CQR Deedlock Slimline Double Magnetic Lock, Unmonitored, 600 lbf AEM20003

What this lock is for

A maglock holds a door with an electromagnet on the frame and a steel armature plate on the door. There is no bolt to throw, so the door simply stays shut while the magnet has power.

A double unit is normally chosen for a pair of doors meeting at one frame head. The long body takes the place of two separate locks.

How it works

• Self-regulating supply: the lock works on either 12V or 24V DC. Do not assume any voltage beyond those two, or an AC supply.
• Unmonitored: the lock has no status contact on this version. The indicator can still be read by eye, but your controller is not told whether the door is held.

Where to use it

CQR positions the slimline range for medium traffic doors, so busy offices and communal areas are the natural fit. Check that against how often your doors really open.

Where the door is on an escape route, the lock is only part of the job. Agree how it will release with whoever holds the fire strategy.

What the figures mean in practice

• Per single door: the holding force is for one door, not a total for the unit. Plan around that figure when weighing up each leaf.
• Three units of force: lbf, newtons and kgf all describe the same pull. Use whichever your specification asks for.
• Current: the magnet draws power all the time the doors are locked. Add this load to anything else on the supply, including any lock on the same circuit.
• Grade 2: CQR tests against the TS010 technical standard to check the holding force in a practical installation. A grade is not the same thing as a fire or escape approval.

Installing it

• Check the frame: the frame head has to carry the pull as well as the lock, so check it is firm before fitting.
• Weight: at this length and weight it is worth having a second person to hold the unit while it is fixed.
• Alignment: each armature needs to sit flat against the magnet face. A door that has dropped on its hinges can lose a lot of holding force.
• Testing: confirm both doors hold when powered and release when power is removed.

Planning your system

The job also needs a controller or keypad to switch the lock, a power supply sized for the load, and usually an exit button and an emergency door release.

Inward opening doors commonly need a bracket. CQR offers a Z&L bracket, an L bracket and an armature housing for the slimline range. Check how many a double unit takes before ordering.

CQR also offers AEM/STRAPS safety straps, which keep the magnet from falling off the door frame if it comes away from its mounting.