Siedle Módulo de teclas BTM 650-04 DG gris oscuro mica 4 teclas 200038797-00

In a Siedle Vario door station, the BTM 650-04 DG provides four clearly labelled call buttons for apartments or offices. The dark grey mica finish blends with modern facades, while white LED nameplate illumination keeps labels readable at night.

Key specifications

• Product type: Button module
• Number of call buttons: 4
• System compatibility: Siedle In-Home Bus
• Colour: Dark grey mica
• Material: High-quality plastic
• Nameplate illumination: Yes, white LED
• Nameplate type: Exchangeable, front-removable
• Connection technology: 2-wire bus
• Mounting type: Flush-mounted or surface-mounted (requires separate frame/housing)
• Operating voltage: Via In-Home Bus
• Protection class: IP20 (module, higher with appropriate housing)
• Operating temperature range: 0°C to +40°C
• Module dimensions (W x H): 99 mm x 99 mm
• Depth: Approx. 27 mm
• Functions: Call, door opening, light switching (configurable)
• Design series compatibility: Siedle Vario
• Installation: Plug-in connection, no screws for bus connection
• Special features: Integrated bus coupling unit

Why choose it

The BTM 650-04 DG combines four call buttons in a compact module that matches the Siedle Vario design line. Its front-removable nameplates simplify labelling, and the integrated bus coupling reduces wiring effort.

Ideal use cases

• Multi-tenant residential buildings with up to four apartments
• Office entrances requiring multiple call buttons
• Upgrading existing Siedle In-Home Bus systems

Good to know

The module is designed for use with a separate Siedle Vario frame or housing. It connects directly to the 2-wire In-Home Bus without additional power supply.