Bosch LBB 4443/00 Supervision Control Board

Manufacturer: BOSCH

Type: Supervision Control Board

Model: LBB4443/00

Preferred Cable: Single twisted pair, 0.75 … 1.5 mm²

Maximum Length: 1 km (including branches, max. 300 m adjacent to other supervised loudspeaker cables)

Maximum Loop Resistance: 38 ohm

Maximum Inductance: 750 µH

Loudspeaker Voltage: 70 V, 100 V

Minimum Total Loudspeaker Impedance: 50 ohm at 70 kHz

Maximum Capacity: 300 nF

Air Pressure: 600 … 1100 hPa

Operating Temperature: -5 … +55 °C

Weight: 0.07 Kg