{"product_id":"grundfos-grundfos-hocheffizienz-umwalzpumpe-alpha-solar-25-75-pn10-g1_1-2-180mm-1x230v-98989300-verkaufseinheit-1-stuck","title":"GRUNDFOS Grundfos High-Efficiency Circulator ALPHA Solar 25-75 PN10 G1_1\/2 180mm 1x230V – 98989300","description":"High-efficiency ALPHA SOLAR circulator pump for use in solar thermal systems with variable or constant flow. However, high-efficiency pumps with electronically commutated motors (ECM), such as the ALPHA SOLAR, must not be controlled by an external speed controller that changes or varies the supply voltage. The speed can be regulated via a pulse-width modulated signal (PWM signal) supplied by the solar system controller to optimize solar energy yield and system temperature. This also significantly reduces the pump's power consumption. If no PWM signal is available, the ALPHA SOLAR can be set to one of 4 constant speeds. The pump is then only switched on and off via the controller. Versions\/Functions\/Features: - High-efficiency EC permanent magnet motor technology - Energy Efficiency Index (EEI) \u0026lt;= 0.20 according to EN 16297-3: 2012 Best in Class - PWM profile C. The PWM signal is a method for generating an analog signal from a digital source - 4 constant speeds - Maintenance-free - Low noise - Easy installation - Deblocking screw - Max. ambient temperature +70 C","brand":"GRUNDFOS","offers":[{"title":"Default Title","offer_id":56294790693195,"sku":"GR98989300","price":665.87,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/5075\/6427\/files\/87fb94f8ca104f9b82544553328d0e0a.webp?v=1768552814","url":"https:\/\/solarvic.at\/en\/products\/grundfos-grundfos-hocheffizienz-umwalzpumpe-alpha-solar-25-75-pn10-g1_1-2-180mm-1x230v-98989300-verkaufseinheit-1-stuck","provider":"SOLARVIC | Photovoltaik \u0026 Haustechnik","version":"1.0","type":"link"}