About Kahlenberg UK

Kahlenberg UK Ltd is the European distributor for Kahlenberg Industries, Inc. providing full European support and local stock for Kahlenberg marine and industrial air horns, sound signals, controllers, air compressors and the company's other products.

Please contact us for further assistance at or on +44 (0)1635 35353

Sound signal legal requirements

IMO COLREGs bookWhile countries across Europe will have local laws that apply to ship and boat navigation, there is a common requirement worldwide for all leisure, commercial and military vessels to conform to the IMO International Regulations for Preventing Collisions at Sea. As Steve Austin, Senior Policy Lead at the UK Maritime & Coastguard Agency (MCA) explains: "The COLREGs apply to all vessels, there is no differentiation between coded and non-coded vessels. Should the whistles prove not to conform then they will need to be modified or changed."

"Whistles should conform to the performance in COLREGs, Appendix III and the appropriate parts of IEC 60945 to EN60945 which deal with the marine operating environment."

All Kahlenberg products meet or exceed these requirements. Many other new and currently installed sound signals are non-compliant and might be breaching maritime law and invalidating insurance cover.

KPH-130C Triton Electric Piston Horns

Kahlenberg KPH-130C Triton Electric Piston HornThe Kahlenberg KPH-130C Triton Electric Piston Horn is electrically powered and IMO certified for vessels over 75m (246ft) and over 200m (656ft) in length.

The KPH-130C is ideal for situations where it is preferable not to arrange a remote power supply and the Triton can be specified to cover a range of power options. Kahlenberg UK stocks both a 380V three-phase 50Hz model and a 460V three-phase 60Hz version for rapid deployment anywhere in Europe. Both utilise 230V for the control voltage.

The fundamental frequency is 130Hz and the KPH-130C Triton Electric Piston Horn has an audible range of 2nm. SPL is 147dBA at 1m.

It uses a high strength aluminium bell and supporting frame, an aluminium crankcase and a stainless steel cylinder and fasteners. The KPH-130C is self-draining and it uses a motor rated to IP56 and insulation Class F with an anti-condensation strip heater. The crankcase and piston assembly is oil-free and also heated.

The dimensions are 1018mm x 635mm x 844mm (40in x 25in x 33in) and net weight is 100kg (220lb).

The KPH-130C Triton Electric Piston Horn is Alodine treated, primed and enamel coated.

Listen to the KPH-130C Triton Electric Piston Horn

KPH-130C Triton Electric Piston Horn downloads

Kahlenberg KPH-130C Triton Electric Piston Horn technical information (PDF 204Kb)

Further information

Call Kahlenberg UK now on +44 (0)1635 35353 or email