Mechanical timeswitch by Tempatron
For the electrical/electronics hobbyist. This looks like the . See the Tempatron co uk website and pdf. Six cam operated change-over micro-switches. Sequence repeats hourly. Motor is mains powered. The web site says the micro-switches are 15A at 250Vac (resistive load). The cams are adjustable and the minimum duty cycle is 50% so that is 30 minutes, on or off, depending on which contacts of the micro-switches are used. Includes a spare plastic gearbox which I can not be sure is the same ratio. £45 at Farnell. PayPal accepted, p&p extra. Read more