Schneider Electric TM3DI16K Modicon TM3 16 Input HE10 Module

TM3DI16K: TM3 16-input digital module with HE-10 connector

The TM3DI16K is a Modicon TM3 digital input module with sixteen 24 V DC inputs wired through a single HE-10 connector instead of terminal blocks. It targets installations that use pre-made cables, interface terminal boards or a marshalling panel, where plugging one connector is quicker and less error-prone than wiring sixteen conductors.

The electrical data are close to TM3DI16G, but this unit draws 5 mA per input at an impedance of 4.4 kΩ and is narrower at 21.4 mm. Seven Star LLC supplies the this unit in Oman and the GCC as an independent supplier in Muscat.

Input data for the TM3DI16K

The sixteen inputs are 24 V DC, sink or source, and conform to IEC 61131-2 Type 3. Input current is 5 mA and impedance is 4.4 kΩ. Guaranteed state 1 is 15 to 28.8 V DC with at least 2.5 mA, state 0 is 0 to 5 V DC with at most 1 mA, and response time is 4 ms on and off.

Lower input current than the terminal version means slightly less power is drawn from the sensor supply, but it also gives somewhat less wetting current to contacts, so check dry-contact switches in dusty or humid conditions.

Technical specifications of the TM3DI16K

Selection checklist and RFQ details for the TM3DI16K

Before ordering, confirm:

• an HE-10 mating cable or interface board is available
• the input current of 5 mA suits the field contacts
• sink or source convention for all sixteen points
• free TM3 positions on the controller

Send quantity, controller model and delivery location with the RFQ.

The TM3DI16K compared with other TM3 input modules

Cable length, isolation and bus use of the TM3DI16K

Unshielded cables of up to 50 m are allowed for the inputs. The module is isolated from the bus by 500 V AC, takes 34 mA at 5 V DC from the expansion bus and has one green LED per channel. The quoted MTBF is 250 years at 40 °C.

The datasheet does not list a conductor range for this model since the connection is a connector, so the cable data come from the accessory you choose.

Why an HE-10 connector on the TM3DI16K

An HE-10 connector is a multi-pole header used with ribbon cable. Combined with a terminal interface board or a prefabricated cable, it lets a panel builder wire the field side on the board and test the module separately, which supports factory acceptance testing and faster replacement. The datasheet lists the connector type but not the cable or interface accessories, so those must be selected separately.

This approach saves space too: the module is only 21.4 mm wide and 81.3 mm deep, narrower than the terminal-block 16-input version.

Mounting the TM3DI16K

The module measures 21.4 × 90 × 81.3 mm and clips on a 35 mm DIN rail or mounts on a panel with the kit. Operating temperature is −10 to 55 °C horizontal and −10 to 35 °C vertical, humidity is 10 to 95 % without condensation and the protection is IP20.

The weight shown on some listings looks inconsistent with the other TM3 digital modules, so this page does not quote it; check the physical weight on your delivery note if it matters for shipping.

Where the TM3DI16K is a good fit in Oman and the GCC

Marshalled I/O is common in switchgear rooms and control panels built for oil and gas, power and water projects, where field cables land on terminal rails and are then connected to the controller by prefabricated looms. The TM3DI16K suits this style because the field wiring is not touched when a module is replaced.

Certifications listed are CE, cULus, UKCA, RCM, EAC and cULus HazLoc.

Plan the marshalling in advance: assign one connector pin to each channel on the interface board, document the pin map next to the controller I/O list, and test the cable with a continuity checker before it is plugged into the module. A short, well-documented loom is the biggest practical advantage of this connector style.

Documents and quotation

The Schneider Electric datasheet for the this unit is attached on this page, so you can compare the listed values with your design before ordering.

To request a quotation for the TM3DI16K, send the quantity, delivery destination and any project reference through the RFQ form. Seven Star LLC supplies Schneider Electric automation products in Oman and the GCC as an independent supplier based in Muscat, and we confirm stock status and lead time against your request.