• Does it support hot‑swapping?

  No, always disconnect power before insertion/removal.

• How do I reset a tripped output?

  Cycle the output via PLC program or power cycle.

Experience‑Based Q&A

• We had intermittent faults with other modules. How does this one perform?

  The TWDDRA8RT uses gold‑plated contacts, reducing oxidation. Our field data shows < 0.1% failure rate per year.

• What if I need more than 8 outputs?

  You can add up to 7 expansion modules to the Twido base (total 64 I/O).

• Is there a software tool for diagnostics?

  Use TwidoSuite or EcoStruxure Machine Expert — both display channel status.

Selection Guide

• Choose TWDDRA8RT if:
  • You need 8 relay outputs
  • Load current ≤ 2 A per channel
  • You prefer screw terminals over spring clamp
• Consider TWDDOA8RT (transistor) for:
  • High‑speed switching (> 100 Hz)
  • DC loads only
• Need mixed outputs? Choose TWDDMM••• series.

Ordering Information

• Part number: TWDDRA8RT
• Included: Module, terminal block, user manual
• Optional: Pre‑wired cable (ref. TSXCAP•••)

Contact us for bulk pricing or technical support:
sales@powergearx.com | +86 18030005825 (WhatsApp)

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Original Source: https://www.powergearx.com/