How to compare Grundfos-class bids without brochure wars
When tenders mention “grundfos rsi”, freeze electrical and hydraulic scope first: motor kW/voltage/phase, PV Voc/Vmp, IP, hybrid AC, dry-run/tank logic, warranty and lead time. Only then compare brands. Boray will map BR500-P / BR600-P / FD600 to that scope and will not invent competitor specifications.
Equal-scope checklist for the purchase order
Copy these lines onto every bid — including alternatives to “grundfos rsi”: rated current, PV input window, overload, enclosure, pump protections, documentation language, and Incoterms. Reject “similar to” claims that omit frame numbers.
Where Boray sits as a manufacturer alternative
Boray is a Shenzhen manufacturer of solar pump inverters and motor-control products. Use Boray when you need a documented solar pump VFD response beside a “grundfos rsi” line item. Boray does not claim to be that brand; it competes on verified scope and engineering support.
Replacement and migration notes
If you are replacing an installed unit found via “grundfos rsi” searches, capture motor plate, PV string data and protection settings before rip-out. Match voltage/current; re-commission dry-run and tank inputs. Parameter menus are never identical across brands.
Next step with Boray
Send the ratings from the “grundfos rsi” quote (kW, voltage, IP) plus your motor and array data. Focus: Specify equal hydraulic duty for RSI-class tenders; Boray bids the solar pump drive function, not the badge.
