The Siemens 8WD4 420-0EA2 is a high-performance siren element designed for use in SIRIUS 8WD44 signaling columns with a 70 mm diameter. It provides reliable acoustic signaling in industrial environments. Key Features: Type: Multi-tone siren element Sound Output: Up to 102 dB Tones: 8 selectable tones Volume: Adjustable Color: Black Operating Voltage: 24 V AC/DC Current Consumption: Max. 30 mA Tone Frequencies: Ranges from 0.9 kHz to 3.5 kHz Protection Rating: IP65 – dust-tight and protected against water jets Material: Polycarbonate (PC) Mounting Method: Bayonet Dimensions: Diameter 70 mm, Height 54 mm Operating Temperature: -20°C to +50°C Service Life: Approx. 5,000 hours Compliance: RoHS, REACH, WEEE directives Country of Origin: Germany