FHF Motor Driven Siren F3
- Alarm and warning sirens
- Signalling for critical situations
- Very high volume
- With protection cover for outdoor use
- Different sizes with 110 up to 123 dB(A)
The sirens are used as alarm, warning or signalling devices. Thanks to their characteristic siren wail, they generate an unmistakable and penetrating alarm. The high volume and its 360° directivity guarantee that a large range is attained. The different siren sizes and models open up a broad range of applications, including signalling for critical situations. Used with the protection cover available as optional accessory, the sirens are suitable for outdoor applications.
The housings are made of aluminium die cast and coated in light grey with weatherproof varnish. The protection cover for the sirens F0 and FI is made of weatherresistant plastic. The other models comprise a protection cover made of sheet steel coated with weatherproof varnish. When using a protection cover, the motor conforms to ingress protection IP 44, while the siren housing conforms with IP 22.
All sirens are designed for short-time operation S 2-15 minutes according to VDE 0530, Part 1. The power supply connection of Sirens F0, FI and FII is realized with an M16 cable gland, types FIIa/FIIIb use an M20 cable gland.