2000 kg (4395 lb) would be the weight of the AC motor that this 630 A / 440 kW contactor can turn on and off. This also explains the shear size of this contactor, a almost solid piece of metals, copper coil, iron core, copper terminals, platinum contact points and aluminium enclosure.
In this video I give you a tour of a beautifully designed piece of automation equipment and we take a look inside during a teardown to see how its made, this is a good way to learn about electronics, mechanics and general design.
On 10 August 1987, ASEA and BBC Brown Boveri announced they would merge to form ABB Asea Brown Boveri. Allmänna Svenska Elektriska Aktiebolaget (General Swedish Electrical Limited Company, ASEA) was founded in 1883 by Ludvig Fredholm in Västerås, Sweden as manufacturer of electrical light and generators. Brown, Boveri & Cie (BBC) was formed in 1891 in Zurich, Switzerland by Charles Eugene Lancelot Brown and Walter Boveri as a Swiss group of electrical engineering companies producing AC and DC motors, generators, steam turbines and transformers.