Siemens (MSI-20B) Dual Action Pull Station 500-893081



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Siemens dual action addressable pull station

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Siemens pull station MSI-20B  500-893081

The Siemens MSI-20B dual action pull stations are constructed of a durable molded polycarbonate material which is matte finished in red with raised white lettering.  The housing accommodates a pulldown lever which, when operated, locks in position indicating the manual fire alarm box has been activated.  The pull down lever remains down and locked until the manual fire alarm box is reset.  The manual fire alarm box is reset only by opening the hinged housing cover with an allen key and then closing and locking the cover.

The MSI-20B manual fire alarm boxes operates with the MXL, IXL/ICON-1 and XL3 control panels.

Order yours today, and if you should have any questions regarding this or any life safety products, contact the Life Safety Consultants team at (888) 557-0558 or email us at

Additional information

Weight1 lbs
Dimensions8 × 8 × 3 in


Part Type

Dual Action, Manual, Pull Station


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