MARATHON MOTORS 5KH32GNB811AX Pump Motor, 1/3 HP, 60/50 Hz, 120/240V, Split Phase

Marathon Motors 5KH32GNB811AX pump motor is suitable for applications requiring low starting current and moderate torque. Marathon electric pump motors are installed in blowers, fans, grinders, washing machines and centrifugal pumps.

Working Mechanism:

• This motor comes with a rigid base plate for installation on flat surfaces. The base plate has long slits for adjusting the screw installation point.
• It has a single-phase design for easy wiring.
• The motor's shaft can be directly connected to the load for maximum force transmission.

Features:

• This Marathon pump motor features a cradle base for mounting at all angles.
• It has an open drip-proof enclosure for circulating cool air while preventing water droplets from falling into the motor.
• This motor features auto-thermal protection that turns the motor off when excessive heat is generated.
• It has a service factor of 1, providing increased life expectancy.
• Its Class B insulation prevents overheating.

Standards and Approvals:

• UL
• CSA

Frequently Asked Questions:

Q. Are these pump motors suitable for high electrical loads?

A. Yes, their sleeve type bearings offer a high load capacity, thus making these motors suitable for heavy-duty applications. These types of bearings reduce vibrations while absorbing friction during the rotation.

Q. What is the efficiency rating for this pump motor?

A. It is rated at 62 percent nominal efficiency. However, efficiency ratings can vary depending upon the connected load and external conditions.

Q. How do I properly lubricate the bearings of this Marathon 5KH32GNB811AX pump motor?

A.

• Prioritise safety by de-energising the motor and wearing appropriate PPE.
• Locate the bearing lubrication points on the motor.
• Determine the suitable lubricant type based on manufacturer recommendations.
• Ensure cleanliness by removing old grease or dirt from the lubrication points.
• Slowly and evenly apply the recommended lubricant to the points.
• Manually turn the motor's shaft to distribute the lubricant evenly.
• Check for excess grease or oil leakage and wipe away any excess.
• Reassemble components and monitor motor operation.

Q. What are the factors to consider while choosing this Marathon 5KH32GNB811AX pump motor?

A. Major factors include horsepower, voltage, frame size, efficiency and environmental suitability to ensure it meets your specific pump application requirements.

Q. What safety precautions should I take when performing maintenance on this motor?

A.

• Disconnect power and lockout the circuit to prevent accidental startup.
• Wear safety gear like glasses and gloves as recommended.
• Isolate the motor and label it to prevent re-energisation.
• Let the motor cool down if it has been running to avoid burns.
• Keep the area clean and well-lit, minimising tripping hazards.
• Ensure tools are in good condition and suitable for the task.
• Dress appropriately to prevent clothing from getting caught.
• Exercise caution around belts, pulleys and rotating components.
• Familiarise yourself with emergency shutdown procedures.
• Understand the specific risks associated with the motor.
• Collaborate with a colleague for added safety.
• Ensure proper airflow in confined spaces and consider respiratory protection.
• Confirm that maintenance personnel are trained and qualified.
• Have access to first aid supplies and emergency equipment.