Sigcom SG-42SK2-SC Single-Action Pull Station

The Sigcom SG-42SK2-SC Single-Action Pull Station is a manually operated fire alarm initiating device in Signal Communications Corporation’s SG-42 Series. The station uses a single SPST normally open contact and is reset by opening the unit with its key and returning the handle to its normal position.

Sigcom manufactures the SG-42 Series from a rugged, lightweight die-cast metal alloy for durability in commercial, institutional, industrial, and other fire alarm applications.

Product Functions

• Provides manual fire alarm initiation
• Single-action PULL operation
• Uses one SPST normally open alarm contact
• Latches in the activated position
• Requires key access for reset
• Provides screw-terminal field connections
• Supports AC and DC alarm circuits
• Uses gold-plated alarm contacts
• Designed for fire alarm systems
• Supports surface or compatible back-box mounting
• Meets ADA pull-force requirements
• Provides highly visible red fire alarm identification
• Allows optional break-rod installation
• Designed for indoor fire alarm applications with compatible mounting hardware

Single-Action Operation

The SG-42SK2-SC is a single-action pull station.

To activate the station, the user simply pulls the front handle marked PULL downward as far as it will travel. No separate push bar or preliminary action is required.

Once operated, the handle locks in the activated position. Sigcom notes that the activated handle is readily visible from distances of up to approximately 50 feet, providing a clear indication that the station has been operated.

Typical SG-42SK2-SC installation includes:

• Selecting the approved pull station location
• Installing the appropriate electrical or surface back box
• Routing the initiating-device circuit wiring
• Connecting wiring to the screw terminals
• Confirming use of the normally open alarm contact
• Securing the station to the mounting box
• Closing and locking the station
• Restoring fire alarm system operation
• Pulling the handle to verify alarm activation
• Confirming alarm receipt at the control panel
• Opening the station with the reset key
• Returning the PULL handle to normal
• Confirming the fire alarm system restores properly

Installation should follow the current Sigcom documentation and the requirements of the connected fire alarm control system.

Testing & Maintenance

The Sigcom SG-42SK2-SC Single-Action Pull Station provides a rugged and straightforward method of manually initiating a fire alarm. Its die-cast metal housing, SPST normally open gold-plated contact, key-reset mechanism, screw terminals, and ADA-compliant operation make it suitable for a wide range of conventional fire alarm installations.

SG-42SK2-SC Datasheet