THORN T280 FIRE ALARM SYSTEM

Complete SEO Marine Technical Blog | SM MARINE SERVICE™

DESCRIPTION

Manufacturer

THORN Security / THORN EMI (Legacy Marine Fire Detection Systems)

Country of Origin

United Kingdom

Product Type

Marine Conventional Fire Alarm Control Panel

Marine Application

Fire detection and alarm monitoring system for ships, offshore platforms, engine rooms, accommodation areas, cargo spaces, and machinery spaces.

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Product Introduction

The THORN T280 Fire Alarm System is a proven marine fire detection control panel designed for reliable fire monitoring onboard commercial vessels. Although many ships have upgraded to addressable fire alarm systems, the T280 remains widely installed on older merchant vessels because of its rugged design, dependable operation, and straightforward maintenance.

The panel shown in your photo is a 32-zone THORN T280 Fire Alarm Control Panel, allowing engineers to quickly identify the exact zone where a fire, detector fault, wiring fault, or system abnormality occurs.

SM MARINE SERVICE™ supplies complete THORN T280 fire alarm systems, replacement panels, electronic boards, zone modules, detector interfaces, spare parts, repair services, and technical support worldwide.

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What is the THORN T280 Fire Alarm System?

The THORN T280 is a conventional multi-zone fire detection panel that continuously supervises detector circuits installed throughout a vessel. Each fire zone can include smoke detectors, heat detectors, flame detectors, manual call points, and alarm sounders.

When a detector activates, the panel immediately identifies the affected zone and triggers audible and visual alarms so the crew can respond quickly.

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Main Features

• 32-zone fire monitoring
• Continuous detector supervision
• Fire Alarm indication
• Fire Alert indication
• Zone Test function
• Zone Isolation function
• Detector fault monitoring
• Power supply supervision
• Sounder wiring supervision
• Main fault indication
• Standby battery monitoring
• Simple operator interface
• Reliable marine-grade construction
• Suitable for SOLAS-compliant fire detection systems

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Main Components

A complete THORN T280 system typically includes:

• Fire Alarm Control Panel
• Zone Interface Cards
• CPU Board
• Display Board
• Power Supply Unit
• Battery Charger
• Alarm Relays
• Sounder Circuits
• Smoke Detectors
• Heat Detectors
• Flame Detectors
• Manual Call Points
• Remote Alarm Units
• Junction Boxes
• Backup Batteries

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Marine Applications

The THORN T280 is commonly installed on:

• Cargo Ships
• Container Ships
• Bulk Carriers
• Oil & Chemical Tankers
• LPG/LNG Carriers
• Offshore Support Vessels
• Passenger Ships
• Fishing Vessels
• Engine Rooms
• Accommodation Areas
• Cargo Holds
• Machinery Spaces

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Common Problems & Troubleshooting

Typical service issues include:

• Zone fault alarms
• Detector loop open circuit
• Short circuit in detector wiring
• Battery failure
• Charger malfunction
• False fire alarms
• Faulty smoke detectors
• Defective heat detectors
• Display board failure
• Relay output problems
• CPU board faults
• Internal power supply issues

Routine inspection and preventive maintenance significantly improve system reliability.

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Maintenance Tips

• Test every fire zone periodically.
• Verify detector sensitivity.
• Inspect detector wiring.
• Test sounders and alarm outputs.
• Check backup battery voltage.
• Clean smoke detectors.
• Replace defective detectors immediately.
• Perform annual functional testing according to class requirements.

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Why Ships Still Use the THORN T280

Many vessels continue operating the THORN T280 because it offers:

• Exceptional reliability
• Easy maintenance
• Proven marine service history
• Stable conventional fire detection
• Readily repairable electronics
• Low maintenance costs
• Long operational life

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Frequently Asked Questions (FAQ)

Can the THORN T280 be repaired?

Yes. Most display boards, CPU boards, power supplies, relay boards, and zone interface modules can be repaired.

Do you supply spare parts?

Yes. SM MARINE SERVICE™ supplies complete systems and spare parts, including control boards, displays, power supplies, relays, detectors, and accessories.

Can you test and calibrate the system?

Yes. We provide functional testing, inspection, repair, and technical support.

Is this panel still available?

Although discontinued by the manufacturer, used and professionally reconditioned units remain available for ships still operating the THORN T280 system.

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Short Product Description

The THORN T280 Fire Alarm System is a dependable marine conventional fire detection panel designed to monitor multiple fire zones and provide rapid warning of fire hazards onboard ships. It remains a trusted solution for many commercial vessels operating worldwide.

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User Manual & Technical Resources

Available documentation includes:

• THORN T280 User Manual
• Installation Manual
• Service Manual
• Wiring Diagram
• Maintenance Manual
• Spare Parts Catalogue
• Troubleshooting Guide
• Zone Configuration Guide
• Technical Specifications

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SM MARINE SERVICE™

SM MARINE SERVICE™ supplies THORN T280 Fire Alarm Systems, control panels, CPU boards, display boards, power supply units, detector modules, spare parts, repair services, calibration, functional testing, and worldwide technical support.

Bangladesh Office
Samir Market, DT Road, Pahartali, Beside CDA Market, Chattogram, Bangladesh

China Warehouse & Support Center
Shanghai, China

Available Supply

• New Equipment
• Used Equipment
• Professionally Reconditioned Equipment

Services

• Worldwide Supply
• Genuine & Compatible Spare Parts
• Repair & Overhaul
• Calibration
• Functional Testing
• Technical Support
• Global Shipping

Website: www.smmarineservice.com

Email: info@smmarineservice.com

WhatsApp: +8801818929292

Marketing Contact: Nazmul Hasan Bhuiyan

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