Sdc UR4-8 Universal Relay Board 8 Output

Product Description

The SDC - SECURITY DOOR CONTROLS UR4-8 is an 8-output universal relay board designed for use in access control and security panel systems. It expands the output capacity of a control panel by providing eight individually switched relay outputs, allowing integrators and security technicians to trigger locks, alarms, lighting circuits, or other low-voltage devices from a single board. The UR4-8 is a panel accessory intended for professional installation in commercial and light-industrial access control applications.

The UR4-8 is suited for commercial access control panel installations where additional relay outputs are required beyond the base panel capacity. It is typically mounted inside a control panel enclosure and wired to door hardware, electric strikes, magnetic locks, or alarm notification devices. Security integrators and licensed low-voltage contractors are the primary installers of this relay board.

Key Features

• 8 individual relay outputs for expanded panel switching capacity
• Universal design allows integration with a wide range of access control panel systems
• Panel accessory format supports enclosure-mount installation
• Sold individually as a single unit

Compatibility

Designed as an OEM-style accessory relay expansion board for use with compatible access control panel systems in commercial security installations.

Installation Notes

Installation should be performed by a licensed low-voltage or security systems contractor in accordance with applicable local codes and NEC Article 725 for Class 2 and Class 3 remote-control circuits. De-energize the control panel completely before wiring or mounting the relay board. Verify output load ratings against connected devices before commissioning. Consult the product manual for terminal assignments and configuration details.