Sdc 491-GL4 Replacement Glass Break Plates 4-pack

Product Description

The SDC - SECURITY DOOR CONTROLS 491-GL4 is a four-piece set of replacement glass break plates designed for use with SDC access pull station assemblies. These plates serve as the breakable element in a pull station, allowing authorized personnel to activate a door release or alarm by applying direct pressure to the glass. The 491-GL4 is sold as a set of four individual plates per unit of measure, making it practical for facilities that cycle through plates during regular testing cycles or after activation events. Installation and stocking of these plates is handled by security integrators, access control technicians, and facilities maintenance personnel.

These replacement glass plates are suited for commercial and institutional facilities where SDC 491-series access pull stations are already installed. Typical applications include egress door control systems in office buildings, healthcare facilities, schools, and other occupancies requiring compliant manual-release hardware. The plates are used to restore a pull station to service after the glass has been broken during an activation or a scheduled functional test.

Key Features

• Set of 4 replacement glass break plates per package
• Designed specifically for SDC 491-series access pull stations
• Allows quick restoration of pull station to operational status after activation
• Supports routine testing programs without sourcing individual replacement components
• OEM-matched fit eliminates need for field modification

Compatibility

Designed as OEM-style replacement glass plates for SDC 491-series access pull stations. Consult the SDC product manual or installation documentation to confirm fitment with your specific pull station model before ordering.

Installation Notes

Replacement of glass break plates should be performed by a qualified access control or security systems technician. Before servicing the pull station, follow facility lockout and notification procedures to avoid unintended door release or alarm activation. Refer to the manufacturer documentation and any applicable local fire or life safety codes governing manual-release hardware maintenance. Do not substitute non-OEM glass plates, as improper fit may affect activation force and code compliance.