Bosch F.01U.269.034 Datasheet

Communications Systems | LBC 3430/03 Bidirectional Sound Projector

LBC 3430/03 Bidirectional Sound Projector

www.boschsecurity.com

u Excellent speech and music reproduction

u Ceiling and/or wall mounting

u Robust aluminum extrusion enclosure

u Water and dust protected to IP 55

u EN 54 24 certified

The LBC 3430/03 is a 12 W bidirectional sound projector intended for speech and music reproduction in indoor and outdoor applications. The two loudspeakers facing in opposite directions are ideally suited to applications such as subway tunnels, long corridors and shopping arcades. The sturdy, aluminum enclosure is finished in the color white. It has provisions for cable loop-through connection and inside mounting of a lineor loudspeakersupervision board. The sound projector is suitable for use in voice alarm systems.

Functions

Voice alarm loudspeakers are specifically designed for use in buildings where performance of systems for verbal communication announcements is governed by regulations. The LBC 3430/03 is designed for use in voice alarm systems and is compliant with British Standard BS 5839 8 and EN 60849.

The loudspeaker has built-in protection to secure that, in the event of a fire; damage to the loudspeaker does not result in failure of the circuit to which it is connected. In this way, system integrity is maintained; ensuring loudspeakers in other areas can still be used

to inform people of the situation. The loudspeaker has a ceramic terminal block, thermal fuse and heat resistant, high-temperature wiring.

The sound projector is constructed from extruded aluminum and finished in white. The front-grills and bracket are made from aluminum to increase corrosion resistance.

Certifications and approvals

Quality assurance

All Bosch loudspeakers are designed to withstand operating at their rated power for 100 hours in accordance with IEC 268-5 Power Handling Capacity (PHC) standards. Bosch has also developed the Simulated Acoustical Feedback Exposure (SAFE) test to demonstrate that they can withstand two times their rated power for short durations. This ensures improved reliability under extreme conditions, leading to higher customer satisfaction, longer operating life, and lessons the chance of failure or performance deterioration.

2 | LBC 3430/03 Bidirectional Sound Projector

Safety		Acc. to EN 60065
Emergency		Acc. to EN 54 24 / BS 5839 8 /
		EN 60849
Water and dust protection		Acc. to IEC 60529, IP 55
Region	Certification
Europe	CE
	CPD

Installation/configuration notes

Mounting

The sound projector can be mounted to the ceiling or wall by means of two screws. The connection cable is fed out through an ABS cable gland (PG13.5) in the base of the mounting bracket. The wires can be terminated on the inside ceramic screw terminal block.

For loop through connection, the cover plate is fitted with a second hole (covered as standard supplied).

Power Setting

The loudspeaker includes a transformer for both 70 V and 100 V with taps on the primary winding for different power settings.

The required power radiation (in 3 dB steps) can easily be selected via a rotary vari tap switch, located close to the screw terminal block.

The sound projector has an provision for inside mounting of the optional line-/loudspeaker- supervision board.

		186 (7.32)
(8.07)		146 (5.75)
205
		5.5 (0.22)
	157 (6.18)	125 (4.92)
	175 (6.89)

Dimensions in mm/(in)

1	2
		4
	3
	4
5
		4
POS.	POWER
	70V	100V
1	12W	NC
2	6W	12W
3	3W	6W
4	1.5W	3W
5	0.75W	1.5W

Circuit diagram

dB SPL
110
100
90
80
70
60
10	100	1000	10000	100000
				Frequency (Hz)

Frequency response

	350	0	10
340		5		20
300				60
290				70
280				80
270				90
260				100
250				110
240				120
				130
200			170	160
	190
		180
125	250		500	1000

Polar diagram