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Aperta Fail Secure Flush Strike Lock - 12VDC

£2199
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Aperta A1SL is a fail secure flush strike lock designed for access control systems on timber, metal and UPVC door frames. The unit sits flush with the door frame surface via a 190mm x 52mm stainless steel faceplate, housing a solenoid-driven latch mechanism that engages when power is applied and releases when power is cut. In fail secure mode, the lock defaults to the locked position during power loss, keeping the door secure until power is restored.

Designed for commercial and residential access control installations where security during power outages is a priority, the A1SL pairs with magnetic card readers, keypads, intercoms and remote-release systems. The flush mount profile minimises projection from the frame, reducing the risk of tampering or forced removal compared to surface-mounted strikes. Installation requires a recessed cutout in the frame edge to house the mechanism behind the faceplate.

The stainless steel faceplate resists corrosion in coastal or high-humidity environments and maintains a clean appearance in high-traffic doorways. The strike operates on 12VDC, drawing minimal current during holding and higher momentary current during the latch release cycle. The 0.3kg weight and compact 190mm x 52mm x 40mm form factor allow the strike to be fitted into standard timber door frames without requiring significant structural reinforcement.

Specification
Product Net Weight (KG) 0.3
Product Gross Weight (KG) 0.32
Outer Gross Weight (KG) 16
Product Length (mm) 190
Product Width (mm) 52
Product Height (mm) 40
Outer Length (mm) 400
Outer Width (mm) 290
Outer Height (mm) 230
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What does fail secure mean?

Fail secure means the lock defaults to the locked position when power is lost. The door remains secure during a power cut and cannot be opened without power being restored or manual override using a key. This contrasts with fail safe locks, which unlock automatically during power loss for fire safety compliance.

What voltage does it require?

The Aperta A1SL operates on 12VDC. It can be powered from a mains-fed 12V power supply or from a battery backup system in installations requiring uninterrupted operation during mains power outages.

What frame types is it compatible with?

The flush strike fits timber, metal and UPVC door frames. Installation requires cutting a recessed pocket into the frame edge to house the mechanism behind the faceplate, so the frame must have sufficient depth and material to support the cutout without weakening the structure.

Can it be paired with a keypad or card reader?

Yes. The strike is designed to integrate with standard access control systems including magnetic card readers, proximity fob readers, keypads, intercoms and remote-release buttons. The control system sends a 12VDC signal to the strike to release the latch when access is granted.

Shipping & Returns

Free worldwide delivery

Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

Returns

30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.

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    Description

    The Aperta A1SL is a fail secure flush strike lock designed for access control systems on timber, metal and UPVC door frames. The unit sits flush with the door frame surface via a 190mm x 52mm stainless steel faceplate, housing a solenoid-driven latch mechanism that engages when power is applied and releases when power is cut. In fail secure mode, the lock defaults to the locked position during power loss, keeping the door secure until power is restored.

    Designed for commercial and residential access control installations where security during power outages is a priority, the A1SL pairs with magnetic card readers, keypads, intercoms and remote-release systems. The flush mount profile minimises projection from the frame, reducing the risk of tampering or forced removal compared to surface-mounted strikes. Installation requires a recessed cutout in the frame edge to house the mechanism behind the faceplate.

    The stainless steel faceplate resists corrosion in coastal or high-humidity environments and maintains a clean appearance in high-traffic doorways. The strike operates on 12VDC, drawing minimal current during holding and higher momentary current during the latch release cycle. The 0.3kg weight and compact 190mm x 52mm x 40mm form factor allow the strike to be fitted into standard timber door frames without requiring significant structural reinforcement.

    Specification
    Product Net Weight (KG) 0.3
    Product Gross Weight (KG) 0.32
    Outer Gross Weight (KG) 16
    Product Length (mm) 190
    Product Width (mm) 52
    Product Height (mm) 40
    Outer Length (mm) 400
    Outer Width (mm) 290
    Outer Height (mm) 230
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What does fail secure mean?

    Fail secure means the lock defaults to the locked position when power is lost. The door remains secure during a power cut and cannot be opened without power being restored or manual override using a key. This contrasts with fail safe locks, which unlock automatically during power loss for fire safety compliance.

    What voltage does it require?

    The Aperta A1SL operates on 12VDC. It can be powered from a mains-fed 12V power supply or from a battery backup system in installations requiring uninterrupted operation during mains power outages.

    What frame types is it compatible with?

    The flush strike fits timber, metal and UPVC door frames. Installation requires cutting a recessed pocket into the frame edge to house the mechanism behind the faceplate, so the frame must have sufficient depth and material to support the cutout without weakening the structure.

    Can it be paired with a keypad or card reader?

    Yes. The strike is designed to integrate with standard access control systems including magnetic card readers, proximity fob readers, keypads, intercoms and remote-release buttons. The control system sends a 12VDC signal to the strike to release the latch when access is granted.

    Shipping & Returns

    Free worldwide delivery

    Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

    Returns

    30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.