The SOMMER 5116V003 Emergency Release Lock (2.75-inch) is an exterior key-release accessory that lets you disengage a garage door opener from outside the garage in case of a power outage, lost remote, or malfunction. Designed to mount through the door and connect to the opener’s existing emergency release mechanism, this keyed lock cylinder allows you to unlock and pull the cable to switch the operator to manual so the door can be opened by hand. It’s a practical replacement part or upgrade for garages that do not have a secondary entry door, often referred to as an outside disconnect or exterior key release.
Engineered for use with SOMMER Direct Drive systems and compatible with many openers that utilize a standard emergency release cord, the 5116V003 features a 2.75-inch cylinder length; verify door thickness for proper fit before installation. Typical installation involves drilling a through-hole in the upper door section, mounting the cylinder, and routing the release cable to the opener’s carriage, followed by testing to ensure smooth disengagement and re-engagement. For safety, only disengage when the door is fully closed and properly balanced, and keep keys secure, as releasing the operator allows the door to move freely. Ideal for residential sectional door applications, this SOMMER emergency release lock supports reliable outside access without requiring power or wireless credentials.