Mircom Technologies RL-401B Relay Board

Product Description

The MIRCOM TECHNOLOGIES RL-401B is a relay board designed for use in intercom and building communication systems. Relay boards of this type provide switching control by opening or closing electrical circuits in response to system signals, enabling integration between intercom panels and secondary devices such as door strikes, access control hardware, or annunciators. The RL-401B is sold as a single unit and is typically installed by low-voltage technicians or licensed electricians working on intercom infrastructure in commercial or residential buildings.

This relay board is suited for intercom accessory applications where auxiliary switching capability is required. It functions as a support component within a broader intercom system, expanding the control options available at the panel. Installation typically occurs during new system builds or when upgrading an existing intercom setup to add door release or other switched-output functions.

Key Features

• Relay switching function supports auxiliary device integration in intercom systems
• Sold as a single unit for individual replacement or system expansion
• Compact board form factor designed for panel or enclosure mounting
• Intercom accessory category for straightforward system compatibility identification

Compatibility

Designed as an OEM-style relay board accessory for intercom systems requiring auxiliary switching outputs. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation should be performed by a qualified low-voltage technician or licensed electrician in accordance with applicable NEC requirements. De-energize the intercom system and disconnect power before handling or mounting the relay board. Secure all wiring connections per the system manufacturer's wiring diagram. Do not apply power to the board until all connections are verified and the enclosure is properly closed.