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to back up an existing units program or store another program schedule for occasional use
Sangamo Q551 Solar Dials come in 4 variations depending on where you are in the British Isles the switch is adjusted to match the slight differences in sunrise and sunset times
Can be programmed with supply disconnected
7 Not fitted
Refurbished Q555 Operations_3 ON/OFF Operations to back up an existingThe Q555 time switches are robust, 20amp switches that are ideal for the switching of heating and lighting applications up to three times a day. The Q555 has a 4 pin base which means it has independent motor switching connections which enable a different switching circuit voltage from the voltage powering the time switch. The Q555 has a 100 hour battery reserve which is useful should there be a power failure. The day omit feature means you can skip
