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FIRE PRODUCTS
STI STOPPER ® DOME
DESCRIPTION
You’ve heard of the Astrodome and Metrodome. Now meet
the toughest dome of them all—the Stopper Dome. This
super tough cover with advanced features is designed to
provide maximum protection for the smaller
horn/speaker/strobe signal units of the new generation of
fire protection systems. It is molded of clear, thick
polycarbonate material and available in a variety of depths
for flush, surface mounted or retrofit applications. Also
available is an appliance mounting plate that eliminates the
need for an electrical outlet box, as well as a gasket for
weather resistant applications. In all cases, mounting screws
and anchors are included. The STI-1229 is NEMA 4X Rated.
MODELS AVAILABLE
STI-1215 Stopper Dome for Horn/Speaker/Strobe,
flush mount
STI-1217 Stopper Dome for Horn/Speaker/Strobe
with open backbox
STI-1219 Stopper Dome for Horn/Speaker/Strobe
with enclosed backbox
STI-1225 Stopper Dome for Strobe only, flush mount
STI-1227 Stopper Dome for Strobe only with open
backbox
STI-1229 Stopper Dome for Strobe only with
enclosed backbox - NEMA 4X
STI-1229-HAZ Stopper Dome for Strobe only with
enclosed backbox - NEMA 4X hazardous
locations
STI-1212 Spacer Kit
SUB-123 Gasket Kit includes three gaskets and
mounting hardware
FEATURES
• They help prevent accidental and intentional
damage or vandalism.
• Lifetime guarantee against breakage in normal use.
• Easy access for service.
• Various backbox and frames are available to
accommodate special applications.
• UV-stabilized which helps against discoloration.
• Polycarbonate rated -40˚F to 120˚F (-40˚C to 49˚C).
STI-1215/17/19
STI-1225/27
ADA
Compliant
STI-1217
STI-1227
STI-1229
NEMA 4X
ADA
Compliant
STI-1229-HAZ
HAZARD
NEMA 4X
ADA
Compliant
STI-1215
STI-1225
STI-1229
• NEMA 4X Rating (STI-1229 series only).
• See chart for light and sound loss information (see
page 17).
• Gasket Kit available for extreme conditions.
• Listed for use with ADA Compliant devices.
Hazardous Features for STI-1229-HAZ
• Dust tight (Class II Div. 2 Group F and G).
• All Class III locations.