This MARCO PW2 marine signal horn in brass with compressor is model PW2-BN in a black-painted finish for 12 V DC. The electro-pneumatic signal horn is intended for maritime acoustic signaling on vessels in the 12–20 m length class, including recreational boats as well as commercial and work vessels such as fishing boats.
The horn delivers a sound level of over 120 dB, measured as 1/3 octave at a distance of 1 meter, and has a frequency of 315 Hz. It is classified according to COLREG 1972 and IMO Class IV and is type-approved by RINA. Additional documented approvals include Lloyd’s Register MCA, Bureau Veritas, BSH, NMMA, and NMMA ABYC A-23.
The horn bell is made of brass and has a black-painted surface. The mouth diameter is 200 mm, and the specified length is 460 mm. The electric compressor and mounting hardware are included, so the horn and compressor are supplied as a complete system.
The 12 V variant has a maximum current draw of 25 A and must be protected with a correctly dimensioned 25 A fuse. The system uses a compressed air connection of Ø8/6 mm, corresponding to 8 mm outer and 6 mm inner diameter. The signal horn is designed for discontinuous activation and must not be used for continuous operation.
The permitted temperature range is −25 °C to +60 °C, and the maximum relative humidity is 90 %. The product must be stored in a dry place. The net weight is 4.9 kg.
The model code is PW2-BN, and the manufacturer part number is 15000612. The documented 12 V spare compressor has part number R5000033, while the protective cover for the Ø200 mm horn has part number R5000006.
Key featuresElectro-pneumatic marine signal horn for 12 V DC
For vessels in the 12–20 m length class
Black-painted brass horn with Ø200 mm mouth
Electric compressor and mounting hardware included
Sound level over 120 dB at 1 m
Frequency of 315 Hz
COLREG 1972 and IMO Class IV
RINA type-approved
Maximum current draw and fuse: 25 A
Intended for discontinuous operation
