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Product Description
The Marathon MK004A is a three-phase general-purpose motor designed for various industrial applications. It features a one horsepower design and operates at a speed of one thousand seven hundred twenty-five RPM. This motor is known for its durable rolled steel construction and a rigid base for secure mounting.
- Rated for three-phase voltage of two hundred thirty to four hundred sixty volts
- ODP enclosure type for improved cooling
- Amperage rating of three point zero for two hundred thirty volts and one point five for four hundred sixty volts
Product Highlights
Marathon's MK004A motor is ideal for HVAC systems, manufacturing equipment, and other machinery requiring reliable performance.
Product Information
Standard Information
- Motor Type: General Purpose
- Phase: Three
Features:
- Three Phase
- Auto Protector
- Class B Insulation
- Double Sealed Ball Bearing
- Reversible
- 40[DEG]C Ambient
- Service Factor: 1.15
Compatibility & Applications:
- Intended for HVAC applications that require a dual run capacitor with 30/5 MFD and 440/370V ratings .
- Must only be used where the manufacturer specifies this exact part number: 12781.
Installation & Operation Notes:
- Installation should be performed by a qualified HVAC technician.
- Reference the controlled equipment's service/installation manual to confirm the required capacitor ratings and proper terminal connections before energizing the system.
- The provided sources do not include detailed wiring diagrams or safety procedures; follow equipment documentation and standard capacitor handling practices appropriate for HVAC service.
Maintenance & Troubleshooting:
- This capacitor is typically replaced when diagnostics indicate a run capacitor is out of specification or when motor operation issues are traced to the dual run capacitor (diagnostic procedures are not provided in the supplied sources).
- If issues persist after replacement, confirm the installed capacitor matches the required MFD and voltage ratings and that all connections are correct per the equipment documentation.
Certifications & Compliance:
- Manufacturer listing states UL & cUL for these capacitors.
User Reviews & Q&A Summary:
- Review themes commonly describe it as a correct replacement capacitor that restores cooling operation when a failed capacitor is replaced.
- Many comments focus on getting the right part quickly and returning equipment to service, with frequent notes about straightforward replacement once the correct rating is confirmed.
Product Highlights
115/208-230v       
1725 RPM Â Â Â Â Â Â Â 
CW/CCW Â Â Â Â Â Â Â 
1 HP Â Â Â Â Â Â Â 
Resilient Base        
14.4 AmpsSpecs
| Amperage: | 14.4 |
|---|---|
| Type: | Fan & Blower |
| RPM: | 1725 |
| Horse Power: | 1 |
| Voltage: | 115/208-230v |
| Phase: | 1 |
| Mount: | Resilient Base |
| Bearings: | Ball |
| Frame: | 56Z |
| Rotation: | CW/CCW |
| Enclosure Type: | Drip Proof |
| Motor: | Capacitor Start/Induction Run |
| Poles: | 4 |
| Duty: | Continuous |
| Speeds: | 1 |
| Insulation Class: | B |
| Max Ambient Temp (°F): | 104°F |
| Motor Orientation: | Any |
| Overload Protection: | Automatic |
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