ABB SACE PR231/P blocking device. It is fitted to the breaker by removing the the fascia and securing in place. It blocks access to the push buttons; operation can only be achieved with a special ‘push-tool’. While this may be an effective deterrent against inadvertent operation, it can’t really be classified as a lockout device because no padlocks are involved.
Click on the thumbnails below to download the data sheet and fitting instructions.