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  • SECO-LARM ENFORCER Open-Frame Transformers — Specifications

    September 08, 2026 2 min read

    Specification sheet for the SECO-LARM ENFORCER Open-Frame Transformers (ST-UV16/24-W50Q, ST-UV16-W100Q, ST-UVDA-W100Q/W180Q) and matching ENFORCER Power Supply/Chargers.

    Full text manual (for reference)

    Specification sheet for the SECO-LARM ENFORCER Open-Frame Transformers (models ST-UV16-W50Q, ST-UV24-W50Q, ST-UV16-W100Q, ST-UVDA-W100Q, and ST-UVDA-W180Q) and their companion ENFORCER Series Power Supply/Chargers.

    Features

    • Shielded windings to reduce Electromagnetic Interference (EMI)
    • Selectable input voltage
    • Selectable output voltage (ST-UVDA-W100Q and ST-UVDA-W180Q only)
    • UL recognized

    Technical Specifications

    Model Output Voltage Amperage VA Input Voltage
    ST-UV16-W50Q 16VAC 3.12A 50VA 120/240 VAC 50/60Hz
    ST-UV24-W50Q 24VAC 2.08A 50VA 120/240 VAC 50/60Hz
    ST-UV16-W100Q 16VAC 6.25A 100VA 120/240 VAC 50/60Hz
    ST-UVDA-W100Q 24VAC / 28VAC 4.16A / 3.57A 100VA 120/240 VAC 50/60Hz
    ST-UVDA-W180Q 24VAC / 28VAC 7.50A / 6.43A 180VA 120/240 VAC 50/60Hz

    ENFORCER Power Supply/Chargers (companion units)

    These transformers convert low-voltage AC input power to low-voltage DC output power for use with the ENFORCER Series Power Supply/Chargers below:

    • ST-2406-2AQ — 1.5A continuous, 6/12/24 VDC
    • ST-2406-3AQ — 2.5A continuous, 6/12/24 VDC
    • ST-2406-5AQ — 4.0A continuous, 6/12/24 VDC
    • ST-2406-7AQ — 7.0A continuous, 6/12/24 VDC
    • ST-2406-10AQ — 9.0A continuous, 6/12/24 VDC

    Power Supply/Charger Features

    • Regulated and filtered output voltage
    • Short-circuit protection
    • Thermal protection and compensation
    • Built-in backup battery charger
    • Switches to backup battery automatically in case of power loss
    • Fused protection for battery charger
    • 2 LEDs to indicate AC power input and DC power output status
    • Compatible with lead acid or gel-type rechargeable battery
    • Reverse polarity protected

    Transformer Selection Table

    Match the correct transformer to each power supply/charger and desired output voltage:

    Power Supply 6VDC out 12VDC out 24VDC out
    ST-2406-2AQ ST-UV24-W50Q (24VAC/50VA) ST-UV16-W100Q (16VAC/100VA) ST-UV24-W50Q (24VAC/50VA)
    ST-2406-3AQ ST-UV16-W100Q (16VAC/100VA) ST-UVDA-W100Q (24/28VAC/100VA) ST-UVDA-W100Q (24/28VAC/100VA)
    ST-2406-5AQ ST-UVDA-W180Q (24/28VAC/180VA) ST-UV16-W100Q (16VAC/100VA) ST-UVDA-W180Q (24/28VAC/180VA)
    ST-2406-7AQ ST-UVDA-W180Q (24/28VAC/180VA) ST-UVDA-W180Q (24/28VAC/180VA) ST-UVDA-W180Q (24/28VAC/210VA)
    ST-2406-10AQ ST-UVDA-W180Q (24/28VAC/180VA) ST-UVDA-W180Q (24/28VAC/180VA) ST-UVDA-W180Q (28VAC/350VA)

    Manufacturer

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