Product Specification Sheet APS612

Rev. 07/2013

SF119/4B Emergency Call Switch for AlphaStatus™ system

This Specsheet is for a product which is discontinued. Please contact us for alternative products.
Architects' And Engineers' Specifications

The Emergency Call switch(es) shall be Alpha Communications® model SF119/4B or approved equal with pull cord operated switch, mounted on a durable ABS plastic faceplate marked "EMERGENCY". Signaling for assistance shall only require a short pull in any direction on the 6' nylon cord. Canceling the call shall be possible only at the point of origin. Unit shall mount on single-gang electric "gem" box or plaster ring.

Typically, the Emergency Call switch(es) may be used with 'stand-alone' low-voltage emergency systems, or with the CM800, DS100, AlphaEcall™ and/or AlphaStatus™ series systems.

Contractor shall observe all local and national electrical and building codes.


The Alpha Communications® SF119/4B Emergency Switch features a rugged, long-life, positive-acting switch mounted on a durable ABS plastic faceplate. Signaling an emergency requires just a short pull on the 6' long nylon cord, in any direction. The signal cannot be canceled except at the point of origin. It is primarily designed to be used with the AlphaStatus™ room status system, but can be used for other low-voltage applications as well.

The SF119/4B provides four separate circuits to operate 4 separate signaling devices, such as a remote annunciator lamp, and a corridor dome lamp, a corridor zone lamp, or other similar type application.

The SF119/4B features a rugged, long-life, positive-acting switch mounted on a flame retardant type ABS plastic faceplate marked "EMERGENCY".

If a 'call placed' or 'call assurance' capability is required, we recommend that you use our SF118 series pull cords, which have a built-in Red L.E.D. 'call placed' indicator.

Wiring Requirements
Refer to system wiring diagram for more complete wiring information. These switches are low-voltage Class II type and should only be used for low-voltage indoor applications. They are not suitable for wet environments.

Dimensions: Height: 4.50" (114mm) (less cord)
Width: 2.75" (70mm)
Depth: 1.50" (38mm) (into wall)
Faceplate: White ABS plastic.
Switch: SF119/4B - 2PDT
Pigtail wire leads (4 sets of 2)
Mounting: Standard single-gang electrical box
Marking: "EMERGENCY" in Black Letters 
Cord Length: 6 foot long (can be shortened in the field), made of durable Nylon
Alpha Communications
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Due to continuous product improvement, all colors, sizes, materials, finishes and specifications are subject to change without notice.