Sanshin Electric 3SLH Marine Horn Buzzer

Sanshin Electric 3SLH Marine Watertight Horn Buzzer

The Sanshin Electric 3SLH Marine Horn Buzzer is a high quality rugged signalling and warning unit designed specifically for the harsh environment of commercial marine applications. Sanshin Electric Corporation manufactures this auditory and visual warning system in Japan. The system has a dual action of high decibel horn buzzer and a built in pilot lamp for instant status confirmation. Constructed of premium grade, corrosion resistant aluminium alloy and rated IP44 waterproof, the 3SLH delivers clear, fail-safe signalling aboard commercial ships, cargo ships and offshore platforms where structural reliability is paramount.

Model Details:

• Brand Name: Sanshin Electric Corporation
• Model: 3SLH (Watertight Series)
• Manufacturer Part Number (MPN): 3SLH W.T.
• IMPA Code: 793463
• Product Category: Marine Horns & Sirens

Technical Data

Applications

• Shipboard Machinery Spaces: As an important machinery problem or bilge high-level alarm in noisy marine engine rooms.
• Bridge & Control Room Telegraphs: Auxiliary acoustic repeater for bridge-to-engine room orders and emergency muster indications.
• Watertight bulkhead doors: Audio-visual indication of automatic watertight door or cargo hatch movement is localised.
• Offshore Platforms & Marine Decks: Installed in protected deck areas, marine terminals and oil rigs for localised fire and safety system signalling.
• Industrial Coastal Facilities: Used for dockside warehouses, shipyards and chemical factories where corrosion-proof warning systems are required.

Our Engineer’s Maintenance Guide:

In my years overseeing machinery spaces, secondary signaling systems are often neglected until an emergency strikes. The Sanshin 3SLH is remarkably robust due to its cast aluminum casing, but salt crusting and ambient vibration can still take a toll.

During routine monthly safety checks, ensure that the lens of the pilot lamp is wiped clean of oily film or salt spray. Always verify the integrity of the cable gland sealing ring during periodic inspections; a dried-out or improperly compressed gland is the primary entry point for moisture, which will prematurely ground out your 220V AC or 24V DC coils.