A SPRING OPERATED ACTUATOR FOR AN ELECTRICAL SWITCHING APPARATUS
摘要
<p>The invention relates to a spring operated actuator for an electrical switching apparatus. It includes an opening spring (3), a closing spring (4) and a damper (18) for the closing. According to the invention the damper (18) is a rotary air damper (18) with components that rotate relative to each other and has air as working medium for the dampening.</p>
