Volta included magnetic door holders in their offer. Door holders are used to hold door open. They use electromagnetic power – the door stays open as long as the power is supplied. When the power is turned off  by for example: fire alarm control panel or smoke diffusion system the door can be closed which is why they often complement fire alarm systems and smoke diffusion systems. All the devices included in our offer have 70kg holding force and 12 or 24 V operating current.

The group of products includes:

TD150B – basic version,

TD150W – wall version, has a built-in release button,

TD150F – floor version, has a built-in release button