Siemens MS-51C Manual Pull Station is constructed of durable molded polycarbonate material, matte finish in red with raised lettering in white. The housing for the Siemens MS-51C single-action box accommodates a ‘pull-down’ lever; which ─ when operated ─ locks in position after releasing a spring-loaded contact switch. Restoring the system to normal can only be accomplish by opening the cover of the hinged housing with an Allen key; then closing/locking its cover.
The housing for the double-action box ─ in addition to the single-action box ─ incorporates a ‘push-in’ tab. This tab must initially be operate, in order to permit access to the ‘pull-down’ lever. The body of the manual box shall be hinge to a backplate assembly to which it is lock with an Allen head screw. Resetting the box after operating shall require opening the box momentarily, and then locking the body to the backplate.
The single-action box, which shall be of the non-code type, shall consist of a molded housing fitted with a ‘pull-down’ lever; which ─ when operated ─ locks in position after releasing a spring-loaded contact switch to activate the alarm circuit.
Features / Specifications
- Durable plastic design
- Shock and vibration resistant
- Activation visibly noticeable
- Optional contact arrangements
- No break rods necessary
- Surface or semi-flush installation
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