Ship Automation LLP is a trusted global supplier of marine automation, navigation, and control system spares, supporting vessels with genuine equipment and fast worldwide delivery. With deep expertise in bridge systems and engine control solutions, we help ships operate safely and efficiently while minimizing downtime.
We are pleased to announce the successful delivery of the MRC RB-25A1 Relay Box to USA. This supply reflects our commitment to delivering critical marine components that enable seamless communication and accurate command logging onboard.

Maker:MRC
Model: RB-25A1
Description: Relay Box
Condition: Good condition
The MRC RB-25A1 Relay Box is a critical, commercial-grade maritime electrical component designed specifically for integration within Public Address and General Alarm (PA & GA) Systems onboard ocean-going vessels and industrial facilities.
It is built within a rugged, marine-grade protective enclosure. This design withstands continuous vibrations, thermal shifts, and high humidity common in vessel engine rooms and bridge control spaces.
It acts as the safety-critical backbone of a vessel’s Public Address & General Alarm (PA & GA) system. In marine time operations, communication failure during an emergency can be catastrophic, this device ensures life-saving sirens and evacuation commands instantly override routine shipboard audio across all decks.
Its industrial-grade isolation circuitry protects sensitive bridge electronics from high-voltage spikes, while its automatic 24V DC battery failover guarantees the system remains fully operational even during a total ship blackout.
With Ship Automation LLP, quality meets the open ocean—get genuine, sea-tested MRC RB-25A1 Relay Boxes delivered directly to your port of choice.
Get in touch with our experts for professional assistance:
Email: info@shipautomation.com
Discover our wide range of products via link below:
https://www.shipautomation.com/product/mrc-rb-25a1-relay-box/