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P/N 3102475-EN • REV 001 • ISS 09NOV17 

 

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Figure 5: Mounting diagram 

 

Maintenance and testing 

Caution: 

Equipment damage hazard. To maintain the required agency 

listings, do not change factory-applied finishes. 

This unit is not serviceable or repairable. Should the unit fail to 
operate, contact the supplier for a replacement. 

Perform a visual and operational inspection in accordance with 
applicable codes and standards or as directed by the local authority 
having jurisdiction. 

Specifications 

 
Operating voltage 

24 VDC or 24 VFWR, nominal 

Current 
 Operating 
 Supervisory 

 
See Table 1 
DC = 1.46 mA, FWR = 2.15 mA 

Default settings 
 Output 

level 

 Output 

signal 

 
High dBA 
Temporal  

Sound level output 
 ULC 
 UL 

See Table 2 
See Table 3 

Resonant frequency 

3.2 kHz 

Audible directional 
characteristics 

See Table 4 
 

Temporal pattern 

0.5 s on, 0.5 s off, 0.5 s on, 0.5 s off, 0.5 s 
on, 1.5 s off, repeat cycle 

Compatible detectors 

All KI and KIR Series detectors  

Compatible electrical 
boxes 

AB4G-SB surface box for audible base; 
4 in. square × 2-1/2 in. (64 mm) deep box; 
3-1/2 in. octagonal × 2-1/2 in. (64 mm) deep 
box; Standard European 100 mm² box 

Wire size 

12 to 18 AWG (1.0 to 4.0 mm²) 
Sizes 16 and 18 AWG (1.0 and 1.5 mm²) are 
preferred 

Screw torque 
 Base 

mounting 

 Terminal 

 
18 Ibf-in (2.0 N·m) max. 
12 Ibf-in (1.4 N·m) max. 

Base diameter 

6.8 in. (173 mm) 

Base height from box 

0.8 in. (21 mm) 

Maximum distance 
from ceiling (wall 
mount) 

12 in. (305 mm) 

Operating environment
 Temperature 
 Relative 

humidity 

 
32 to 120°F (0 to 49°C) 
0 to 93% noncondensing 

Storage temperature 

4 to 140°F (

20 to 60°C) 

 

Table 1: Operating current in mA (RMS) 

Voltage Low 

dBA 

High 

dBA 

16 VDC 

17 

28 

24 VDC 

24 

41 

33 VDC 

31 

52 

16 VFWR 

41 

48 

24 VFWR 

51 

60 

33 VFWR 

60 

66 

VDC = Volts direct current, regulated and filtered 
VFWR = Volts full wave rectified 
 

Table 2: Sound pressure level per CAN/ULC-S525 

Voltage High 

dBA 

Low 

dBA 

Reg. 24 VDC 

93 

89 

Reg. 24 VFWR 

96 

92 

 

Table 3: Sound level output (dBA) 

Signal Voltage 

Low 

dBA 

High 

dBA 

Reverberant room per UL 464 [1] 

Steady 16 

VDC 

75.5  81.7 

 

24 VDC 

79.5 

84.5 

 

33 VDC 

81.8 

86.5 

Reverberant room per UL 268 and FM [1] 

Steady 16 

VDC 

81.5  87.7 

 

24 VDC 

85.5 

90.5 

 

33 VDC 

87.8 

92.5 

[1] For UL 464 and UL 268 applications, low dBA settings are for 
private mode only 
 

Table 4: Audible directional characteristics [1] 

Angle (degrees) 

Change in output sound pressure level 

90 (ref) 

0 dBA 

75 and 105 

3 dBA 

65 and 110 

6 dBA 

[1] Measured in a ULC anechoic room. Horizontal and vertical axes 
reflect the same pattern. 
 

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