GRENTON DIGITAL IN MINI Flush TF-Bus v3 Digital Input Module – 4 Dry Contact Inputs, 24V DC, IP20, 40x40x19mm

Unlike bulky DIN-rail input modules that demand dedicated enclosures, the GRENTON DIGITAL IN MINI Flush hides entirely behind a standard wall switch or inside a deep junction box. This compact 40 x 40 x 19 mm module brings four potential-free inputs to the TF-Bus v3 ecosystem, letting you keep existing switches, push buttons, and dry contact sensors while adding smart control. No separate control wiring is needed – power and communication flow over a single TF-Bus connection.

Highlights

• Four potential-free (dry contact) inputs for flexible wiring
• TF-Bus v3 communication – no separate control wiring required
• 24V DC power directly from the TF-Bus link
• Supports both monostable and bistable switches
• Compact 40 x 40 x 19 mm housing for discreet installation
• Works with the Grenton smart home ecosystem

In daily use

Once connected to a Grenton controller, each input can be assigned to a specific function – toggling lights, triggering scenes, raising blinds, or reading sensor states. Because the inputs accept dry contacts, they work with a wide range of existing wiring and accessories, making upgrades quick and less invasive. The low power consumption of up to 0.2 W keeps the module cool and eco-friendly.

Full specifications

• Product type: Digital input module
• Bus protocol: TF-Bus v3
• Number of inputs: 4
• Input type: Potential-free (dry contact)
• Mounting: Flush-mounted
• Power supply: 24V DC via TF-Bus
• Max. power consumption: 0.2 W
• Operating temperature: -10°C to +50°C
• Protection rating: IP20
• Dimensions: 40 x 40 x 19 mm
• Enclosure material: Plastic
• Compatibility: Grenton

Final note

The INP-310-T-01 is the discreet backbone for retrofitting smart control into existing electrical installations – no wall demolition, no visible modules, just four reliable dry contact inputs ready to be programmed.