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
- Stainless steel splined shaft
- Κέλυφος στάτη από ανοξείδωτο χάλυβα 316SS
- StatorShield™ - Franklin encapsulation system
- Factory filled with Franklin’s non-toxic water soluble fill solution
- High-capacity Kingsbury type water lubricated thrust bearing
- Field replaceable lead using Franklin’s exclusive Water Bloc technology. Pressure-equalizing diaphragm
- High efficiency electrical design for low operation costs ύψιστη απόδοση και χαμηλό κόστος λειτουργίας
- All motors manufactured in ISO 9001 & 14001 certified plants and 100% tested
- Suitable for use in water with increased salinity
- Drinking water approvals
Specifications
- Thrust capacity:
- Ratings: 0.55 - 3.0 kW; Thrust load; 4 kN
- Ratings: 3.0 - 4.0 kW: Thrust load: 6.5 kN
- Voltage 220 V / 380 V (100 Hz - 3000 rpm)
- Voltage tolerance ± 10 % UN
- Nominal ambient temperature: 30 °. with 0.08 m/s cooling flow
- Protection: IP 68
- Insulation class B
- Starts per hourmax. 20 with 3 min. rest period
- Installation orientation: Vertical / horizontal (shaft end heightened)
- Rotation shaft end heightened
- All motors with factory installed leads: ≤ 2.2 kW: 1.50 m; ≥ 3 kW: 2.50 m
- Special lead lengths on request
Pollution Recovery Motor-version Specifications
- 304 graded stainless steel as standard, 316SS as an option
- Fluorelastomere (Viton®) rubber parts
- Special Polyuretane (PUR) lead assemblies
Options:
- other Voltages
- Built-in lightning arrestor
Links
- Order selection and performance characteristics of Technical brochure of 4”PM encapsulated submersible motors (50-60Hz)
- Τεχνικό φυλλάδιο υποβρύχιων κινητήρων 4” σε κάψουλα
- Complete catalogue of 4”PM encapsulated submersible motors
- Προδιαγραφές και αξεσουάρ υποβρύχιων κινητήρων 4” μόνιμου μαγνήτη (PM)
- Κατάλογος προϊόντων Franklin Electric
- Submersible motors catalogue