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  • SECO-LARM SD-994A-A1AQ/A1SQ — Reversible Electric Door Strikes

    September 08, 2026 1 min read

    Product information sheet for the SECO-LARM SD-994A-A1AQ (asymmetric) and SD-994A-A1SQ (symmetric) reversible electric door strikes for wood doors with cylindrical-door locking systems.

    Full text manual (for reference)

    Product information sheet for the SECO-LARM SD-994A-A1AQ (asymmetric) and SD-994A-A1SQ (symmetric) reversible electric door strikes for wood doors with cylindrical-door locking systems.

    Overview

    These fail-secure electric door strikes are designed for wood doors and can be used with virtually any cylindrical-door locking system. The SD-994A-A1AQ has an asymmetric strike (not centered on the reversible faceplate) while the SD-994A-A1SQ has a symmetric, centered strike. Both are reversible for right- or left-hand doors.

    Features

    • 8~16 VAC/12VDC operating voltage.
    • For use on wood doors.
    • Can be used with virtually any cylindrical-door locking system.
    • Fail-secure operation.
    • US26D chrome faceplate.
    • Miniature lock body for easier installation.
    • Faceplate size: 5 7/8"x1 1/4"x1/8" (150x32x3.2mm).
    • Corrosion-resistant case and moving parts.
    • 1,000-lb (453kg) jaw strength.
    • Tested to 500,000 cycles.
    • Reversible for right- or left-hand doors.
    • Keeper depth: 21/32" (16.8mm); Latch depth: 3/4" (19mm); Strike depth: 1 1/2" (38mm).

    Specifications

    Spec Value
    Model SD-994A-A1AQ / SD-994A-A1SQ
    Operation Fail secure
    Operating voltage 8~16 VAC/12VDC
    Current draw (16VAC / 12VDC) 800mA / 750mA
    Operating temperature 14°~113°F (-10°~45°C)
    Weight 10.3 oz (292g)

    Manufacturer

    SECO-LARM U.S.A., Inc., 16842 Millikan Avenue, Irvine, CA 92606. Phone: (949) 261-2999 / (800) 662-0800.