Bosch introduces a full range of volume controls and
program selectors to provide a complete public
address solution.
Functions
Operation
Public address systems are often used for both
announcements and background music distribution.
Volume controls can be used to adjust the level locally.
In addition to volume control, program selectors can
also be installed to select five different programs
locally. In the event of an (emergency) announcement,
the built-in relay ensures that the message is
broadcast at a preset level, independent of the local
volume setting.
The volume controls come in three versions according
to power rating: 12 W, 36 W, and 100 W. The total load
of the loudspeakers connected to a volume control
may not exceed the rated power.
Each of the three versions is also available in two
versions. One is a power-saving, 4-wire volume
override (/10 models), where the override relay is
activated during an emergency call. The other is a
failsafe, 4-wire volume override (/20 models), where
the override relay is deactivated during an emergency
call.
The design and color are unobtrusive in any interior.
Ease of installation, operation and reliability is
optimized in the design.
Interconnections
Screw connections
Certifications and approvals
Technical specifications
Ordering information
LBC 1400/10 Volume Control
Volume control 12 W, MK installation type, built-in
24 VDC override relay, power-save version,
5 attenuation steps of 3 dB and off, white RAL 9010.
Order number LBC1400/10
LBC 1400/20 Volume Control
Volume control 12 W, MK installation type, built-in
24 VDC override relay, failsafe version, 5 attenuation
steps of 3 dB and off, white RAL 9010.
Order number LBC1400/20
LBC 1410/10 Volume Control
Volume control 36 W, MK installation type, built-in
24 VDC override relay, power-save version,
8 attenuation steps of 3 dB and off, white RAL 9010.
Order number LBC1410/10
LBC 1410/20 Volume Control
Volume control 36 W, MK installation type, built-in
24 VDC override relay, failsafe version, 8 attenuation
steps of 3 dB and off, white RAL 9010.
Order number LBC1410/20
LBC 1420/10 Volume Control
Volume control 100 W, MKD/E2 installation type, builtin 24 VDC override relay, power-save version,
10 attenuation steps of 2 dB and off, white RAL 9010,
supplied with surface mounting box.
Order number LBC1420/10
LBC 1420/20 Volume Control
Volume control 100 W, MKD/E2 installation type, builtin 24 VDC override relay, failsafe version,
10 attenuation steps of 2 dB and off, white RAL 9010,
supplied with surface mounting box.
Order number LBC1420/20
LBC 1430/10 Program Selector
Program selector, MK installation type, 5 channel
selection, white RAL 9010.
Order number LBC1430/10
Accessories
LM1‑SMB‑MK
Surface mounting box for volume controls
LBC1400/10, LBC1400/20, LBC1410/10, LBC1410/20,
and Program Selector LBC1430/10, white RAL 9010.
Order number LM1-SMB-MK
