Specification:

MCB stands for manual call box. Manual fire alarm activation is done by using a call point. A fire alarm pull station is an active fire protection device. Usually wall mounted, that, when activated, initiates an alarm on a fire alarm system. In its simplest from, the user activates the alarm by pulling the handle down, which completes a circuit and locks the in the activated position. sending an alarm to the fire alarm control panels. The type MS and ABS series are compatible with all conventional fire control system whereas the type MR and MA can be additionally used with Gas Suppression Control systems as a manual gas release and are extended to be used as a manual gas abort point.

MCB-MS Mechanical Details: