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    SECO-LARM SS-090 Series — Tubular Key Lock Switches Specifications

    September 08, 2026 2 min read

    Specification sheet for the SECO-LARM SS-090 Series Tubular Key Lock Switches.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Specification sheet for the SECO-LARM SS-090 Series Tubular Key Lock Switches — a family of pick-resistant, weather-resistant key switches (SS-090, SS-090-1H0, SS-095) plus the SS-090KN spare/replacement keys.

    Models

    Model Function
    SS-090 Shunt ON/OFF, 2 terminals, SPST
    SS-090-1H0 Shunt ON/OFF, 2 terminals, SPST
    SS-095 Momentary ON, shunt OFF, 2 terminals, SPST
    SS-090KN Spare/replacement keys

    Features

    • Patented "see-saw" design assures reliable, automatically self-adjusted contact at all times.
    • Patented "pick-proof" construction stops lock picking.
    • Chrome-plated zinc-alloy housing for durability.
    • Silver-plated contacts with anti-sulfurating treatment.
    • Silicone coating on contacts for resistance to water, steam, heat, and toxic chemicals.
    • Fiber-bakelite base highly resistant to heat.
    • Round terminals allow either solder or crimp connections.

    Specifications

    Model SS-090 SS-090-1H0 SS-095
    Operation Maintained ON/OFF Maintained ON/OFF Maintained OFF, springs back from ON position
    Key removal ON and OFF position OFF position only OFF position only
    Keyhole / ON-OFF position OFF (N.O.) at 0°/60°/30° keyway; ON (N.C.) rotated position — see product diagram for exact angle per model
    Contact rating 2A @ 12VDC

    Dimensions

    Body diameter 7/8" (22mm), depth 7/8" (22mm), mounting bushing 3/8" (9mm) with an installation hole diameter of 11/16" (18mm); shaft diameter 3/4" (19mm), overall extended length 1-3/4" (45mm).

    Accessories

    • SS-199Q — Slimline plate with 3/4" (19mm) "D" hole.
    • SS-299Q — Single-gang plate with 3/4" (19mm) "D" hole.

    Ordering Information (Key Codes)

    Each switch is available pre-keyed to one of ten standard key codes (1300–1310, where "X" denotes key #1310). SS-090 uses the "-2Hx" suffix, SS-095 uses "-1Hx", and SS-090-1H0 is only available at key code 1300. Matching replacement keys are ordered as SS-090KN-0 through SS-090KN-X. Contact SECO-LARM or your distributor for a specific key-code part number.

    Warranty

    SECO-LARM's policy is one of continual development; specifications and prices are subject to change without notice. SECO-LARM is not responsible for misprints.

    SECO-LARM U.S.A., Inc. — 16842 Millikan Avenue, Irvine, CA 92606 | (949) 261-2999 / (800) 662-0800 | www.seco-larm.com