background image

P84589 D 

Sheet 1 of 6 

 

273 

Branchport 

Avenue            

Thank you for using our products.

 

Long Branch, N.J.  07740

NS 

(800) 

 

631-2148              INSTALLATION 

INSTRUCTIONS 

www.wheelockinc.com 

           E50-241575W 

SPEAKER 

STROBES 

 

Use this product according to this instruction manual.  Please keep this instruction manual for future reference. 

 

GENERAL: 

Wheelock’s E50 Speaker Strobes are UL Listed under Standard 1971 for Signaling Devices for the Hearing Impaired and UL 
Standard 1480 for Speaker Appliances.  They are designed for multiple power requirements with high dBA output at each power tap.  
All models offer a choice of field selectable taps, 1/8W to 2W, for either 25.0VRMS or 70.0VRMS audio systems.  The design 
incorporates a high efficiency speaker for maximum output at minimum power across a frequency range of 400Hz to 4000Hz, and 
features a sealed back construction for extra protection and improved audibility.  The Speaker Strobes can provide non-synchronized 
strobe operation when connected directly to a Fire Alarm Control Panel (FACP), or provide synchronized strobe operation when used 
in conjunction with a Sync Module (SM), Dual Sync Module (DSM), or Wheelock’s Power Supplies, PS-12/24-8MP and PS-12/24-
8CP.  The E50-241575W wall mounted strobes are listed at 15 candela under UL Standard 1971 and meet 75 candela intensity on axis 
with low current draw.  All models are UL Listed for 

indoor use only

 and 

wall mounting only

 with the backboxes specified in these 

instructions (see Mounting Options). 

 

NOTE:

  All 

CAUTIONS

 and 

WARNINGS

 are identified by the symbol 

.  All warnings are printed in bold capital letters. 

 

CAUTION:  

The speaker strobe appliance is a fire alarm device - do not paint.

 

 

WARNING:  PLEASE READ THESE INSTRUCTIONS CAREFULLY.  FAILURE TO COMPLY WITH ANY OF THE 

FOLLOWING INSTRUCTIONS, CAUTIONS AND WARNINGS COULD RESULT IN IMPROPER APPLICATION, 
INSTALLATION AND/OR OPERATION OF THESE PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD 
RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS. 

 

SPECIFICATIONS: 

 

Table 1:  UL Listed Models and Ratings 

 Speaker 

Strobe  

Model Voltage 

(VRMS) 

dBA at 10 Feet 

(Rated Watts) 

Regulated 

Voltage 

(VDC/VRMS) 

Voltage  

Range 

(VDC/VRMS) 

 

Candela 

(cd) 

 

Mounting 

Options 

 

 

1/8 1/4 1/2  1  2 

 

 

 

 

E50-241575W 

25/70 

77.0 79.5 82.5 85.0 88.0 

24 

16-33.0 

15* 

A, 

*  1575W models are UL Listed at 15cd and meet 75cd on axis. 

NOTES:   

1.

 

Strobes will produce 1 flash per second over the “Regulated Voltage” range.    

2.

 

All models are UL Listed for indoor use with a temperature range of +32ºF to +120ºF  (0ºC to +49ºC) and maximum 
humidity of 85% RH.    

3.

 

dBA is rated per UL Standard 1480 for Speaker Appliances.  Frequency range of speakers is 400-4000Hz. 

4.

 

For UL applications these appliances were tested to the operating voltage limits of 16-33 volts using filtered (DC) or 
unfiltered full-wave-rectified (FWR).  Do not apply 80% and 110% of these voltage values for system operation.

 

5.

 

Check the minimum and maximum output of the power supply and standby battery and subtract the voltage drop from the 
circuit wiring resistance to determine the applied voltage to the strobes.

 

 

Table 2:  UL Current Rating for Strobe Only 

Maximum RMS Current (AMPS) 

UL Voltage 

15/75cd 

DC 16-33VDC 0.090 
FWR 16-33VRMS 0.145 

 

NOTE: 

The maximum wire impedence between strobes shall not exceed 35 OHMS.  The maximum number of strobes on a single 

notification appliance circuit shall not exceed 47. 

CAUTION:

  

Speaker

 

Strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off. 

 

Copyright 2004 Wheelock, Inc.  All rights reserved

 

Reviews: