Perfect for holding applications, these friction brakes can handle high torque with a compact size. The 24VDC design will operate on applications susceptible to weak battery, brown out or long wiring runs. When the electric power is applied, the armature is pulled by the electromagnetic force in the magnet body assembly, which overcomes the spring action. This allows the friction disc to rotate freely. When electrical power is interrupted, the electromagnetic force is removed and the pressure spring mechanically forces the armature plate to clamp the friction disc between itself and the pressure plate. This develops torque to hold the load.