Apollo 45681-394MAR

The Apollo 45681-394MAR is a Discovery Marine Sounder Visual Indicator Base designed for marine fire detection systems operating under the Discovery protocol. This integrated unit combines a detector mounting base, electronic sounder, red flash visual indicator, and short-circuit isolator, providing redundant audible and visual fire alarm notification for maritime vessels and installations.

Key Features

• Individual control of sounder and visual indicator from control panel
• Electronic bell tone with IMO 1A certification for marine compliance
• Adjustable volume and tone settings selectable from panel
• Red visual flash indicator for visual alarm notification
• Short-circuit isolation capability (SIL2-rated) for system protection
• Magnetic wand commissioning tool for local testing and adjustment
• Choice of 15 evacuation tones meeting international standards

Technical Specifications

• Product Code: 45681-394MAR
• Protocol: Discovery marine-rated system
• Operating Temperature: -20°C to 60°C
• Humidity Range: 0-95% RH
• IP Rating: IP21D (marine environment protection)
• Protocol Voltage: 5-9V peak-to-peak
• Quiescent Current: 350μA @ 24V dc
• Power-Up Time: Less than 1 second

Certifications

• MED Approved for marine use
• Lloyd's Register (LR) certified
• Marine Equipment Directive 2014/90/EU compliant
• UK Marine Equipment Regulations 2016 certified
• IEC 61511 Functional Safety capability assessed
• SIL2 Safety Integrity Level