{"product_id":"grundfos-magna1-50-60-f-cast-iron-variable-speed-circulator-pump-heating-surfaces-composite-impeller","title":"Grundfos MAGNA1 50-60 F Cast Iron Variable Speed Circulator Pump for Heating Surfaces with Composite Impeller","description":"\u003cp\u003eWith a 50 mm nominal bore, the Grundfos MAGNA1 50-60 F circulator pump delivers energy-efficient variable circulation for commercial primary boiler loops, secondary cooling headers, and large air handler coils. Its integrated frequency converter automatically adjusts motor rpm based on system valve movement.\u003c\/p\u003e\n\u003cp\u003eA 240 mm port-to-port casing made from EN-GJL-200 cast iron houses a composite impeller, stainless rotor cladding, and maintenance-free canned rotor motor. Built for 10 bar working pressure, it handles circulating temperatures between -10°C and 110°C, with a total net weight of 17.4 kg.\u003c\/p\u003e\n\u003cp\u003eThe single-phase 230-240 V ECM motor has a maximum power input (P1) of 21 W to 252 W with electrical power input (P1) operating from 21 W up to a peak of 252 W at 1.15 A maximum current. Output metrics achieve a flow rate of 14.74 m³\/h (246 L\/Min) against a maximum head of 3.748 m across DN 50 DIN flanged pipe ports.\u003c\/p\u003e\n\u003cp\u003eNine selectable control modes cover proportional pressure, constant pressure, and fixed speed curves for straightforward hydronic balancing. Ingress protection is certified to IPX4D with Class F insulation, an EEI of 0.19, and an integrated fault signal relay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDN 50 flanged casing provides 246 L\/Min maximum flow capacity for central plant headers\u003c\/li\u003e\n\u003cli\u003ePermanent magnet motor with integrated VFD achieves an EEI rating of 0.19\u003c\/li\u003e\n\u003cli\u003eNine control modes adapt hydraulic output for radiator, underfloor, and constant flow\u003c\/li\u003e\n\u003cli\u003ePower consumption self-adjusts between 21 W and 252 W based on thermal demand\u003c\/li\u003e\n\u003cli\u003eCast iron EN-GJL-200 housing built for 10 bar maximum operational pressure\u003c\/li\u003e\n\u003cli\u003eComposite impeller provides chemical corrosion resistance in hydronic loops\u003c\/li\u003e\n\u003cli\u003eBuilt-in fault relay contact and external digital run input for BMS interface\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51139459940599,"sku":"99221333","price":3627.2,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-magna1-50-60-f-cast-iron-variable-speed-circulator-pump-heating-surfaces-composite-impeller.png?v=1789019376","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-magna1-50-60-f-cast-iron-variable-speed-circulator-pump-heating-surfaces-composite-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}