Here is an overview of the advantages of the mechanical variant as compared to the motorised one:
Hooks and latch are unlocked by motor when opened
Immediate locking when door is pulled closed
Tight seal improves energy saving efficiency
Door is exceptionally durable and has a long service life
Insurance coverage even if the door is only pulled shut
New duo hook for added security and dynamic contact pressure
Smooth operation despite the tight seal
Magnetic trigger minimises grinding marks on the door frame
Fail-safe function prevents the door from slamming shut when the hooks are extended
Holiday lockout function for improved security
Optionally available with convenient daytime latch
Also suitable for age-appropriate living