Eff Eff is a world-renowned German brand celebrated for pioneering the modern electric strike. This premium collection of Eff Eff mortice releases offers highly secure, reliable, and easy-to-integrate solutions for remote door access control. Designed to work seamlessly with intercoms and access control systems, the range caters to a variety of door types and security requirements.
Our selection includes:
- 14 & 34 Series: Continuously rated, 12V DC releases ideal for low-to-medium duty applications.
- 17 Series: Specifically engineered for UPVC doors, featuring an adjustable jaw and continuous rating.
- 75 Series: Versatile low-to-medium duty releases with an adjustable jaw for precise alignment.
- 76 Series Penta: A heavy-duty, monitored option featuring dual voltage and field-selectable fail-locked or fail-unlocked operation.
Whether you need a simple release for a standard frame or a heavy-duty monitored solution, the Eff Eff range provides the perfect blend of German engineering and robust security.
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Brand Connections
Eff Eff
effeff (often written EFF EFF) is a German electromechanical door-hardware brand best known for basically inventing the modern electric strike—the little powered latch mechanism that lets a door be released by a button, intercom, or access-control system without replacing the mechanical lock.
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Origins: effeff began in 1936 as a precision/electrical engineering workshop in Germany (founded by Fritz Fuss).
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Big invention: ASSA ABLOY’s own materials state that electric strikes were invented and patented by effeff in 1947, which is why “effeff strike” is almost a generic term in some trade conversations.
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What they make: a full electromechanical range including electric strikes, electric bolts/dropbolts, security locks and related escape route / egress components—designed to bridge mechanical locking with access-control systems.
Ownership / group: effeff is part of ASSA ABLOY (ASSA ABLOY announced the acquisition of German effeff Fritz Fuss KGaA in 1999).
Signature product DNA (why installers like them):
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Wide strike selection for different door types and install situations (“appropriate strike for every installation location” is literally their pitch).
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Lots of practical installer features on popular models—e.g., adjustable keep designs and system-friendly variants like the 118E family.
Release
Electric releases, also known as electronic strike plates, provide a secure and convenient solution for remote door access control by replacing standard mechanical strikes while keeping the door securely latched. Designed to integrate seamlessly with existing access control systems, our comprehensive range includes versatile options suitable for both commercial and residential applications. We stock high-quality electric strikes from leading industry brands including Adams Rite, Alpro, Asec, Eff Eff, ICS, and Trimec, as well as specialised outdoor gate releases from Locinox, ensuring reliable performance and enhanced security for any entry point. View all Release products
Access Control > Electric Locking > Release > Eff Eff (4)
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