A B Bearings: Ball , Duty: Continuous , Efficiency Group: NEMA Premium , Hz: 50/60 , Insulation Class: F , Max. Ambient Temp.: 40 Degrees C , Motor Application: Pumps , Motor Design: 3-Phase , Motor Enclosure Design: Totally Enclosed Fan-Cooled , Motor Shaft Design: JP Threaded , Motor Sub Application: Close-Coupled Pump , Motor Thermal Protection: None , Phase: 3 , Service Factor: 1.15 , Shaft Dia.: 1.25" , Voltage: 230/460
Working Mechanism
- Electric motors convert electrical energy into mechanical energy for generating motion.
- Force is produced within the motor through the interaction between a winding alternating (AC) or direct (DC) current and the magnetic field.
Features
- Marathon Globetrotter close-coupled pump motors have Class F insulation to withstand temperatures up to 40 degrees Celsius.
- They feature steel construction for structural rigidity and ball bearings to reduce motor friction.
- These triple-phase units having a totally enclosed fan cooled enclosure, allowing air to flow through the motor and prevent overheating.
- They allow continuous duty cycle operation with clockwise / counterclockwise shaft rotation, delivering speeds up to 3600 rpm.
- These units permit flange / base horizontal mounting for ease of installation.
Frequently Asked Questions
What is a close-coupled pump?
A shared motor and pump shaft or a strong connection between the motor shaft and pump shaft inside the pump casing defines close-coupled pumps. Instead of being mounted on pump feet, the pump casing is fastened to the driving flange.
What is the difference between single, double and triple-phase motors?
- Single-phase motor: Current flows through a single conductor.
- Double-phase motor: Current flows through 4-wire conductors (2 for each phase).
- Triple-phase motor: Current flows through 3 separate conductors.
What does continuous duty operation mean?
A continuous load is where the highest current is expected to operate continuously for three hours or more.
What is the difference between TENV and TEFC motors?
Totally enclosed non-ventilated (TENV) motors are designed without air openings, ideal for applications requiring frequent sanitising or cleaning. The TEFC (totally enclosed fan-cooled) motors come with an external fan to circulate outside air to the motor.