alarm bell - Autronica Fire and Security - #1

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116-P-BBR25/CE, 2006-02-20 Protecting life, environment and property... Features • Low current consumption • No adjustment • High sound level • IP 42 • Simple installation Applications/Description The alarm bell BBR-25 is a larger bell for installation in corridors and large rooms. The bell has a sound output of 95 dBA at 1 metre. No adjustment of the bell is required. Low current consumption. Principle Centrifugal bell, driven by a DC-motor. Note! Delivered with built-in series diode. The alarm line is monitored with reversed polarity. The monitoring resistor must be connected across terminals on the bell farthest from the panel. Technical specifications Consist of Base plate Gong Weight 1,7 kg Materials: Gong Base plate Red steel Black polycarbonate Working voltage, nominal 18-30 V DC Current consumption, nominal 28 mA Sound output 95 dBa / 1 m Degree of protection IP 42 Working temperature -10°C to +55°C Humidity Max. 90 % R.H. Maintenance None Service Replace if faulty Part number Description 116-BBR-25 Alarm bell 20 cm Alarm bell BBR-25