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Addressable electronic sounder flash with isolator. It's powered directly from the loop. Addressable by rotary switches. Sound power up to 97dB @ 1m. With a short circuit isolator. CPR certified in accordance with EN 54-3. 15-32VDC power supply from loop. Power supply with consumption in stand-by 225 microA, with isolator and 14.5 mA at maximum volume. Operating temperature: -25°C to +70°C. Umidità relativa sino a 95%. Degree of protection IP 24, IP 44 or IP 65 depending on the support used. Featuring fast and simple installation and control it is powered by the fire panel via the loop wiring. Control of the device is enabled using on-board switches or via the Opal digital protocol using the control panel. The range is installed simply by a twist fit onto the B501AP base.