Lid Safety Switch for the early range of Cromartie Top Loading Workhorse kilns.
On 13/16 Amp plug in models such as Hobbytech 45/60, two are used in double pole configuration switching both line and neutral.
On larger three circuit kilns, three are used irrespective of single or three phase connection.
Priced individually. According to supplies available at the time of manufacture, a number of switch types have been used. Please take care to order the correct part as the different types ARE NOT interchangeable.