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Whelen Weather Resistant Sirens
The Whelen WPA Series Weather Resistant Sirens are designed for specialty emergency and public-safety vehicles that need reliable audible warning in locations exposed to weather, moisture, vibration, and other demanding environmental conditions. The system is particularly well suited for motorcycles, ATVs, marine applications, and other open-cab or exposed vehicle installations where a conventional interior siren control head may not be appropriate.
At the center of the system is the WPA112 100-watt siren amplifier, which operates one 100-watt siren speaker. Standard siren functions include Wail, Yelp, Piercer, and Airhorn, while hands-free operation allows the operator to cycle through siren tones using the vehicle horn button, manual control, or an auxiliary switch.
Multiple weather-resistant control-head configurations allow the system to be adapted to different vehicle environments. The WPA1 is designed for handlebar or surface mounting, while the WPA2 provides a flush-mount solution for marine-style installations. The larger WPA3 control heads include weather-resistant switches and a microphone connection and are available in either bail-mount or flush-mount configurations.
Public Address override is available across all siren functions, giving operators the ability to provide voice instructions when needed. With its compact amplifier, rugged molded construction, flexible mounting choices, and dedicated weather-resistant controls, the WPA Series provides a practical audible-warning solution for specialty vehicles that operate outside the protected environment of a conventional passenger compartment.
100-watt siren amplifier
Supports one 100-watt speaker
Standard siren tones:
Wail
Yelp
Piercer
Airhorn
Hands-free siren operation
Horn-button tone cycling
Manual and auxiliary-switch control
Public Address override on all functions
Current product family includes:
WPA112 — 100-watt siren amplifier
WPA1 — weather-resistant handlebar / surface-mount control head
WPA2 — weather-resistant flush-mount control head
WPA3BM — weather-resistant control head with microphone jack and bail mount
WPA3FM — weather-resistant control head with microphone jack and flush mount
Mounting options:
Surface mount
Handlebar mount
Bail mount
Flush mount
20' interconnect cable included with applicable configurations
Black molded housing designed to resist environmental damage
Voltage:
WPA1 / WPA2 — 10–32 VDC
WPA3BM / WPA3FM — 12.8 VDC
Listed control-head current: approximately 0.5 A peak
WPA1 / WPA2 dimensions:
4.25" W
1.70" H
2.00" D
WPA3BM / WPA3FM dimensions:
7.12" W
3.63" H
4.12" D
The Whelen WPA Series Weather Resistant Sirens are designed for specialty emergency and public-safety vehicles that need reliable audible warning in locations exposed to weather, moisture, vibration, and other demanding environmental conditions. The system is particularly well suited for motorcycles, ATVs, marine applications, and other open-cab or exposed vehicle installations where a conventional interior siren control head may not be appropriate.
At the center of the system is the WPA112 100-watt siren amplifier, which operates one 100-watt siren speaker. Standard siren functions include Wail, Yelp, Piercer, and Airhorn, while hands-free operation allows the operator to cycle through siren tones using the vehicle horn button, manual control, or an auxiliary switch.
Multiple weather-resistant control-head configurations allow the system to be adapted to different vehicle environments. The WPA1 is designed for handlebar or surface mounting, while the WPA2 provides a flush-mount solution for marine-style installations. The larger WPA3 control heads include weather-resistant switches and a microphone connection and are available in either bail-mount or flush-mount configurations.
Public Address override is available across all siren functions, giving operators the ability to provide voice instructions when needed. With its compact amplifier, rugged molded construction, flexible mounting choices, and dedicated weather-resistant controls, the WPA Series provides a practical audible-warning solution for specialty vehicles that operate outside the protected environment of a conventional passenger compartment.
100-watt siren amplifier
Supports one 100-watt speaker
Standard siren tones:
Wail
Yelp
Piercer
Airhorn
Hands-free siren operation
Horn-button tone cycling
Manual and auxiliary-switch control
Public Address override on all functions
Current product family includes:
WPA112 — 100-watt siren amplifier
WPA1 — weather-resistant handlebar / surface-mount control head
WPA2 — weather-resistant flush-mount control head
WPA3BM — weather-resistant control head with microphone jack and bail mount
WPA3FM — weather-resistant control head with microphone jack and flush mount
Mounting options:
Surface mount
Handlebar mount
Bail mount
Flush mount
20' interconnect cable included with applicable configurations
Black molded housing designed to resist environmental damage
Voltage:
WPA1 / WPA2 — 10–32 VDC
WPA3BM / WPA3FM — 12.8 VDC
Listed control-head current: approximately 0.5 A peak
WPA1 / WPA2 dimensions:
4.25" W
1.70" H
2.00" D
WPA3BM / WPA3FM dimensions:
7.12" W
3.63" H
4.12" D

