STI STI-1230 Stopper II without Horn with Spacer Fire Label

Overview

The STI-1230 is a fire-labeled spacer component for the Stopper II door strike family. This accessory installs between the strike housing and door frame to accommodate specific door thickness or frame-depth requirements in fire-rated or standard door openings. Use this when baseline Stopper II strike geometry does not align with your actual frame pocket depth — a common constraint in retrofit installations or where door thickness varies across a facility.

Compatibility

The STI-1230 spacer integrates with STI Stopper II strike models. Verify your existing or planned strike assembly before ordering — spacer compatibility depends on the specific Stopper II variant in your strike family (e.g., surface-mounted, recessed, or mortise configurations). Confirm strike model number against this spacer to ensure proper fit and function.

Installation Notes

The fire label on this component indicates it meets fire-safety certification standards for use in fire-rated door assemblies. When installing, position the spacer between the strike body and door frame as specified in your strike assembly documentation. Ensure all fasteners are torqued to manufacturer spec and that the spacer does not interfere with strike armature travel or latch function. Fire-labeled components must remain in place and unmodified to maintain door assembly fire rating.

STI Stopper II® without Horn with Spacer, Custom Label

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STI Stopper II® with Horn and Clear Spacer Fire Label - STI-1130 — Add to Cart The item has been added

STI

SKU: STI-1130

STI Stopper II® with Horn and Clear Spacer Fire Label - STI-1130

Operates on 28VDC input, aligning directly with standard access control power supplies.
Integrated horn and clear spacer deliver audible and visual egress alerts in one unit.
Fire-rated label supports life safety code compliance on emergency egress routes.

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STI Stopper II® without Horn Flush Mount Fire Label - STI-1200 — Add to Cart The item has been added

STI

SKU: STI-1200

STI Stopper II® without Horn Flush Mount Fire Label - STI-1200

NEMA 3R neoprene gasket seal blocks water ingress in washdown environments.
Flush-mount design integrates 24VDC electromagnetic or electromechanical strikes cleanly.
Lifetime breakage warranty reduces long-term replacement risk in high-traffic installs.

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STI Stopper II® with Horn and Spacer - STI-1155NR — Add to Cart The item has been added

STI

SKU: STI-1155NR

STI Stopper II® with Horn and Spacer - STI-1155NR

UL-listed for indoor and outdoor deployment on standard manual pull stations.
Integrated 9VDC piezo horn alerts when cover is lifted, powered by included battery.
Included spacer handles variable mounting depths; no-label surface accepts custom ID.

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STI STI-3150NR Weather Stopper® without Horn with Spacer, No Label — Add to Cart The item has been added

STI

SKU: STI-3150NR

STI Weather Stopper® without Horn with Spacer No - STI-3150NR

Polycarbonate enclosure blocks accidental pull station activations without restricting emergency access.
No-horn design avoids audio duplication where the panel or separate module already handles alerting.
Closed-cell gasket seals the frame across –40°F to 250°F, supporting indoor and outdoor environments.

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