18570000 - Hold Open TS92B & TS93B Device

The dormakaba 18570000 Hold Open Device is a precision-engineered mechanical accessory designed for TS92 and TS93 overhead cam-action door closers. Installed within the standard G-N slide channel, it provides a convenient hold-open function without requiring electrical components or complex modifications. This friction-based unit securely holds compatible doors open at any angle between 75° and 150°, making it ideal for environments where temporary door retention improves accessibility and convenience. The adjustable pull-off force allows installers to tailor the release resistance to suit different door weights and traffic conditions, while the integrated on/off function enables the hold-open feature to be activated or disengaged as required. Its non-handed design ensures compatibility with both left- and right-hand door configurations, and the slide-in installation makes it suitable for retrofit or replacement applications on compatible TS91, TS92 and TS93 door closer systems. Important: This mechanical hold-open device must not be used on fire-rated or smoke doors, as it prevents automatic door closing during an emergency and does not comply with fire safety requirements.