12
SUMMARY OF AUDIBLE ALARMS*
Model Min. dB Current Normal Limit
Number Level@10 Ft. Draw@24VDC Per Circuit
BT-F 84.4 288mA 5
BT-SS 74.7 318mA 4
HN-EP 82 65mA 23
HNH-EP 92 350mA 4
U-EC(-W) 68.1 19mA 78
U-EC-MCS(-W)
Chime only 92 19mA 78
15cd Strobe only 82mA 18
30cd Strobe only 107mA 14
75cd Strobe only 182mA 8
110 Strobe only 234mA 6
Chime/15cd Strobe 92 101mA 14
Chime/30cd Strobe 92 126mA 11
Chime/75cd Strobe 92 201mA 7
Chime/110cd Strobe 92 253mA 5
U-HN(-W) 80.4 49mA 30
U-HN-MCS(-W)
Horn only 80.4 49mA 30
15cd Strobe only 82mA 18
30cd Strobe only 107mA 14
75cd Strobe only 182mA 8
110 Strobe only 234mA 6
Horn/15cd Strobe 92 131mA 11
Horn/30cd Strobe 92 156mA 9
Horn/75cd Strobe 92 231mA 6
Horn/110cd Strobe 92 283mA 5
U-HNH(-W) 82.6 70mA 21
U-HNH-MCS(-W)
Horn only 82.6 70mA 21
15cd Strobe only 82mA 18
30cd Strobe only 107mA 14
75cd Strobe only 182mA 8
110 Strobe only 234mA 6
Horn/15cd Strobe 92 152mA 9
Horn/30cd Strobe 92 177mA 8
Horn/75cd Strobe 92 252mA 5
Horn/110cd Strobe 92 304mA 4
U-MH(-W)
Steady 79.2 18mA 83
Temporal 75.9 16mA 93
U-MH-1G(-W)
Steady 79.2 18mA 83
Temporal 75.9 16mA 93
U-MH-MCS(-W)
Horn only 79.2 18mA 83
15cd Strobe only 82mA 18
30cd Strobe only 107mA 14
75cd Strobe only 182mA 8
110 Strobe only 234mA 6
Horn/15cd Strobe 92 100mA 15
Horn/30cd Strobe 92 115mA 13
Horn/75cd Strobe 92 200mA 7
Horn/110cd Strobe 92 252mA 5
U-MHT(-W)
Steady 79.2 18mA 83
Temporal 75.9 16mA 93
U-MHT-MCS(-W)
Horn only 79.2 18mA 83
15cd Strobe only 82mA 18
30cd Strobe only 107mA 14
75cd Strobe only 182mA 8
110 Strobe only 234mA 6
Horn/15cd Strobe 92 100mA 15
Horn/30cd Strobe 92 115mA 13
Horn/75cd Strobe 92 200mA 7
Horn/110cd Strobe 92 252mA 5
Model Min. dB Current Normal Limit
Number Level@10 Ft. Draw@24VDC Per Circuit
U-MMT(-W)
Horn 80.4 53mA 28
Chime 73.9 53mA 28
Bell 74 52mA 28
Sl Whoop 77.8 67mA 22
Temporal 76.2 38mA 39
Siren 78.5 67mA 22
Hi-Lo 78.6 38mA 39
SS Bell 71.1 44mA 34
U-MMT-1G(-W)
Horn 80.4 53mA 28
Chime 73.9 53mA 28
Bell 74 52mA 28
Sl Whoop 77.8 67mA 22
Temporal 76.2 38mA 39
Siren 78.5 67mA 22
Hi-Lo 78.6 38mA 39
SS Bell 71.1 44mA 34
U-MMT-MCS(-W)
Horn only 80.4 53mA 28
Chime only 73.9 53mA 28
Bell only 74 52mA 28
Sl Whoop only 77.8 67mA 22
Temporal only 76.2 38mA 39
Siren only 78.5 67mA 22
Hi-Lo only 78.6 38mA 39
SS Bell only 71.1 44mA 34
15cd Strobe only 82mA 18
30cd Strobe only 107mA 14
75cd Strobe only 182mA 8
110 Strobe only 234mA 6
Horn/15cd Strobe 80.4 135mA 11
Horn/30cd Strobe 80.4 160mA 9
Horn75cd Strobe 80.4 235mA 6
Horn/110 Strobe 80.4 287mA 5
Chime/15cd Strobe 73.9 135mA 11
Chime/30cd Strobe 73.9 160mA 9
Chime75cd Strobe 73.9 235mA 6
Chime/110 Strobe 76.9 287mA 5
Bell/15cd Strobe 74 134mA 11
Bell/30cd Strobe 74 159mA 9
Bell/75cd Strobe 74 234mA 6
Bell/110 Strobe 74 286mA 5
Sl Whoop/15cd Strobe 77.8 149mA 10
Sl Whoop/30cd Strobe 77.8 174mA 8
Sl Whoop/75cd Strobe 77.8 249mA 6
Sl Whoop/110 Strobe 77.8 301mA 4
Temporal/15cd Strobe 76.2 120mA 12
Temporal/30cd Strobe 76.2 145mA 10
Temporal/75cd Strobe 76.2 220mA 6
Temporal/110 Strobe 76.2 272mA 5
Siren/15cd Strobe 78.5 149mA 10
Siren/30cd Strobe 78.5 174mA 8
Siren/75cd Strobe 78.5 249mA 6
Siren/110 Strobe 78.5 301mA 4
Hi-Lo/15cd Strobe 78.6 120mA 12
Hi-Lo/30cd Strobe 78.6 145mA 10
Hi-Lo/75cd Strobe 78.6 220mA 6
Hi-Lo/110 Strobe 78.6 272mA 5
SSBell/15cd Strobe 71.1 126mA 11
SSBell/30cd Strobe 71.1 151mA 9
SSBell/75cd Strobe 71.1 226mA 6
SSBell/110 Strobe 71.1 278mA 5
Section III — Equipment Descriptions and Functions
*When audible alarms other than required bells
are used, they must be accompanied with a
visual fire signal either incorporated in the horn
enclosure or separate strobes.
Any combination of the approved notification
devices can be used, but the combination cannot
be greater than the circuit current of 1.5A.
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