Electromagnetic power-off brake, typically composed of key components such as the brake body, electromagnet, contact plate, reset spring, and brake pads. Its working principle is relatively simple and clear: when the brake is de-energized, the brake pads tightly contact the contact plate, transferring the resistance of rotation to the brake body through friction, thereby achieving the braking effect. The electromagnetic power-off brake, with its easy maintenance, flexible control, and fast response speed, has been widely used in various electrical equipment.