BOSCH LBB4441/00 Loudspeaker Supervision Board

BOSCH LBB4441/00 Loudspeaker Supervision Board

The board monitors are the integrity of a loudspeaker. It is professionally designed capable of working together with the LBB 4440/00 Supervision Control Board. The speaker status is communicated to the LBB 4440/00 with the use of the existing loudspeaker cable. The LBB 4441/00 is made mounted inside the loudspeaker casing and is capable to communicate the status of the loudspeaker to the LBB 4440/00 Supervision Control Board with the use of the existing loudspeaker cable. The board is possible detecting and reporting loudspeaker faults within 300s, line faults within 100s.

Interconnections
• Two 30 cm flying leads
• Two faston connectors

The board must be connected after the ceramic terminal block along with the thermal fuse. In case of a fire, the thermal fuse will blow and disconnect the board from the loudspeaker line. The trip point of the thermal fuse that is connected to the ceramic block is lower than the melting point of the solder on the board intended for preventing short-circuits in the supervision board and the loudspeaker line. During the time the loudspeaker does not contain a ceramic terminal block along with a thermal fuse, use an LBC 1256/00 EVAC Connection Adapter.

Mechanical

Dimensions (H x W x D) 78 x 60 x 22 mm (3.0 x 2.3 x 0.8 in)
Weight 70 g (2.4 ounces)
Mounting Internally in the loudspeaker
An optional mounting bracket,
LBB 4446/00 is available

Environmental

Operating temperature -5 ºC to +55 ºC (+23 ºF to +131 ºF)
Storage temperature -20 ºC to +70 ºC (-4 ºF to +158 ºF)
Humidity 15% to 90%
Air pressure 600 to 1100 hPa