Marathon Regal Rexnord Marathon E158B Electric Motor 5HP 1800RPM 230/460V 184JM Frame - E158B

Marathon  Regal Rexnord Marathon E158B Electric Motor 5HP 1800RPM 230/460V 184JM Frame - E158B

The Regal Rexnord Marathon E158B Electric Motor delivers robust performance for industrial applications. Engineered for durability, this motor is ideal for equipment and machinery in manufacturing, conveyor systems, and HVAC systems.

Product Highlights

This motor is designed for a continuous operations cycle ensuring reliability in critical applications. Its frame size 184JM allows for compact installation in various settings

Features

• 5 HP power capacity handles demanding operations.
• 1800 RPM speed ensures efficient performance.
• Accepts dual voltage (230/460V) for versatile installation.

.Specifications

What our Experts Think

• Reliable Power: Delivers 5 HP at 1800 RPM, suitable for demanding industrial applications.

• Voltage Compatibility: Operates on 230/460V, 3-phase power, accommodating various electrical systems.

• Durable Construction: Features a 184JMV frame with a drip-proof enclosure, providing protection against dust and moisture while ensuring ventilation.

• Inverter Ready: Compatible with variable frequency drives (VFDs), supporting a 10:1 variable torque and 2:1 constant torque speed range.

• Thermal Protection: Equipped with Class F insulation and a service factor of 1.15, ensuring reliable operation under varying loads.

Q&A

Q: What is the Marathon E158B motor used for?
The E158B is a 5 HP, three-phase motor designed for close-coupled pump applications, where the pump impeller is mounted directly on the motor shaft.

Q: What are the motor’s electrical specifications?
It operates at 230/460 V, three-phase, with a speed of 1755 RPM.

Q: What type of enclosure does the motor have?
The motor features an Open Drip Proof (ODP) enclosure, suitable for clean and dry indoor environments.

Q: What is the frame size of the motor?
This motor uses a 184JMV frame. 

Q: What is the service factor of the motor?
The motor has a service factor of 1.15, allowing for brief overloads up to 15% above rated load.

Q: What is the efficiency of the motor?
The motor operates with an efficiency of approximately 89.5%

Q: What is the weight of the motor?
The motor weighs approximately 84 lbs (38.1 kg).

Maintenance Tips

• Regular Cleaning: Keep the motor's exterior clean and free from dust and debris to ensure optimal heat dissipation and prevent overheating.

• Ventilation: Ensure that the motor's ventilation openings are unobstructed to maintain proper airflow and cooling.

• Bearing Inspection: Periodically check the ball bearings for signs of wear or noise. While the bearings are permanently lubricated, any unusual sounds may indicate the need for replacement.

• Electrical Connections: Inspect all electrical connections for tightness and signs of corrosion. Loose or corroded connections can lead to voltage drops and motor inefficiency.

• Mounting and Alignment: Verify that the motor is securely mounted and properly aligned with the driven equipment to prevent undue stress on the motor shaft and bearings.

• Operating Environment: Ensure the motor operates within its specified ambient temperature range (up to 40°C) and is protected from exposure to moisture and corrosive substances.

• Overload Protection: Since the motor lacks built-in thermal protection, consider installing external overload protection devices to safeguard against overheating due to excessive load conditions.

• Routine Testing: Conduct regular performance tests, including checking voltage and current draw, to ensure the motor operates within its rated specifications.