100 mm

Ex Signaling devicesIS-Mini series LED Blinking LightIS-mB1• very economical visual alarm• certifi ed for use in Ex-Zones 0, 1 and 2!• compact design with a diameter of just 88 mm• blinking light operated via certifi ed zener barriers or galvanic isolators• super-bright LEDs in red, green, blue and yellow/orange• very well suited for fi re alarm systems and direct control due to lowpower consumptionSee pages 242 and 243 for suitable zener barriersr =4 mRange asper EN 54IP 65Protectionsystem+ 60 °C- 40 °COperatingtemperatureElectrical dataIS-mB1Rated voltage24 V DCOperating range16 V – 28 VNominal current consumption 25 mA 11typical for connection to 24 V DC via 28 V / 300 Ω zener barrier. Power must be connected via a zener barrier (max. 28 V DC, 93 mA DC, 0.66 W) or a galvanicisolator, specified by the system certificate (see page 243)Mechanical dataIS-mB1Type of protection EN50020 ‘ia’ inherently safeExplosion protection II 1G EEx ia IIC T41G (Zone 0)Category (area of use)2G (Zone 1)3G (Zone 2)Certificate SIRA 05 ATEX2084XTesting bodySIRAFlash rate can be set to 2 Hz or 1 HzLens colour clear, with red, yellow/amber, blue or green LEDsTemperature class T T4 @ Ta - 40 °C ... + 60 °CStorage temperature - 40 °C … + 70 °CRelative humidity 90 %Protection system according to EN 60529 IP 65Duty cycle 100 %Materiallenspolycarbonate (PC)housing ABS, self-extinguishing UL 94 VO & 5VA, similar RAL 3000 (fl ame red)Connecting terminals 0.5 – 2.5 mm 2Cable entry2 x M20 (disruption prepared)Weight210 g216www.pfannenberg.com