Standard toggles its breakers that have toggle openings of less than 11mm and are compatible on all padlocks that are safe and hasps. There is no tool required.
For breakers with toggle openings ranging from 11.5mm- 13mm. The safety pads and locks fit perfectly. It also doesn't require any tools.
With pins inwards
Universal MCB Lockout is a device that quickly locks out MCB typically used in motor control systems and industrial automation. It can be installed easily by using a screwdriver.