Quality in the Well Franklin Electric 4" Submersible Encapsulated Motors, manufactured in ISO 9001 certified facilities. This motors are built for operation in 4" diameter or larger water wells. It is fitted with water lubricated radial and thrust bearings for maintenance-free operation.  The motor is filled with a special FES93 fluid, providing frost protection down to -40ºC storage temperature.  A special diaphragm ensures pressure compensation inside the motor.

• Stainless steel motor casing • Non-contamining water-cooled design  • Water lubricated radial and thrust bearing  • Shaft projection and coupling dimensions to 4’’ NEMA standards • Maximum starts/stops per hour equally distribuited: 20   • Capacitor and thermal cut-out with automatic reset, built in the motor • Hermetically sealed stator in resin with high dieletric power  • Maximum immersion depth for H3F is 150 m • A flow of min. 8 cm/s of water must be guaranteed around the casing. • 100% of the motors are tested • Corrosion resistant materials  • Insulation class: B • Maximum ambient temperature: 30 °C  • Lip seal • Maximum supply voltage variations: +6% / -10% • Mounting: vertical / horizontal position. • 100% of the motors are tested • Protection: IP 68