GROTHE SET 1122/601 audio door intercom standard set (74336)

Expandable 2-wire audio intercom system with illuminated bell button, multiple ring tones, and integrated door opener relay.

Overview

The GROTHE SET 1122/601 is a complete audio intercom set for single-family homes. It includes the TT 1122 outdoor unit, HT 601 indoor unit, and NG 1122 power supply. The system uses a simple 2-wire bus, allowing easy installation and expansion up to three indoor units per outdoor station.

What stands out

• Illuminated bell button on the weather-resistant outdoor unit (IP44)
• Indoor unit with door opener button, call volume control, and mute function
• Integrated relay for direct door opener control
• Multiple selectable ring melodies
• Expandable with additional indoor units

Technical details

• System type: Audio intercom
• Wiring: 2-wire bus
• Outdoor unit: Grothe TT 1122, surface-mounted, plastic, IP44, white/grey
• Indoor unit: Grothe HT 601, surface-mounted, white
• Power supply: Grothe NG 1122, DIN rail or surface-mounted, 12V AC output
• Operating temperature (outdoor): -20°C to +50°C
• Expandability: up to 3 indoor units per participant

Our verdict

A reliable and straightforward intercom set with clear audio, durable outdoor unit, and flexible installation options.