HOCHIKI YBN-R/6M ADDRESSABLE RELAY OUTPUT MODULE ESP FIRE ALARM SYSTEM

HOCHIKI YBN-R/6M is a 6-channel addressable relay output module for Hochiki ESP intelligent fire alarm system, suitable for marine and industrial hazardous fire detection control. The relay output module connects to the ESP signal loop, receives instructions from fire alarm control panel and triggers dry contact relay outputs to control fire dampers, emergency shutdown, fire pumps, alarm bells and other safety equipment. The relay output module supports independent control of each channel, and feeds back relay status to fire panel for system diagnosis. The relay output module uses DIP switches to set unique bus address, so the fire panel can identify module location and implement zone fire linkage logic. The relay output module monitors loop communication status and internal hardware faults, and sends fault messages to the main fire control unit.

HOCHIKI YBN-R/6M adopts narrow DIN rail mounting structure, powered by 17.6–28.8V DC fire loop power without extra independent power supply. The fire safety I/O module has LED indicators for loop communication and relay activation status for quick on-site inspection. The fire safety I/O module meets marine fire safety requirements, can withstand vibration, high humidity and temperature fluctuation on board vessels. The fire safety I/O module provides isolated NO/NC relay contacts, avoiding control circuit interference.

HOCHIKI YBN-R/6M is widely installed on cargo ships, tankers and offshore platforms with Hochiki ESP fire alarm systems for fire zone linkage and safety equipment control. The industrial spare part can replace damaged relay modules to restore ESP loop communication and multi-channel relay output rapidly. The industrial spare part matches original mechanical and electrical specifications for direct DIN rail replacement. The industrial spare part has clear part marking for fast identification and stock management. The industrial spare part reduces vessel downtime during fire alarm cabinet overhaul and marine survey inspection.