How Elevator Brakes Work to Keep Elevators Safe

We use elevators every day without thinking much about them. Press a button, the doors close, and the ride feels smooth. But what actually makes the car stop right at your floor and stay steady? And if the power suddenly goes out, what holds it firmly in place? The answer is simple: the elevator brake.

What is An Elevator Brake?

Elevator brakes, often called “internal contracting brakes,” are one of the most important safety parts of an elevator. You can think of them like a car’s parking brake, only much more precise and powerful. During normal rides they don’t make things more complicated, but when there’s a power failure or system problem, they step in. The brake uses mechanical force to stop the car and hold it firmly on the rails, keeping both passengers and equipment safe. In many ways, it’s the last and most reliable line of defense in elevator safety.

How Does an Elevator Brake Work?

How Elevator Brakes Work
Elevator brakes mainly work with the help of electromagnets. When the elevator is running normally, the electromagnet is powered and keeps the brake released so the car can move. If something goes wrong—like a power failure or system error—the power to the electromagnet is cut off. The springs then push the brake into action, stopping the car and holding it firmly in place.

The process is simple:

1. Power is lost → the electromagnet lets go.

2. Springs push the brake pads onto the drum or disc.

3. The brake grips and stops the elevator’s movement.

4. Sensors and the control system confirm the stop.

5. The brake stays locked until the system is safe to run again.