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PA6

6” PA6 submersible motors
Designed to work 24 hours a day even in difficult conditions and manufactured with care using only the finest materials and components processed inside our own factory, the Bizzi & Tedeschi electric submersible motors PA6 series are among the very best in the sector in terms of quality and reliability, and truly emblematic of “Made in Italy” production.
Rewindable in water bath type, PA6-PA8 are three-phase asynchronous motors with squirrel-cage rotor and coupling flange according to Nema standards.
The cooling and lubrication system consists of a water-based mixture, of which the motor is pre-filled, with a low percentage of non-toxic antifreeze liquid, that also allows motor storage temperature up to -15°C. The copper winding wire is in a special PVC coating that protects it against the water and guarantees its complete insulation.
Stator composed by high permeability magnetic sheet for excellent energy savings.
Copper squirrel cage rotor for all power ratings for superior performances.
Widely sized Mitchell type thrust bearing, to withstand the axial thrust of the pump.Rubber expanding diaphragm to allow the equalization between the motor internal and external pressure.
Motor sealed by mechanical seal and anti-sand ring.
The motors are rewindable and easy to repair.
IP68 protection.
Insulation class: PVC coated wire 70°C, PE2+PA coated wire 90 °C.
Direction of rotation: duplex (clockwise and anticlockwise).
Service S1 according to CEI EN 60034-1.

Standard version: 380-400V D.O.L. or star/delta starting. 50 Hz. Winding for “Cold Water”.
On demand: Winding for “Hot Water” with PE2+PA coated wire, PT100 sensor, 60Hz, different voltages, horizontal installations.

Working limits:
Water temperature: see relative tables
Max allowable voltage variation: +6/-10% referred to 400V
Min. Frequency: 30 Hz
Max. start/hour: N° 15 from 4kW to 22 kW and N° 10 above 22 kW
Rest time between starts: > 1 min from 4kW to 22 kW and > 2 min above 22 kW
Horizontal installation: for 6”motors up to PA6-30 and for 8” motors up to PA8-70
Minim. immersion depth: see NPSH of the pump

Fields of application:
PA6-PA8 motors are suitable to be coupled with submersible pumps to raise clean water from deep wells.
Performance range
Motor
type
PN Fmax
HP kW N
PA6-5 5,5 4 16 500
PA6-7 7,5 5,5 16 500
PA6-10 10 7,5 16 500
PA6-12 12,5 9,3 16 500
PA6-15 15 11 16 500
PA6-17 17,5 13 16 500
PA6-20 20 15 16 500
PA6-25 25 18,5 16 500
PA6-30 30 22 27 500
PA6-35 35 26 27 500
PA6-40 40 30 27 500
PA6-50 50 37 27 500
PA6-60 60 45 27 500

PA8

8” PA8 submersible motors
Designed to work 24 hours a day even in difficult conditions and manufactured with care using only the finest materials and components processed inside our own factory, the Bizzi & Tedeschi electric submersible motors PA8 series are among the very best in the sector in terms of quality and reliability, and truly emblematic of “Made in Italy” production.
Rewindable in water bath type, PA6-PA8 are three-phase asynchronous motors with squirrel-cage rotor and coupling flange according to Nema standards.
The cooling and lubrication system consists of a water-based mixture, of which the motor is pre-filled, with a low percentage of non-toxic antifreeze liquid, that also allows motor storage temperature up to -15°C. The copper winding wire is in a special PVC coating that protects it against the water and guarantees its complete insulation.
Stator composed by high permeability magnetic sheet for excellent energy savings.
Copper squirrel cage rotor for all power ratings for superior performances.
Widely sized Mitchell type thrust bearing, to withstand the axial thrust of the pump.Rubber expanding diaphragm to allow the equalization between the motor internal and external pressure.
Motor sealed by mechanical seal and anti-sand ring.
The motors are rewindable and easy to repair.
IP68 protection.
Insulation class: PVC coated wire 70°C, PE2+PA coated wire 90 °C.
Direction of rotation: duplex (clockwise and anticlockwise).
Service S1 according to CEI EN 60034-1.

Standard version: 380-400V D.O.L. or star/delta starting. 50 Hz. Winding for “Cold Water”.
On demand: Winding for “Hot Water” with PE2+PA coated wire, PT100 sensor, 60Hz, different voltages, horizontal installations.

Working limits:
Water temperature: see relative tables
Max allowable voltage variation: +6/-10% referred to 400V
Min. Frequency: 30 Hz
Max. start/hour: N° 15 from 4kW to 22 kW and N° 10 above 22 kW
Rest time between starts: > 1 min from 4kW to 22 kW and > 2 min above 22 kW
Horizontal installation: for 6”motors up to PA6-30 and for 8” motors up to PA8-70
Minim. immersion depth: see NPSH of the pump
Performance range
Motor
type
PN Fmax
HP kW N
PA8-40 40 30 45 000
PA8-50 50 37 45 000
PA8-60 60 45 45 000
PA8-70 70 52 45 000
PA8-75 75 56 45 000
PA8-80 80 60 45 000
PA8-90 90 67 45 000
PA8-100 100 75 45 000
PA8-125 125 93 45 000
PA8-150 150 110 45 000
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