Denco supplier catalog / Accessory reference

RC SM-226L-3: Magnetic Contact, Overhead Door Mount

The supplier identifies an overhead-door magnetic contact for open- and closed-circuit operation.

US source scopeUpdated 2026-09-13Independent Anderson reference

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Denco catalog number: RC SM-226L-3. Keep the complete supplier number, including prefixes and suffixes. This identifies the supplier catalog listing.

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Denco accessory source: RC SM-226L-3Product detail title and Description list; explicit table cells where recorded · checked 2026-09-12 · Denco

Denco accessory source: RC SM-226L-3Product detail title and Description list; explicit table cells where recorded · checked 2026-09-12 · Denco

Values apply to the exact identifier and scope in the cited source.
Supplier identification fact	The supplier identifies an overhead-door magnetic contact for open- and closed-circuit operation. Denco accessory source: RC SM-226L-3Product detail title and Description list · checked 2026-09-12 · Denco
Supplier identification fact	The stated operation gap is 2-3/4 inches. Denco accessory source: RC SM-226L-3Product detail title and Description list · checked 2026-09-12 · Denco
Supplier identification fact	It has 24-inch leads enclosed in stainless-steel cable and an L-shaped bracket. Denco accessory source: RC SM-226L-3Product detail title and Description list · checked 2026-09-12 · Denco
Scope and source limitation	The source does not label the gap as a guaranteed maximum under all mounting conditions. No contact-current rating, precise contact arrangement or alarm-panel pairing is supplied. Denco accessory source: RC SM-226L-3Product detail title and Description list; explicit table cells where recorded · checked 2026-09-12 · Denco

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Sources & scope

Denco accessory source: RC SM-226L-3Denco · US · checked 2026-09-12

Anderson prepared this reference from the listed evidence. Source statements are not an Anderson installation inspection or independent product test. Official documents stay on their publisher’s website.

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