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Series 143 bases and brackets-The Series 143 bases have been designed for the ORS 142 optical smoke switch and the TDS 247 thermodifferential switch. The K 143-S and K 143-K brackets are suitable for mounting the smoke switch on the lintel or as a cantilever arm, in accordance with the implementation regulations of the German Institute for Building Technology (DIBt). Each base is supplied with a magnet for activating the line monitoring in the ORS 142.-Mounting type Surface-mounted-Colour white-Height 33 mm-Diameter 80 mm
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