Waste sand from the production process tended to clog up the previous safety system, but Castell's heavy-duty KSE20 multi-key electrical switches
and Al access interlocks have been unaffected by the demanding environment.
A uniquely coded Castell key is released from the end of the lock and inserted into an electrical switch
located next to the bay door.
"It's like the main electrical switch
in a building.
At their home in Allerton, near Liverpool, his parents told how Andrew "talks" with an electrical switch
* Electrical switch
cover (left side, push-to-talk), NSN 5930-01-464-9981
Mike Walker of St Helens Chamber said: ``While the visit is likely to attract many companies from produce-related industries, it will be of interest to a variety of businesses since this area of France boasts a port, an engineering industry and an electrical switch
One of the latest developments out of Los Alamos (N.M.) National Laboratory is the super-fast, high-power electrical switch
. A pulse of laser light activates the device, turning electricity on in less than a billionth of a second.