O002 MARATHON 1/4 HP 1725 RPM 48N Frame Motor – Single Phase, 115V LEESON
The O002 MARATHON General Purpose Motor (Model 48S17S25R) is a reliable ¼ HP single-phase motor designed for consistent performance in HVAC systems, pumps, fans, and industrial machinery. Built with a durable rolled steel 48N frame, thermal protection, and double-shielded ball bearings, it delivers smooth operation, low maintenance, and long-lasting service life.
⚠️ 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
✅ ¼ HP Power – Perfect for small HVAC, fan, and pump applications
✅ 1725 RPM, Single Phase, 115V – Reliable speed and consistent performance
✅ Semi-Enclosed Motor (SEMI) – Protects internal components from dust and debris
✅ Double-Shielded Ball Bearings – Low maintenance and long service life
✅ Thermal Protection – Guards against overheating
✅ Continuous Duty – Designed for reliable operation under load
✅ UL & CSA Certified – Meets North American safety standards
📊 Technical Specifications
| Specification | Detail |
|---|
| Brand |
MARATHON |
| Part Number |
048S17S25 |
| Catalog Number |
O002 |
| Model |
48S17S25R |
| Horsepower |
¼ HP |
| Speed (RPM) |
1725 |
| Frame Size |
48N |
| Voltage |
115V |
| Phase |
Single |
| Frequency |
60 Hz |
| Full Load Amps (FLA) |
3.9 A |
| Motor Type |
Semi-Enclosed (SEMI) |
| Enclosure Type |
48N Frame |
| Mounting Orientation |
Horizontal |
| Rotation |
Selective Clockwise |
| Frame Material |
Rolled Steel |
| Thermal Protection |
Yes |
| Duty Cycle |
Continuous |
| Certifications |
UL Listed / CSA Certified |
| Ambient Temperature |
40°C / 104°F Max |
🧭 Applications
-
HVAC blower and fan systems
-
Small pumps and compressors
-
Conveyors and industrial machinery
-
General-purpose equipment requiring ¼ HP, 1725 RPM motors
⚠️ Common Symptoms / When to Replace
-
Motor hums or fails to start
-
Overheating or tripping thermal protection
-
Excessive vibration or unusual noise
-
Reduced speed or sluggish operation
-
Shaft or housing shows corrosion or damage
❓ Frequently Asked Questions (FAQ)
Q1: What type of motor is this?
A: Semi-Enclosed Induction Motor, single-phase, 115V, with thermal protection.
Q2: Can I use this motor in HVAC or pump applications?
A: Yes, it’s ideal for small HVAC systems, fans, and pumps.
Q3: What is the rotation direction?
A: Selective clockwise; wiring can be adjusted if needed.
Q4: Does it have thermal protection?
A: Yes, the 48N frame thermal protection prevents overheating.
Q5: Is maintenance required?
A: Minimal — ball bearings are double-shielded and the motor is designed for continuous duty.
🛒 Shopping Tips
-
Verify frame size (48N) and shaft dimensions before purchase
-
Confirm voltage and rotation direction for your equipment
-
Ideal replacement for older ¼ HP, 1725 RPM motors
-
Suitable for HVAC, fans, pumps, and general-purpose machinery
