Siedle HTA 811-0 SH/S Analog In-House Telephone, Black High-Gloss 200041548-00

In an apartment building with a Siedle analog door intercom, a resident answers the door call from the comfort of the hallway using this sleek, black high-gloss telephone. The HTA 811-0 SH/S connects to the existing 1+n wiring and provides clear communication with visitors.

Key specifications

• System compatibility: Analog (1+n wiring)
• Colour: Black
• Finish: High-gloss
• Mounting type: Surface-mounted
• Number of buttons: 4
• Door release function: Yes
• Mute function: Yes (ringing tone)
• Light function: Yes (staircase light, system dependent)
• Internal communication: Yes (system dependent)
• Ringing tone volume control: Yes
• Connection type: Screw terminals
• Material: High-quality plastic
• Operating temperature: 0 °C to +40 °C
• Protection class: IP20
• Power supply: Via system bus
• Installation: 1-man installation
• Design: Modern, compact
• Compatibility notes: Also compatible with Siedle In-Home bus via a/b interface

Why choose it

The high-gloss black finish adds a modern touch to any interior, while the four buttons provide essential functions: door release, light switching, mute, and internal communication (where supported). The surface-mounted design allows for easy installation on any wall.

Ideal use cases

• Apartments with Siedle analog intercom systems
• Offices requiring a simple internal telephone for door communication
• Retrofitting existing 1+n wiring installations

Good to know

The HTA 811-0 SH/S is powered directly from the system bus, eliminating the need for a separate power supply. It is also compatible with Siedle In-Home bus systems when used with an a/b interface.