Data sheet en_us_1937279115
- 1. Communications Systems | LBC 343x/00 Horn Loudspeakers LBC 343x/00 Horn Loudspeakers www.boschsecurity.com u ATEX approved u CENELEC compliant u BASEEFA certified u Glass reinforced polyester with strong, fire retardant properties u Reduced maintenance costs The Bosch LBC 3437/00 and LBC 3438/00 Horn Certifications and Approvals Loudspeakers are specifically designed and approved for installations where explosive gas-air mixtures are All Bosch loudspeakers are designed to withstand likely to be present. They are suitable for use in all gas operating at their rated power for 100 hours in groups including hydrogen. accordance with IEC 268-5 Power Handling Capacity (PHC) standards. Bosch has also developed the System Overview Simulated Acoustical Feedback Exposure (SAFE) test to demonstrate that they can withstand two times The LBC 3437/00 has a power rating of 15 W, the their rated power for short durations. This ensures LBC 3438/00 has 25 W. extra reliability under extreme conditions, leading to Functions higher customer satisfaction, longer operating life, and much less chance of failure or performance The flame paths, flare and body of both loudspeakers deterioration. are constructed from a UV stable glass reinforced polyester (GRP). This strong, fire and corrosion Self-Extinguishing acc. to class UL 94 V1 resistant material offers greater reliability and reduced Water and dust protection acc. to EN 60529, IP 66 and IP 67 maintenance costs. GRP is also chemical resistant and thermally stable, making it ideal for even the harshest ATEX Ex II 2 GD environments. The horns are weather proof, and BASEEFA * EExd II C T5, zones 1 and 2 incorporate stainless steel mounting brackets and (LBC 3437/00) captive cover screws, and a stainless steel sinter, to EExd II C T4, zones 1 and 2 increase their resistance to corrosion. They are (LBC 3438/00) supplied with an EExdIIC gland as standard. Cert. No. BAS00ATEX2097X CENELEC ** EN 50014 EN 50018
- 2. 2 | LBC 343x/00 Horn Loudspeakers * BASEEFA = British Approved Service for Electrical 2 3 7.5 12.5 Equipment in Flammable Atmospheres ** CENELEC = European Committee for 3 4 5.0 6.0 Electrotechnical Standardization 1 3 4.0 4.0 Region Certification 2 4 2.0 2.0 Europe CE 1 4 0.8 1.0 BASEE- Circuit diagram FA Installation/Configuration Notes The horn loudspeakers include a built-in transformer with taps on the primary winding for different power settings. The horn loudspeakers are supplied with a sturdy mounting bracket allowing the sound beam to be accurately directed. The bracket has a ratchet facility to ensure it stays correctly positioned. Dimensions in mm (in) Polar diagram (measured with pink noise) Parts Included Quantit Component y 1 LBC 343x/00 Horn Loudspeaker 1 EExd II C gland Frequency response Technical Specifications Electrical* Product LBC 3437/00 LBC 3438/00 Maximum power 22.5 W 37.5 W Rated power 15/75/5/4/2/0.8 W 25/12.5/6/4/2/1 W SPL at RP / 1 W 112 / 100 dB (SPL) 114 / 100 dB (SPL) (1 kHz, 1 m) Effective frequency 420 Hz to 3.5 kHz 420 Hz to 3.5 kHz range (-10 dB) Transformer Rated Opening angle at 160° / 60° 160° / 60° tappings power 1 kHz / 4 kHz (-6 dB) Comm Phase 15 W 25 W on Rated voltage 100 V 100 V 1 2 15.0 25.0
- 3. 3 | LBC 343x/00 Horn Loudspeakers Rated impedance 667 ohm 400 ohm Connector Screw terminal Screw terminal * Technical performance data acc. to IEC 60268-5 Mechanical Dimensions 271 x 170 mm 271 x 170 mm (L x D max) (10.7 x 6.7 in) (10.7 x 6.7 in) Weight 5 kg (11 lbs) 5 kg (11 lbs) Color Natural black Natural black Cable diameter 7.5 mm to 11.9 mm 7.5 mm to 11.9 mm (0.3 in to 0.5 in) (0.3 in to 0.5 in) Environmental Operating -20 ºC to +55 ºC -20 ºC to +50 ºC temperature (-4 ºF to +131 ºF) (-4 ºF to +122 ºF) Storage -40 ºC to +70 ºC -40 ºC to +70 ºC temperature (-40 ºF to +158 ºF) (-40 ºF to +158 ºF) Relative humidity <95% <95% Ordering Information LBC 3437/00 Horn Loudspeaker 15 W, flameproof Order number LBC3437/00 LBC 3438/00 Horn Loudspeaker 25 W, flameproof Order number LBC3438/00 Represented by: Americas: Europe, Middle East, Africa: Asia-Pacific: Bosch Communications Systems Bosch Security Systems B.V. Robert Bosch (SEA) Pte Ltd 12000 Portland Avenue South P.O. Box 80002 11 Bishan Street 21 Burnsville, Minnesota 55337, USA 5600 JB Eindhoven, The Netherlands Singapore 573943 Phone: +1-800-392-3497 Phone: + 31 40 2577 284 Phone: +65 6571 2600 Fax: +1-800-955-6831 Fax: +31 40 2577 330 Fax: +65 6571 2698 audiosupport@us.bosch.com emea.securitysystems@bosch.com apr.securitysystems@bosch.com www.boschsecurity.com www.boschsecurity.com www.boschsecurity.com © Bosch Security Systems 2012 | Data subject to change without notice 1936630155 | en, V1, 16. Apr 2012