Siemens ZU-35 SF 26/01 The S1209 Series photoelectric smoke

The S1209 Series photoelectric smoke alarms are for use as an evacuation device in all dwelling units

The 3-CAB5 wall box and non-contoured door a re #16 AWG cold rolled steel

Download COSMO-4W Datasheet (PDF)

Commercial and office buildings

There are no address switches to set

Siemens ZU-35 SF 26/01 The S1209 Series photoelectric smokeThe dual zone input module (Model ZU 35) from Siemens Fire Safety is designed to provide two (2) independent initiating circuits. Up to 30 standard Siemens Fire Safety photoelectric detectors or flame detectors (excluding Models DF 3, DF 3A and DF 30) are supported by Model ZU 35. Additionally, any quantity of shorting type contact devices such as manual stations and thermal detectors can be accommodated and intermixed on each initiating circuit.