GEM Dual voltage Shear lock, magnetic Shear lock, Electromagnetic Shear lock, Shear magnetic locks, Shearing force, Semi-flush mount Shear lock , Surface mount Shear lock, Frameless door Shear lock, Glass doors Shear lock, Mini shear lock, Narrow shear lock.

Advantages of Shear Locks
The shear lock comprises of a lock bolt and a shear keeper and operates through use of an electromagnet. To lock the door, the armature plate with its shear keeper is attracted to the electromagnet that has the lock bolt. The lock bolt fills the holes in the shear keeper resulting in a mechanical locking action. This lock has a high physical shear holding force. The design of shear locks utilizes the holding force of the electromagnet differently to that of an electromagnetic lock

The main advantages, features and important notes of using GEM Shear Locks are listed below:

	The locking mechanism is totally concealed providing discrete security while the lock supports both electromagnetic lock and electric dropbolt feature.	Shear locks can be fitted to double swing doors with 180° opening angle and is suitable for any type of door and frame construction.

The shear lock is designed such that the shear keeper will easily retract from the lock bolt when the power is removed. This feature is especially important for emergency situations.

To maximize lock performance, the gap between the shear keeper in the armature plate and lock bolt in the electromagnet cannot be too large. Generally a 2 -3 mm gap between the top of the door and the frame is optimum for the electromagnet to attract the armature plate and keep the door locked. The armature plate can be adjusted if the gap is too large.

Shear locks are strong locking mechanisms since they combine mechanical and electromagnetic locking mechanisms. It is suitable for applications which require a high level of entry control.

Our GS series shear lock has received patents from seven countries including the US, UK and China. It has become one of the most commonly used access control locks by security engineers.

Distance in feet from power source to farthest locking device
Minimum Wire Gauge for 12 VDC

AMPS	25f	50f	75f	100f	150f	200f	250f	300f	400f	500f	1000f
0.25A	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	16 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	--
0.50A	18 Gauge	18 Gauge	18 Gauge	16 Gauge	16 Gauge	14 Gauge	12 Gauge	--	--	--	--
0.75A	18 Gauge	18 Gauge	16 Gauge	14 Gauge	12 Gauge	12 Gauge	--	--	--	--	--
1.00A	18 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	--	--	--	--	--	--
1.50A	18 Gauge	14 Gauge	12 Gauge	12 Gauge	--	--	--	--	--	--	--
2.00A	16 Gauge	14 Gauge	12 Gauge	--	--	--	--	--	--	--	--

Minimum Wire Gauge for 24 VDC

AMPS	25f	50f	75f	100f	150f	200f	250f	300f	400f	500f	1000f
0.25A	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	16 Gauge	16 Gauge	16 Gauge
0.50A	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	16 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	--
0.75A	18 Gauge	18 Gauge	18 Gauge	18 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	12 Gauge	--	--
1.00A	18 Gauge	18 Gauge	16 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	12 Gauge	--	--	--
1.50A	18 Gauge	18 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	--	--	--	--	--
2.00A	16 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	--	--	--	--	--	--