4″ RESIN FILLED ENCAPSULATED MOTORS – GR SERIES
Submersible MotorsGransa “GR series” motors are deep well / borehole encapsulated submersible type, pre filled with anti-freeze agent as lubricant. These motors are available in single phase and three phase power supply. All single phase motors are thermally protected and specific ranges are in-built with lightening arrester. Rotors are supported with bush and thrust bearings to withstand maximum axial and radial thrust loads. All mounting dimensions are in accordance with NEMA standards.
Specification
| Nominal Diameter | 4″ |
| Power Range (kW) | Single Phase : 0.37 – 1.5kW, Three Phase: 0.37 – 7.5kW |
| Speed | 2900 rpm |
| Versions | Single Phase : 230V, 50Hz, Three Phase : 380V -415V, 50Hz |
| Method of Starting | Single Phase – Capacitor Start and Induction Run (CSIR) up to 0.75kW, Capacitor Start and Capacitor Run (CSCR) up to 1.1kW, Three Phase – Direct On Line(DOL). |
| Maximum Down Thrust Load | 0.37 – 0.55kW – 1500N 0.75 – 1.5 kW- 3000N, 2.2 – 7.5kW – 6500N |
| Type of Duty | S1 (Continuous) |
| Degree of Protection | IP 68 |
| Class of Insulation | F |
| Max.Temperature of Liquid | 33˚C |
| Minimum Cooling Flow Along the Motor | 0.15 m/sec |
| Starts per Hour | Single Phase – 20 Times, Three Phase – 12 Times |
| Available M.O.C | Type A |
Features
- High effieicency
- Thermal protection in single phase motors, lightening arresters in specific models
- Corrosion resistant stainless steel motor body
- Extremely hardwearing water lubricated bearings
Applications
- Residence
- Agriculture
- Gardens
- Sprinkler systems
- Fountains
- Building services
