In this inverted LC siren model, the siren motor is attached to the top of the siren head. 
This reverses the turbine. Its direction of rotation becomes clockwise (LC sirens, like the other LM, DS types, are anti-clockwise (see scheme and photo below).
An "umbrella" plate protects the motor from bad weather.

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Our LCi sirens have been designed for maritime areas, to reduce the effects of saline air on the motor shaft.

Scheme of a Inversed LC Siren : LCi 

Clockwise rotation of the inversed LC siren : LCi

Anti-clockwise direction of rotation of a classical LC siren

PAKITA Electromechanical warning sirens to alert and protect people to natural, technologic or nuclear risks, weather disasters, floodings, tornadoes, fires, explosions, terrorism, terrorist attacks. Civilian protection, civil defense, Home land defense, curfew, Seveso disasters, Moteurs FOX, France/USA.