TM3DQ8T 8-Channel Transistor Output Module PNP 0.5A Screw | Schneider Electric

The Original New Schneider Electric TM3DQ8T is an 8-channel discrete output module for the Modicon TM3 I/O system, designed to expand the digital output capacity of Modicon M221, M241, M251, and M262 logic controllers. It provides 8 transistor outputs with source (PNP, positive) logic for 24V DC loads at 0.5A per channel [6†L11-L15]. A removable screw terminal block ensures secure field wiring [6†L23]. Part of the Modicon TM3 expansion family, it features a simple interlocking assembly mechanism for quick DIN rail mounting and is suitable for machine automation, conveyor control, and OEM applications.

Core Engineering Highlights:
8 PNP transistor outputs (source logic) | 0.5A per channel / 4A per group | 24V DC (19.2-28.8V) [6†L13-L14] | 450 µs ON/OFF response time [6†L17-L18] | Short-circuit protection with auto‑reset [6†L18-L20] | Reverse polarity protection [6†L21] | 500V AC isolation (output to logic) [6†L22] | Removable screw terminal block (5.08 mm pitch) [8†L14] | IP20 protection | –10°C to +55°C horizontal operation [8†L35]

Key Features:

• Original New Schneider Electric TM3DQ8T module

• 8 transistor outputs (PNP, source logic)

• 24V DC rated output voltage (19.2–28.8V range)

• 0.5A output current per channel, 4A per group (1 group of 8 channels)

• 450 µs turn-on / 450 µs turn-off response time [6†L17-L18]

• Short-circuit protection with auto‑reset after overload [6†L18-L20]

• Reverse polarity protection [6†L21]

• Clamping voltage: typically 50V DC [6†L21]

• Maximum tungsten load: <12W [6†L16]

• Leakage current: 0.1mA max when OFF [6†L15-L16]

• Voltage drop: <0.4V [6†L15]

• 500V AC isolation between output and internal logic [6†L22]

• Removable screw terminal block (11 x 2.5 mm², pitch 5.08 mm) [8†L14]

• Green LED per channel for output status indication [8†L13]

• Simple interlocking assembly with Modicon TM3 controllers

• DIN rail mounting (35 mm, TH35-7.5 or TH35-15) [8†L18]

• IP20 protection with protective cover in place [8†L38]

• Unshielded cable length: <30m [8†L15-L16]

Applications:

• Actuating solenoids, relays, and indicator lights in machine control

• Conveyor and material handling equipment

• Packaging machinery and assembly lines

• Controlling variable speed drives or devices with current/voltage inputs

• OEM equipment requiring Modicon TM3 output expansion

• Factory automation and process control systems

Technical Specifications:

System Compatibility:

• Schneider Electric Modicon M221 logic controllers [8†L3]

• Modicon M241 logic controllers [8†L3]

• Modicon M251 logic controllers [8†L3]

• Modicon M262 logic controllers [8†L3]

• EcoStruxure Machine Expert (formerly SoMachine) programming software

• Modicon TM3 I/O expansion bus

Installation Notes:

• For inductive DC loads, connect a free-wheeling diode in parallel to each load

• For inductive AC loads, use an RC snubber in parallel to each load

• Refer to Schneider Electric's output protection guidelines for inductive load applications [6†L27-L30]

• The module uses 1 common line for all 8 channels — all outputs share the same common [6†L12]

• Do not exceed the total group current of 4A per group [6†L14-L15]

Related Products:

• TM3DQ8TG – Spring terminal version of the 8-output transistor module

• TM3DQ16T – 16-channel transistor output module (PNP, 0.5A)

• TM3DQ8R – 8-channel relay output module

• TM3DI16 – 16-channel discrete input module

• TM3AI8 – 8-channel analog input module

• TM3AQ4 – 4-channel analog output module

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Schneider Electric, Modicon, and EcoStruxure are trademarks of Schneider Electric SE.