The voice alarm loudspeaker is specially designed and can be

 used in buildings where the performance of dialog evacuation broadcast system has many strict requirements. LBC 3086 / 41 is designed for voice alarm system. Basic function the LBC 3086 / 41 speaker unit is a 6 W, dual cone speaker with a built-in circular metal waveguide mask. A 100 V matching transformer is mounted on the back. The exquisite appearance and natural ral white coating make the loudspeaker perfect for any indoor occasion. The speaker has built-in protection function. This can ensure that the protection of the circuit will not cause damage in case of a fire. In this way, the integrity of the system is maintained, thus ensuring that speakers in other locations can still communicate information to people in a timely manner. The loudspeaker is equipped with a ceramic junction box, a temperature fuse and a heat-resistant high-temperature conductor. In addition, it can be equipped with an optional fire shield to enhance the protection of cable terminals. Certificate and accreditation all Bosch loudspeakers meet IEC 268-5 power handling capacity (PHC) standard and can operate continuously for 100 hours at rated power. In addition, Bosch has conducted simulated acoustic feedback exposure (SAFE) tests to ensure that they can withstand twice the rated power in a short period of time. This ensures high reliability of loudspeakers in extreme conditions, improves customer satisfaction, extends service life, and significantly reduces the probability of failure or performance degradation. Safety in accordance with en 60065 * emergency in accordance with BS 5839 ￣ 8 / * en 54 ￣ 24 / en 60849 * waterproof and dustproof in accordance with en 60529 ￣ IP32 standard notes * only used in combination with LBC 3081 / 02 fire hood regional certification European CE cpd Polish cnbop installation / configuration installation loudspeakers can be quickly and easily installed in the mounting holes on the ceiling. Separate mounting rings with three built-in spring locking clips for ceiling and wallboard thicknesses of 9 to 25 mm hold the speakers in place quickly. These locking clips come with protective rubber to prevent damage to the soft ceiling material. The round template that comes with the speaker is used to mark the 196 mm (7.7 in) diameter mounting hole. The loudspeaker device is fixed in the mounting ring through a bayonet connector. Junction box loudspeakers are equipped with T-junction boxes with screw connectors for loop wiring. The four primary coil connectors on the matching transformer allow the user to select rated full power, half power, quarter power, or eighth power in 3 dB increments. In case of fire in LBC 3081 / 02 fire hood assembly, the flame may spread through the loudspeaker mounting holes in the ceiling throughout the building. In order to prevent the flame from passing through the speaker into the mounting hole, the ceiling loudspeaker can be installed with steel fire cover (LBC 3081 / 02).

Sales telephone (same number of wechat): 13428785305 QQ: 2461903042