Marathon O214 Electric Motor – 3/4 HP, 3450 RPM, 56C Frame, 1-Phase, 115/208-230V
The Marathon O214 (Model 56C34D2104F) is a high-performance, reliable 3/4 HP motor ideal for a wide variety of industrial and commercial applications. Designed for continuous-duty operation, this single-phase, drip-proof motor delivers consistent power at 3450 RPM and features automatic thermal protection for safe, long-lasting operation.
⚠️ Note: Marathon small-frame motors below 182T are now manufactured under the LEESON brand, maintaining the same quality, plant, and technical support.
✅ Key Features
✅ 3/4 HP (0.75 HP) output – high torque performance for medium-duty applications
✅ 3450 RPM speed – reliable high-speed operation
✅ 56C frame – industry-standard compact motor frame
✅ Single-phase 115/208-230V, 60Hz – versatile for residential and commercial use
✅ Drip-proof enclosure – protects motor from moisture and debris
✅ Automatic thermal protection – safeguards motor against overheating
✅ Double-shielded ball bearings – extended life and reduced maintenance
✅ Continuous or continuous air-over duty – consistent operation at rated power
✅ UL and CSA certified – meets North American safety standards
✅ Selective counterclockwise rotation – flexible installation options
📊 Nameplate Specifications
| Feature | Specification |
|---|
| Part Number |
56C34D2104 |
| Catalog Number |
O214 |
| Model Number |
56C34D2104F |
| Horsepower |
3/4 HP (0.75 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 |
| Shaft Type |
T |
| Rotation |
Selective Counterclockwise |
⚠️ Common Symptoms of Motor Issues
-
Motor fails to start or runs intermittently
-
Unusual noise, vibration, or humming
-
Overheating or tripping thermal protection
-
Reduced torque or performance under load
-
Bearing wear or shaft wobble
Regular inspection and proper voltage supply ensure long motor life and reliable operation.
❓ Frequently Asked Questions (FAQ)
Q: Can this motor be used in HVAC and pump applications?
A: Yes — it’s suitable for pumps, fans, conveyors, material handling, HVAC systems, and more.
Q: Is the motor UL and CSA certified?
A: Yes — this motor carries both UL recognition and CSA certification for safe operation.
Q: What does “drip-proof enclosure” mean?
A: It protects the motor from water or light debris, suitable for most indoor and light outdoor applications.
Q: Are small Marathon motors still available?
A: Yes — motors below 182T frame are now sold under the LEESON brand, manufactured to the same specifications.
Q: What rotation does this motor support?
A: It supports selective counterclockwise rotation for flexible installation.
🛒 Shopping Tips
-
✅ Verify voltage and phase match your system requirements (115/208-230V, 1-Phase)
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✅ Confirm the shaft type and rotation before installation
-
✅ Use in continuous-duty applications to maximize motor life
-
✅ Check ambient temperature ratings for your environment (up to 40°C / 104°F)
