Data Sheet for Product
s Industry, Inc. 
Building Technologies Division 
Mounting Diagram 
(Shown In Inches) 
Mounting Options 
Technical Data 
SEFH Series: Speakers Only       SEFH-MC Series: Speaker-Strobes 
UL and  ULC Listed Models and Ratings 
Model* 
Operating 
Voltage 
(VRMS) 
dBA at 10 Feet 
(Rated Watts) 
Anechoic dBA 
(Per CAN /  ULC-S541-07) 
1/8 
1/4 
1/2 
1 
2 
1/8 
1/4 
1/2 
1 
2 
SEFH 
25/70 
72 
75 
78 
81 
83 
74 
77 
80 
83 
85 
SEFH-C 
25/70 
72 
75 
78 
81 
82 
73 
76 
79 
82 
85 
* All models available in red or white. 
ULC Directional Characteristics 
25V / 
70V 
-3dBA 
+/- 19 degrees horizontal; +/- 35 degrees vertical 
-6dBA 
+/- 40 degrees horizontal; +/- 45 degrees vertical 
UL and  ULC Listed Models and Ratings 
Model* 
Operating 
Voltage 
(VRMS) 
dBA at 10 Feet 
(Rated Watts) 
Anechoic dBA 
(Per CAN /  ULC-S541-07) 
1/8 
1/4 
1/2 
1 
2 
1/8 
1/4 
1/2 
1 
2 
SEFH-MC 
25/70 
71 
75 
78 
81 
83 
73 
76 
79 
82 
85 
SEFH-HMC 
25/70 
71 
75 
78 
81 
83 
73 
76 
79 
82 
85 
SEFH-MC-CW 
25/70 
74 
77 
80 
82 
85 
74 
77 
80 
82 
85 
SEH-HMC-CW 
25/70 
74 
77 
80 
82 
85 
74 
77 
80 
82 
85 
* All models available in red or white. 
ULC Directional Characteristics 
25V / 
70V 
-3dBA 
+/- 33 degrees horizontal; +/- 18 degrees vertical 
-6dBA 
+/- 41 degrees horizontal; +/- 31 degrees vertical 
SEFH-MC Series: Ceiling-Mount Strobes Only  SEFH-HMC Series: Ceiling-Mount Strobes Only
Current Ratings (AMPs) 
MAXIMUM RMS Current – Per  UL and  ULC 
Input Voltage Range 
Operating 
Voltage 
(Special Application) 
15cd 
30cd 
75cd 
95cd 
DC 
16.0 – 33.0VRMS 
@ 24 VDC 
0.069 
0.111 
0.200 
0.264 
FWR 
16.0 – 33.0VRMS 
@ 24 VDC 
0.117 
0.180 
0.297 
0.398 
Current Ratings (AMPs) 
MAXIMUM RMS Current – Per  UL and  ULC 
Input Voltage Range 
Operating 
Voltage 
(Special Application) 
115cd 
177cd 
DC 
16.0 – 33.0VRMS 
@ 24 VDC 
0.318 
0.445 
FWR 
16.0 – 33.0VRMS 
@ 24 VDC 
0.482 
0.683 
Note: Backbox is compatible with wire mold 
and conduit mountings. 
Holes are for single-gang, double-gang, 
4” sq., 3-1/2” and 4” octagon or round 
backboxes. 




