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Application

While Direct Current (DC) power is applied, these devices hold the door open to permit free passage. When triggered, they release, allowing the door to shut.

The hold-opens can be linked to a fire alarm system to close automatically in case of emergency, preventing the spread of smoke through the building.

Hold opens are supplied with 838-3 armature plate, which is morticed into the door and engages the magnetic hold open.

Additional information for this product is available from - http://www.assa.co.uk/en/site/assacouk/Products1/?groupId=645142

Description

Application:

While Direct Current (DC) power is applied, these devices hold the door open to permit free passage. When triggered, they release, allowing the door to shut.

The hold-opens can be linked to a fire alarm system to close automatically in case of emergency, preventing the spread of smoke through the building.

Hold opens are supplied with 838-3 armature plate, which is morticed into the door and engages the magnetic hold open.

Additional information for this product is available from - http://www.assa.co.uk/en/site/assacouk/Products1/?groupId=645142

Specification data
Product Reference

M838-A

Mortice hold-open controlled by alarm system or remote switch.

M838-iSU

Wall mounted hold-open controlled by alarm system, remote switch or manual override button.

M838-iGBU

Floor mounted hold-open controlled by alarm system, remote switch or manual override button.

M838-BW2U

Surface mounted hold-open controlled by alarm system, remote switch or manual override button. Distance from floor: 110 mm.

M838-BW4U

Surface mounted hold-open controlled by alarm system, remote switch or manual override button. Distance from floor: 350 mm.

Standard product features

Holding force:

800 N (80 kg).