Marathon O210 Electric Motor – 1/3 HP, 3450 RPM, 56C Frame, 1-Phase, 115/208-230V
The Marathon O210 Motor (Model 56C34D2114F) is a high-performance, reliable 1/3 HP single-phase motor designed for industrial, commercial, and residential applications. With a capacitor-start induction-run design, drip-proof enclosure, automatic thermal protection, and continuous-duty operation, it delivers consistent 3450 RPM performance for applications such as fans, pumps, conveyors, and HVAC systems.
⚠️ Note: Small-frame motors below 182T, including this model, are now manufactured under the LEESON brand, maintaining the same quality, plant, and technical support.
✅ Key Features
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1/3 HP (0.33 HP) output – ideal for light to medium-duty applications
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3450 RPM speed – high-speed operation for efficient mechanical power
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56C frame – compact, industry-standard design for versatile installation
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Single-phase 115/208-230V, 60Hz – suitable for most commercial and residential systems
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Capacitor-start induction-run – ensures reliable startup and smooth operation
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Drip-proof enclosure – protects against moisture and debris
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Automatic thermal protection – safeguards motor from overheating
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Double-shielded ball bearings – extended life and reduced maintenance
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Continuous-duty operation – ensures reliable performance at rated power
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UL recognized and CSA certified – meets North American safety standards
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Selective counterclockwise rotation – flexible installation
📊 Nameplate Specifications
| Feature | Specification |
|---|
| Part Number |
56C34D2114 |
| Catalog Number |
O210 |
| Model Number |
56C34D2114F |
| Horsepower |
1/3 HP (0.33 HP) |
| Phase |
1 |
| Voltage |
115 / 208-230 V |
| Frequency |
60 Hz |
| Speed |
3450 RPM |
| Frame |
56C |
| Poles |
2 |
| Thermal Protection |
Automatic |
| Number of Speeds |
1 |
| Enclosure |
Drip Proof |
| Ambient Temperature |
40°C / 104°F |
| Electrical Type |
Capacitor Start Induction Run |
| Mounting |
Round |
| Frame Material |
Rolled Steel |
| Rotation |
Selective Counterclockwise |
| Motor Orientation |
Horizontal |
| Shaft Extension |
2.06 in |
| Efficiency |
64% |
| Current |
5.6/2.7-2.8 A |
⚠️ Common Symptoms of Motor Issues
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Motor fails to start or runs intermittently
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Unusual humming, vibration, or noise
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Tripping of thermal protection due to overheating
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Reduced torque or inconsistent operation under load
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Bearing wear or shaft wobble
❓ Frequently Asked Questions (FAQ)
Q: What applications is the Marathon O210 motor suitable for?
A: Fans, pumps, conveyors, HVAC systems, and other light to medium-duty industrial or commercial equipment.
Q: Is this motor UL and CSA certified?
A: Yes, it carries UL recognition and CSA certification for safety and compliance.
Q: What does “capacitor-start induction-run” mean?
A: This design provides smooth startup and efficient continuous operation, ideal for single-phase applications.
Q: What rotation does this motor support?
A: Selective counterclockwise rotation for flexible installation options.
Q: Can it run continuously at rated power?
A: Yes, it is designed for continuous-duty operation at rated horsepower.
🛒 Shopping Tips
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✅ Verify voltage and phase (115 / 208-230V, 1-phase) before ordering
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✅ Confirm shaft extension and rotation for proper fit
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✅ Ensure proper ventilation and ambient temperature (up to 40°C / 104°F)
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✅ Continuous-duty design suitable for consistent, long-term use
