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40mm UL CE DC 24V, Buzzer Unit, Silver
- Re-engineered, completely enclosed sound module, maintains substantial water and dust protection while producing loud, omni-directional sound. (LR4: 85d)
- DIP switches inside for changing alarm patterns
- A modular, “Twist and Lock”, design to easily customize and field configure LED units and sound modules.
- A sleek, smooth form factor and a rugged body construction for performance in harsh environments.
LR4-BU
Inside of LR Buzzer Unit
LR Series Line Up
Untitled Document
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Operating Ambient Temperature
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-20℃ - +50℃
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Operating Humidity Range
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90% RH or less, no condensation
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Buzzer Sound
/ Typical Frequency
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No. 1 Rapid intermittent beep / 3378Hz
No. 2 Continuous beep sound / 3378Hz
No. 3 Rapid Hi-Lo / 2016Hz & 3012Hz
No. 4 Sweep sound / 1000Hz-4032Hz
*Depending on DIP Switch Settings Refer to the 4.Buzzer Pattern Set-up
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Sound Pressure Level
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LR4 Typ. 85dB (at 1m)
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Sound Reduction*
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ab. -10dB reduction
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Outer Dimension
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Width: 40mm
Height: 53.5mm
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Conformity Standards
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- UL 508, CSA-C22.2 No.14
- RoHS Directive (EN 50581)
- EMC Directive (EN 61000-6-4, EN 61000-6-2)
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DOWNLOAD
LR_Specifications_Buzzer Unit (En).pdf
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| Accessories |
SZP-090U
1/2" NPT adaptor for LR4 and LR5. Aluminum, silver.
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SZP-003W
Surface Mount pole bracket, 2 Screws, off-white
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SZL-001
Wall mount L bracket, silver
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SZQ-001W
Folding Bracket for LR Series, Off-white
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SZW-001W
Surface Mount Bracket
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SZP-003K
Surface Mount pole bracket, 2 Screws, Black
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LR4-E-Y
40mm LED Unit for LR Signal Tower, Amber
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LR4-E-C
40mm LED Unit for LR Signal Tower, White
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LR4-E-R
40mm LED Unit for LR Signal Tower, Red
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LR4-E-G
40mm LED Unit for LR Signal Tower, Green
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