General
Colour housing	Grey
Housing material	Plastic
Loudness	108 dB(A)
Nominal voltage	230 V
Type of current	AC
Electricity consumption	0,07 A
Temperature range	-20 - +60 °C
Degree of protection (IP)	IP55

The HPW 11 signal horn from FHF is an electromechanical sound emitter for use in industrial and technical installations. It serves as an acoustic warning and call signal and is designed for operation in dry and damp indoor environments as well as outdoors. The device features a robust housing made of impact-resistant thermoplastic (ABS), which withstands mechanical stress and environmental influences. The standard grey housing colour meets common requirements for industrial signal devices.

Applications

The HPW 11 signal horn is suitable for use in production plants, machine controls, safety and alarm systems, as well as in buildings with emergency call or warning systems. The IP55 protection rating ensures protection against dust and splashing water, enabling use outdoors or in damp indoor environments. The operating temperature ranges from -20 °C to +60 °C, ensuring reliable performance even under extreme climatic conditions.

Functions and Equipment in Detail

The device operates with an electromechanical horn system based on a powerful, unpolarized electromagnet. This moves a plunger that strikes the diaphragm between 100 and 120 times per second, generating a clear, loud sound. The sound pressure level is approximately 108 dB(A) at a distance of one metre, ensuring sufficient audibility in large rooms or outdoors. An integrated sound horn ensures directional sound radiation to optimize range and efficiency.

Technology Explained Simply

The signal horn operates at a nominal voltage of 230 V AC, enabling use with standard alternating current power supplies. The current consumption is 0.07 A, representing a low energy consumption value. The AC (alternating current) power type is common for most industrial and commercial applications. The housing made of impact-resistant thermoplastic (ABS) provides mechanical stability and is resistant to mechanical stress such as impact or shock. The IP55 protection rating means the device is dust-tight and protected against splashing water, making it suitable for outdoor use or in damp environments.

Compatibility and Accessories

The HPW 11 signal horn is available in various voltage variants, including DC versions, enabling flexible integration into different power supply systems. A special version with a telephone switching relay is also available, allowing the horn to be integrated into existing telephone or emergency call systems. The mentioned accessory variants are not part of this specific item.

Mounting and Installation

The signal horn is designed for wall or ceiling mounting. Dimensions are a height of 345 mm, width of 140 mm, and depth of 133 mm. Installation requires an electrical connection to a 230 V AC mains supply.

Advantages in Operation

The HPW 11 signal horn is characterized by high sound pressure level, robust construction, and broad applicability. The directional sound radiation via the sound horn ensures targeted warning effect, while the IP55 protection rating ensures reliable operation under various environmental conditions. The low current consumption reduces energy usage, and the operating temperature range of -20 to +60 °C enables flexible use in different climate zones. The device is designed for use in industrial and technical installations where clear acoustic signaling is required.