Description
THORN SECURITY
MINERVA ALARM RELAY
24V DC COIL
2X25A CONTACTS
ART NO: 660910
The Thorn Security Minerva Alarm Relay is a dedicated switching component designed for use within the Minerva fire alarm and detection system. Operating on a 24V DC coil with dual 25A contacts, this relay provides reliable electrical isolation and signal switching between alarm detection circuits and downstream devices such as sounders, suppression systems, or auxiliary equipment. As a core element of a vessel’s fire alarm system, it plays a critical role in ensuring that alarm signals are accurately transmitted and acted upon, directly supporting onboard life safety and regulatory compliance.
Key Features
✓ Operates on a 24V DC coil, compatible with the standard power supply architecture of the Minerva fire alarm system.
✓ Dual 25A contacts provide robust switching capacity for connecting ancillary alarm devices, control circuits, or suppression triggers — technical ratings as stated in original product data; further parameters subject to confirmation.
✓ Designed specifically for integration within Thorn Security Minerva fire detection panels and associated control equipment; compatibility with other configurations should be confirmed against system drawings.
✓ Suitable for installation in fire alarm panel enclosures or auxiliary relay modules onboard vessels where SOLAS-compliant fire detection infrastructure is required; installation context subject to onboard configuration.
✓ A direct replacement component for maintenance or repair of existing Minerva fire alarm installations, helping restore system integrity without full panel replacement.
Marine Applications
✓ Cargo vessels and bulk carriers requiring SOLAS-compliant fixed fire detection and alarm systems throughout accommodation, machinery, and cargo spaces.
✓ Passenger ferries and cruise ships where zoned fire alarm panels must reliably trigger multiple alarm outputs and suppression interfaces simultaneously.
✓ Offshore platforms and support vessels fitted with Thorn Security Minerva fire detection systems requiring relay module maintenance or upgrade.
✓ Naval auxiliaries and government vessels operating fire alarm systems that demand certified, manufacturer-specified components for system integrity.
✓ Tankers and gas carriers where fire alarm relay switching must meet strict safety standards for hazardous area detection circuit management.
Why Marine Engineers Choose
Marine engineers specify the Thorn Security Minerva Alarm Relay because it is a manufacturer-matched component that maintains the electrical and functional integrity of the Minerva fire alarm system. Using the correct relay ensures alarm signal continuity, minimises the risk of false trips or missed activations, and keeps the fire detection installation aligned with its original approval basis.
Ideal For
Suitable for cargo ships, tankers, passenger vessels, offshore support vessels, naval auxiliaries, and any commercial or specialised vessel operating a Thorn Security Minerva fire alarm system requiring relay replacement or system maintenance.
Technical Support & Compliance
Technical assistance is available to support remote troubleshooting, onboard diagnosis, component testing, commissioning verification, and retrofit or upgrade integration for Minerva fire alarm systems. Guidance on compatibility, panel interface requirements, and installation is provided subject to confirmation against the vessel’s specific system configuration. To confirm suitability, buyers are advised to share nameplate photographs, the part number (Art No. 660910 where visible), system model and software version, relevant panel drawings or wiring diagrams, and vessel name or IMO number where applicable. All compatibility and compliance assessments are subject to confirmation based on the information provided.




