4 inch Three Phase Permanent Magnet PM Motor Franklin Electric

Franklin Electric 4" Permanent Magnet (PM) encapsulated motor up to 7.5 kW

The 4" Synchronous encapsulated motor is characterized by first-class efficiency. The submersible motor’s permanent magnet equipped rotor eliminates rotor losses thus significantly reducing motor current and heat rise. In many cases, reduced motor current equals less drop cable cross sectional area further reducing overall installation cost.

Excellent partial-load efficiency of permanent magnet motors allows the entire power range to be covered with only a few different motor sizes, thus offering important stock-keeping advantages.

Features & Benefits

• 4" NEMA mounting design with metric studs
• Stainless steel splined shaft
• Stator shell in 316SS
• StatorSHIELD™ - Franklin encapsulation system
• Factory filled with Franklin’s non-toxic water soluble fill solution
• Liquid lubricated radial bearings and High capacity Kingsbury type thrust bearing for 100 % maintenance free operation
• Field replaceable lead using Franklin’s exclusive Water Bloc technology with extended jam nut in Stainless steel
• High efficiency electrical design for low operation costs
• Drinking water approvals
• Suitable for use in water with increased salinity
• Electrical Designs: 3~

Specification

• Ratings: 0,55kW - 3,0kW; Thrust load 4kN
• Ratings: 3,0kW - 7,5kW; Thrust load 6,5kN
• Voltage: 220V / 380V
• Voltage tolerance: -±10 % (100 Hz)
• Nominal ambient temperature: 30°C with 0,08 m/s cooling flow
• Protection IP68 / insulation class B
• Frequency of starts: max. 20 ; with 3 min. rest period
• Special lead lengths on request
• Vertical and horizontal operation
• All motors with factory installed leads 1,5 m / 2,5 m (6500N)

Pollution Recovery version:

• Fluorelastomere (Viton®) rubber parts
• Special Polyuretane (PUR) lead assemblies
• 304SS (316SS Stator) graded Stainless Steel as Standard

Options

• Built in lightning arrestors
• 316SS material design