Bfb624e, Mounting options, Specifications: 6.engineering specifications – BeStar BFB624E User Manual
Page 3: Warning, Sound pressure level at 1m 24v, Rated voltage 24v

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Date
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BFB624E
Bell
8.Mounting options:
1.LOOSEN NON-LOSEABLE SCREW
REMOVE GONG
Sound pressure level
at 1m 24V
DC
The alarm indicating appliance shall be AMSECO model or equivalent device. The Bell shall be
listed for Indoor and Outdoor under UL Standard and shall be approved for fire protective
service. The typical dB output shall be 90~105dB. The signaling device shall operate on 24VDC
from a non-coded regulated DC supply or full-wave rectified, unfiltered supply. The signaling
device shall be designed to produce a dB signal output of 90~95 with continuously applied
minimum voltage. The signaling device shall be capable of mounting to a 4"X 4"X
1-1/2"standard back box.
Conductor Size (AWG), Length and capacity should betaken into consideration prior to
design and installation of these products. Particularly in retrofit installation.
7.Specifications:
6.Engineering Specifications:
Gong
Size
6"
Max.15mA
Rated current
at 24V
DC
Rated voltage
24V
BFB624E
5. Warning
Operating voltage
Min 90dB
18~28V
程久生
郭敏