{"product_id":"sangamo-q557-24-hour-time-switch-3-on-off-day-omit-20a","title":"Sangamo Q557 24-Hour Time Switch 3 On\/Off - Day Omit 20A","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Sangamo Q557 is a 24-hour programmable time switch with three independent on\/off cycles, a day omit dial for skipping scheduled operations on specific days, and a manual override button for temporary control. The unit is rated at 20A on 230V mains and uses a quartz clock mechanism housed in a clear polycarbonate case with red and white dial graphics.\u003c\/p\u003e\n\u003cp\u003eDesigned for commercial heating, lighting and ventilation control where different schedules are needed across the week, the Q557 allows each of the three on\/off cycles to be set to different times and then selectively omitted on chosen days using the outer day omit ring. The manual override button temporarily switches the load on or off without reprogramming the stored cycles, making it suitable for buildings where occasional manual intervention is needed outside the automatic schedule.\u003c\/p\u003e\n\u003cp\u003eThe 100-hour battery reserve maintains the programmed schedule and clock time through power cuts, so the timer resumes operation at the correct time when mains power returns. The unit mounts on standard DIN rail or onto a backplate in consumer units and distribution boards. The clear case allows visual confirmation of the current time position and programmed settings without opening the enclosure.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Net Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.412\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Gross Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.456\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Gross Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.41\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Length (mm)\u003c\/td\u003e\n\u003ctd\u003e104\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Width (mm)\u003c\/td\u003e\n\u003ctd\u003e83\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Height (mm)\u003c\/td\u003e\n\u003ctd\u003e134\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Length (mm)\u003c\/td\u003e\n\u003ctd\u003e104\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Width (mm)\u003c\/td\u003e\n\u003ctd\u003e83\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Height (mm)\u003c\/td\u003e\n\u003ctd\u003e134\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_Q557.3_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/manual_RPTS_STANDARD.pdf\" target=\"_blank\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eHow many on\/off cycles can be programmed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Q557 allows three independent on\/off cycles to be set within each 24-hour period. Each cycle can be set to a different time and can be omitted on specific days using the day omit dial.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens during a power cut?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 100-hour battery reserve maintains the programmed schedule and clock time through mains power failures. When power returns, the timer resumes operation at the correct time without needing to be reset.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the schedule be overridden manually?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The manual override button allows temporary switching of the load on or off without changing the stored programme. The timer returns to automatic operation at the next programmed event.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the day omit feature used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer day omit ring allows specific days to be skipped from the automatic schedule. For example, a heating schedule can be programmed for weekdays and then Sunday can be omitted using the dial, without needing to reprogram the entire cycle.\u003c\/p\u003e","brand":"Sangamo","offers":[{"title":"Default Title","offer_id":45294049493259,"sku":"Q557.3","price":203.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/Q557.3_8e2b8084-3ee0-415d-ab69-c1594d75a87e.jpg?v=1714667621","url":"https:\/\/niori.co.uk\/products\/sangamo-q557-24-hour-time-switch-3-on-off-day-omit-20a","provider":"Niori","version":"1.0","type":"link"}