Schneider Electric NTSDDI0402HK Modicon Edge I/O NTS Digital Input 4Ch 24VDC Sink Hardened Remote I/O Module

The Schneider Electric NTSDDI0402HK is a Modicon Edge I/O NTS discrete input module kit with 4 configurable type 2/3 inputs at 12/24 V DC sink logic, pre-assembled on its NTSXBA0100H base for severe-environment use. Channels wire in 1, 2 or 3 wires with broken-wire and short-circuit diagnostics, covering an extended -40...70 degC range with conformal-coated electronics. It mounts on a DIN rail and connects to Modicon M262 or M580 controllers.

Technical Specifications

Certifications & Standards

• CE
• UKCA
• cULus
• RCM
• EN/IEC 61131-2

Selection Notes

The per-channel broken-wire and short-circuit diagnostics on the NTSDDI0402HK flag a disconnected sensor cable instead of silently reading a false OFF state, which matters on safety-adjacent interlocks. Configurable IEC 61131-2 type 2/type 3 compatibility lets the same channel accept either a standard PLC-type sensor or a lower-threshold proximity switch without swapping hardware. Choose this hardened build over the standard NTSDDI0402K when the panel sees vibration or condensation; both share the same 4-channel, 24 V DC sink electrical rating.