FHF Ex-proof Signalling Hooter mHP 11

The FHF mHP 11 Ex delivers a powerful audible warning signal for hazardous areas where explosive atmospheres may be present. Designed for Zone 1 and Zone 2 applications, it provides reliable alarm and warning signalling in industrial facilities, chemical plants, oil & gas installations, and other dangerous environments.

Furthermore, the mHP 11 Ex produces a sound output of approximately 108 dB(A), ensuring alarm signals remain clearly audible in demanding operating conditions. The hooter uses a powerful non-polarised electromagnetic drive with an adjustable striker that impacts the diaphragm 100 to 120 times per second, creating a distinctive warning tone that quickly attracts attention.

In addition, the hooter is available with common industrial supply voltages, making integration into existing alarm systems straightforward. The DC version also includes an electronic circuit breaker, providing additional protection and enhancing operational reliability.

Built for dangerous area use, the mHP 11 Ex combines robust construction with certified explosion protection, making it suitable for both indoor and outdoor installations where dependable audible signalling is essential.

Key Features

• Signalling hooter for hazardous areas
• Designed for Zone 1 and Zone 2 explosive atmospheres
• Sound output of approximately 108 dB(A)
• Powerful non-polarised electromagnetic drive
• Adjustable striker mechanism
• Distinctive and highly audible warning signal
• Available with common industrial supply voltages
• DC version includes an electronic circuit breaker
• Compact and robust construction
• Suitable for industrial warning and alarm applications

Certifications & Protection

• Ingress Protection: IP54
• Protection Class: II
• Protection Type: II 2 G Ex e mb IIC T5 Gb