MARATHON MOTORS General Purpose Motors, Three Phase, Dripproof, C Face Footless
Marathon general-purpose motors convert AC power into torque to drive mechanical loads. This torque is the measure of twisting or rotational force.
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Bearings: Ball , Duty: Continuous , Frame: 56C , Frame Material: Rolled Steel , Hz: 60 , Insulation Class: B , Max. Ambient Temp.: 40 Degrees C , Motor Application: General Application , Motor Design: 3-Phase , Motor Enclosure Design: Open Dripproof , Motor Shaft Design: Keyed , Motor Thermal Protection: None , Mounting: Face , Nameplate RPM: 3450 , Number of Speeds: 1 , Phase: 3 , Rotation: CW/CCW , RPM Group: 3001-3600 , RPM Range: 3001-3600 , Shaft Dia.: 5/8" , Shaft Length: 1.875" , Voltage: 208-230/460 , Warranty: 1 Years
Style | Model | Full Load Amps | HP | Length Less Shaft | Nominal Efficiency | Overall Length | Service Factor | Price | |
---|---|---|---|---|---|---|---|---|---|
A | 5K35FN55 | 1.5-1.8/0.9 | 1/3 | 8" | 61.0% | 9.88" | 1.75 | €311.01 | |
B | 5K37MN37 | 2.6-2.6/1.3 | 3/4 | 8.875" | 74.0% | 10.75" | 1.50 | €490.00 | |
C | 5K38PN47 | 3.3-3.2/1.6 | 1 | 9.437" | 74.0% | 11 5/16" | 1.40 | €402.28 |
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 general-purpose motors have 3-phase operation to deliver constant power and provide vibration-free & smooth performance at speeds up to 1725 rpm.
- They can be installed at any angle for user convenience.
- These units feature steel or rolled steel construction with a keyed shaft having clockwise / counterclockwise rotation.
- Open drip-proof enclosures allow air to flow through the motor and prevent overheating.
- They have squirrel cage induction for constant speed.
- The ball bearings are mechanically locked on the shaft end to reduce motor friction.
- These models are available in Z, H and C-frame types.
Standards and Approvals
- CSA
- UL
- NEMA
Frequently Asked Questions
What is the difference between single, double and triple-phase motors?
- Single-phase motor: Electricity flows through a single conductor.
- Double-phase motor: Electricity flows through 4-wire conductors (2 for each phase).
- Triple-phase motor: Electricity flows through 3 separate conductors.
What is the purpose of a keyed shaft?
A shaft key is a piece of metal that connects a rotating machine element to the shaft. It enables torque transmission and prevents relative rotation between the two parts.
What does Z, H and C frame construction indicate?
- Z: The frame has a non-standard shaft.
- H: The frame has a set of mounting holes at 3 & 5 inches.
- C: The motor can be face-mounted.
- These letter designations and frame standards are defined by NEMA
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