Seco-Larm ENFORCER SM-226L-3Q / SM-226R-3Q — Overhead Door Magnetic Contact Product Info

Product info for the Seco-Larm ENFORCER SM-226L-3Q / SM-226R-3Q — wide-gap magnetic contacts designed for overhead (garage) door mounting.

Overview

• SM-226L-3Q: N.O./N.C. contacts with ABS plastic magnet housing and "L" bracket magnet mounting.
• SM-226R-3Q: N.O./N.C. contacts with round-backed aluminum magnet housing.

Alarm Circuit

Three-wire N.O./N.C. contact works with either closed- or open-circuit alarm systems. Connect the green (N.O.) and black (common) wires for closed circuit systems, or the red (N.C.) and black wires for open circuit systems.

Reed Switch

Gold under-plating with deactivated rhodium outer-plating. SECO-LARM's unique rhodium plating undergoes a special oxygen treatment to deactivate the surface, eliminating absorption of organic impurities, polymer growth during operation, and the possibility of contact freezing.

Switch Housing

Weatherproof die-cast aluminum, constructed for surface-mounting on the garage floor and able to withstand heavy vehicle pressure without damage. The switch is safely enclosed in an epoxy compound, with a 24" flexible armored cable protecting the switch wiring.

Magnet & Mounting

An extra-strength Alnico 5 magnet allows a 2-3/4" operating gap.

• SM-226L-3Q: magnet housed in a high-impact weatherproof ABS plastic case, mounted on the garage door with an "L"-shaped bracket that minimizes the effect of steel doors on magnets.
• SM-226R-3Q: magnet enclosed in epoxy inside a round-backed aluminum housing mounted directly to the garage door — the shape discourages use as a foothold and offers no projecting edges to catch when the door is raised.

Specifications

Note: products with a model number ending in "Q" (or bearing a round green "Q" sticker) are RoHS compliant.