Schneider Electric TWDLMDA20DRT Modular Base Controller

Schneider Electric TWDLMDA20DRT is a Twido modular base controller that expands a 24 VDC Twido PLC system with 12 digital inputs and 8 outputs (6 relay outputs and 2 transistor‑source outputs), organized across output commons COM0–COM3 for compact, field‑bus‑free I/O expansion. Operating from 24 V DC, it supports up to 2 A per output and up to 8 A per common line, enabling direct control of relays, solenoids, or DC loads in small automation projects. The module provides per‑point and per‑group load ratings including AC1 resistive up to 500 VA, AC14 250 VA, AC15 200 VA, and DC1 60 W, DC13 30 W (L/R 150 ms); the minimum switching load is 0.1 mA/0.1 VDC and the initial contact resistance is ≤30 mΩ. Dielectric strength is 1500 VAC between output circuits and internal electronics or between output groups, with a mechanical life of at least 20 million operations (no load 18,000 h). TwidoSuite programming support and DIN‑rail mounting make this a compact solution for small‑to‑midrange automation, with the listed COM configuration: COM0 2 outputs, COM1 3 NO contacts, COM2 2 NO contacts, COM3 1 NO contact. Note that regional Schneider Electric pages indicate the model has been discontinued in recent years, with sale ending in 2022 and service ending in 2023 in some markets.