Electromagnetic Lock Features:
• Electromagnetic locks are designed to take advantage of the physics behind electromagnetism. An electromagnetic lock
comprisestwo main parts, an armature plate made of metal and steel plate surrounded by a coil of wire which can be
magnetized. When an electrical current passes though the coil, the steel plate becomes magnetized and strongly attracts
the armature plate, locking the door.
• Electromagnetic locks deliver high performance. For example, our 10010 series of electromagnetic locks, with a maximum
holding force of 545 kg (1200 lbs), only use 1.8W of power to produce up to 240 kg (530 lbs) of holding force.
• The holding force capability of each of our electromagnetic locks is tested in a collinear load test. The electromagnetic lock
is loaded in a rig with power being supplied so that the electromagnet strongly attracts the armature plate. Then force is
slowly applied to pull the armature plate away from the electromagnet. When the mechanical pulling force overcomes the
magnetic force, the force is the strength of the electromagnet.
• This figure shows the relationship between voltage and holding force. Voltage is proportional to power consumption when
the current is fixed. Holding force is proportional to voltage until holding force reaches a maximum. At this point, any further
power consumption will not increase holding force.