490 Emergency Door Release Series

491 Emergency Door Release

Break Glass Emergency Exit

The SDC 491 Emergency Door Release Break Glass Station provides immediate unlocking of perimeter doors or interior doors that are equipped with fail-safe electric locks. The 491's built in alarm may be used as a local door annunciator.

The SDC 491 is specifically designed for emergency door release and may influence the approval of an electric locking system. This type of Emergency Door Release may be preferred over a pull station since greater commitment is required to break the glass.

FEATURES

• Aluminum rod Blue housing with easy to read activation instructions avoids confusion with red fire alarm stations.
• The SDC 491 may initiate the release of an individual door or all doors on the same circuit.
• The SDC 491 may be mounted in a 2" deep single gang back box or double gang box with plaster ring cover. The SDC 491 may be surface mounted with a 491-BB surface mount back box.

SPECIFICATIONS

Contacts	2-SPDT 10 Amp Contacts; 1-SPDT for lock release and 1-SPDT auxiliary contact for remote monitoring, CCTV activation or alarm activation
Aluminum Rod	For striking the glass is included. (Not required to break the glass)
Replacement Glass Plates	2 Replacement glass plates included
Dimensions	5.5" H x 3.5" W x 1.375" D

ACCESSORIES

491-GL4 Four Replacement Glass Plates

491-BB

Blue Surface Mount Back Box

Dimensions: 5.25" H x 3.25" W x 1.5" D

1

Break Glass Emergency Door Release with Siren 3V-28VDC, 18mA (2 replacement glass pieces included)

492 Emergency Door Release

Pull Station Emergency Exit

The SDC 492 Emergency Door Release Pull Station provides immediate unlocking of perimeter doors or interior doors that are equipped with fail-safe electric locks. The 492's built in alarm may be used as a local door annunciator.

The SDC 492 is specifically designed for emergency door release and may influence the approval of an electric locking system.

FEATURES

• Blue housing with easy to read activation instructions avoids confusion with red fire alarm stations.
• The SDC 492 may initiate the release of an individual door or all doors on the same circuit.
• The SDC 492 may be mounted in a 2" deep single gang back box or double gang box with plaster ring cover. The SDC 492 may be surface mounted with a 492-BB surface mount back box.

SPECIFICATIONS

MODELS

Contacts	2-SPDT 10 Amp Contacts; 1-SPDT for lock release and 1-SPDT auxiliary contact for remote monitoring, CCTV activation or alarm activation
Replacement Glass Rods	2 Replacement glass rods included
Dimensions	4.75" H x 3.25" W x 1.375" D

ACCESSORIES

492-GL4 Four Replacement Glass Rods

492-BB

Blue Surface Mount Back Box

Dimensions: 4.750" H x 3.125" W x 1.625" D

Pull station emergency door release

with siren 3V-28VDC, 18mA