TWDDRA8RT Schneider Electric Discrete Output Relay Module

Product Insight

• TWDDRA8RT is a discrete output module from Schneider Electric’s Twido series.
• It provides 8 relay outputs with 2A current per channel.
• Each output is normally open (NO) with a single common point.
• This module suits small to mid-size control systems requiring reliable switching.
• Oiltech Controls recommends this module for simple on/off actuator control.

Key Technical Data

• Outputs: 8 relay, 8 NO contacts
• Current: 2A per channel, 7A per common
• Response Time: ≤7 ms
• Isolation: 1500 Vrms (channel to logic)
• Power Consumption: 30 mA @5V DC (ON), 40 mA @24V DC (ON), 5 mA @5V DC (OFF)
• Contact Resistance: 40000 µOhm
• Weight: 0.11 kg
• Marking: CE certified

Environmental & Certifications

• Operating Temp: 0…55 °C
• Storage Temp: -25…70 °C
• Protection: IP20
• Certifications: UL, CSA

Terminal Block Reference

• PLC n°1: OUT_DIS#0 to #7, COM1_POS#4-7
• PLC n°2: COM0_NEG#0-3, COM1_NEG#4-7, and output assignments
• Refer to the user manual for exact wiring diagrams.

Ideal Applications

• Small conveyor systems
• Packaging machinery
• HVAC damper controls
• Lighting or alarm panels
• Any discrete on/off load under 2A

Oiltech Controls Review

• This module offers solid relay performance for simple logic tasks.
• Its 7 ms response suits most industrial switching needs.
• We recommend verifying common current limits (7A max).
• Good replacement choice for legacy Twido systems.
• Always use external protection for inductive loads.

Why Buy From Oiltech Controls?

• We bring 15+ years of industrial automation expertise.
• We ship globally via FedEx, UPS, or DHL.
• All parts are tested before dispatch.
• We offer a 12-month warranty on every module.
• We help support obsolete control systems.
• Technical verification ensures correct configuration.

Frequently Asked Questions

Q: Is this module suitable for high-frequency switching?

A: No. Relay outputs are best for low-frequency applications. For high-speed, consider transistor outputs.

Q: Can I mix AC and DC loads on the same module?

A: Yes, each relay is isolated, but check voltage ratings per contact.

Q: What is the maximum total current for all outputs combined?

A: There is no combined total limit, but each common supports 7A. Plan your load distribution carefully.

Q: Does this module support hot swapping?

A: No. Disconnect power before removing or installing the module.

Q: How do I protect outputs from inductive kickback?

A: Add external freewheeling diodes or RC snubbers across the load.

Shipping & Warranty

• Dispatch: 24-28 hours from order confirmation.
• Shipping Partners: FedEx, UPS, DHL.
• Warranty: 12 months against defects.
• All items are tested industrial surplus or refurbished.

Contact Us

For inquiries: info@oiltechcontrols.com

WhatsApp: +86 158 8020 0923

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