Sangamo Q550 Astro 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. Simply locate where you are on the map and add the number on to the end of the part number or select the equivalent zone. The ON operation always tracks SUNSET while the OFF operation can be made either to track SUNRISE, or to occur at a fixed time between 8:30pm and 1:00am. A “day omission” device allows you to select any number of days in the week on which the switching cycle can be disabled. The Solar Time Switch is ideal for applications which require control linked to sunset and sunrise times. Popular applications for solar time switches include street, stairwell and security lighting. Once set, the switches track SUNSET and SUNRISE throughout the year, without the need to sense light levels. This avoids the installation and maintenance problems associated with photo sensing devices and means they can be left to operate unattended for years. FEATURES Programming: 24 hour with 1 ON/OFF operationsCurrent Rating: 20AConnection Pins: 3Battery Reserve: 100 hoursDay Omit Dial: Yes (Omits the ‘ON’ operation) SPECIFICATIONS Programming 24 hour programme with 1 ON/OFF operation per dayDisplay Astro dialMounting Surface mountingCurrent Rating SPST: 20amp resistiveSupply 230V, 50/60 Hz a.c.Base Type 3 PinReserve 100 hrs (providing battery has been charged for 300 hrs)Day Omission Yes (omits the “ON” operation)Temp Override Facility Advance to “OFF”, when program “ON” and will remain “OFF” unit next (Manual Button) “ON” operation and vice versaCable Size 6.0mm2Timing Accuracy 5 mins/yearPower Consumption 0.6W at 230VAmbient Temperature Range Designed to operate over a temperature range of 0°C to 50°C continuousLive Parts Protection This timer is totally protected by its enclosureDirt Protection Normal domestic dust deposits onlyMoisture Protection Ordinary: has no special protection against moistureShock Protection Class 1 (Product must be earthed)Dial Calibration 15 min divisionsSetting Accuracy +/- 3 minutesConforms to BS EN60730Dimensions Height (wall mounted) 136mm, width 105.7mm, projection 82mm, (Total height 146.5mm) WIRING 1 – Live In (Clock & Load)2 – Neutrals3 – Live Out (Load)Earth Posn – Earth DOWNLOADS Q550 Datasheet [PDF] RPTS Astro Instructions [PDF]
