CQR Deedlock Standard Double Maglock, Unmonitored, 545kgf per Door AEM20060

What this lock is for

A pair of doors can be held from one body fixed across the frame head. That keeps the fitting tidy, and each door gets its own magnet and its own holding force.

This CQR maglock is the unmonitored double in the Deedlock standard range. It suits an access control system or door entry job where the lock simply holds and releases.

How it works

• Magnet and armature: a coil in the body becomes an electromagnet when powered and pulls a steel armature plate fixed to the door. Switch the power off and the door is free.
• Self-regulating voltage: the lock accepts 12V or 24V DC without you setting it, drawing less current at the higher voltage.
• No status output: As a rule, an unmonitored lock cannot tell a controller whether a door is held, so use a separate door contact on each leaf if the system needs that signal.

Where to use it

The range suits entry and exit doors in medium to high traffic areas. For a double, typical places are main entrances, communal lobbies and busy corridor pairs.

Any door people use to leave a building needs extra thought. A magnetic lock on an escape route usually needs a fire alarm link and a release device, and that decision sits with whoever holds the fire strategy.

What the figures mean in practice

• 545kgf per single door: this is a nominal holding force with the armature flat against the magnet, and it applies to each door and not to the pair. The frame and fixings need to be strong enough to take it.
• Up to 70% on brackets: a bracket will typically reduce the holding force by up to this much, because a bracket flexes. Fit directly to the door where you can.
• 1000mA at 12v: size the supply for the whole door set, including the controller and any release devices, then add a margin.
• 9KG: this is a heavy unit across a wide opening, so check the frame head can carry it.

Installing it

• Check the opening: As a rule, outward-opening doors usually take the lock and armature directly, while inward-opening doors usually need brackets.
• Choosing a bracket: Brackets for this range include the STD/ZL and STD/L, with the STD/AH armature housing. Count one for each door and confirm the quantity a double needs before ordering.
• Safety straps: CQR also offers AEM/STRAPS, which stop the magnet falling from the door frame if it comes away from the mounting.

Planning your system

The lock is one part of the door set. The job also needs a controller or door entry system, a DC power supply and a way to release the doors from inside.

Decide early whether the lock must hold during a mains cut. If it must, the supply needs battery back-up, and the release arrangements on escape routes still have to work.

Standards and ratings explained

TS010 is the Doors and Hardware Federations technical standard for electro-magnets, in the 2019 version. This lock is TS010 Grade 3.