Federal Signal’s popular PA640 siren is the most reliable, most versatile totally enclosed siren/light controller.  PA640 sirens provide 100-watt output and will meet Class A and SAE J1849 requirements for sound when paired with any Federal Signal high-output speaker.


Wail, Yelp, Priority or Hi-Lo, Manual Peak-and-Hold, and Air Horn, are all standard tones and can be enabled by a heavy-duty five position rotary switch. Every siren comes with its own mounting bracket, hard-wired microphone and is electronically short circuit and reverse polarity protected.


This compact siren is packed with standard features, built-in versatility and product reliability that simply can’t be matched.


  • Combined light/siren controls with PA and microphone
  • 100-Watt SAE J1849 and Class A output
  • Internal programmable siren functions
  • Four-position progressive slide switch
  • Six backlit and rubberized relay push-button switches
  • Scrolling TAP II intersection clearing feature



Approvals: SAE J1849 / July -02 compliant
CCR (CAC) Title 13 Class A
Input Voltage: 11 VDC to 16 VDC
Standby Current: 0mA (ignition off)
150mA (ignition on)
Operating Current: 9.25A (@ 13.6V with 11-ohm load, amplifier in wail)
Operating Temperature: -30˚ C to +65˚ C
Voltage Output (approx.): 64V peak-to-peak
Total Current Rating for Relay: 80A Combined Total – all relays
Slide Switch Outputs: Mode 1 (30A)
Mode 2 (30A)
Mode 3 (30A), (40A combined total)
Push-button Switch Outputs: 20A each
Dim. (W x L x D): 6.8 in x 3.0 in x 7.8 in (17.3 cm x 7.6 cm x 19.7 cm)



Below are the available bulk discount rates for each individual item when you purchase a certain amount

  • Buy 6 or above and pay only $394.95 each

Siren and Light Control

SKU: SR-640000
  • Merchandise will be entitled to the benefit of any manufacturer's warranty and Adamson Industries will assist you in the process. Adamson Industries makes no expressed or implied warranties including the implied warranties of merchantability of fitness for a particular purpose with respect to any goods and/or services sold to you. Please contact either Adamson Industries or the manufacturer of the product for more information.