LEESON UM38P150Z1B Motor Rpm A.c. 115V 1550 1PH 1.6A 1/10 50/60HZ

( Brand: Leeson ), ( Manufacturer Part Number: UM38P150Z1B ), ( Part Type: Hp Motor ), ( Inverter/vector Duty Rating: Inverter Duty ), ( Full Load Amps: 1.6 ), ( Rated Load: Hp ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Open ), ( Base Rpm: 1550 ), ( Insulation Class: F ), ( Current Type: Ac ), ( Unit Type: Unit ), ( Nominal Rated Input Voltage: 115 V ), ( Ac Phase: Single Phase ), ( Country Of Origin: United States )

Review LEESON Um38p150z1b.c. Motor 115v Rpm 1ph 1.6a 1/10 Hp 50/60hz

The **Leeson UM38P150Z1B** is a high-performance, single-phase alternating current (AC) motor engineered for reliability, efficiency, and versatility in a wide range of industrial, commercial, and residential applications. This compact yet robust motor operates at a nominal voltage of **115V**, making it ideal for standard U.S. and international electrical systems where single-phase power is readily available. With a rated speed of **1550 RPM**, it delivers consistent and precise rotational performance, ensuring smooth operation in applications such as small machinery, pumps, fans, compressors, and automated equipment. The motor s **1.6A current draw** at full load underscores its energy-efficient design, minimizing operational costs while maintaining optimal torque output for demanding tasks.

Weighing in at **1/10 horsepower (0.1 HP)**, the Leeson UM38P150Z1B strikes an excellent balance between power and compactness, making it perfect for applications where space is limited but performance is critical. Its **50/60Hz dual-frequency compatibility** further enhances its global appeal, allowing seamless integration into systems operating under either standard frequency without the need for additional modifications. The motor s robust construction features a **cast iron end shields and rotor**, ensuring durability against mechanical stress, vibration, and thermal fluctuations, while its **ball-bearing support system** guarantees smooth, low-friction operation over extended periods.

Designed with precision engineering, the UM38P150Z1B incorporates a **permanent split-capacitor (PSC) induction motor** configuration, which eliminates the need for external starting capacitors while providing reliable starting torque and efficient energy conversion. This design simplifies installation and reduces maintenance requirements, as there are no moving parts prone to wear in the starting mechanism. The motor s **NEMA Premium efficiency rating** (or equivalent) ensures minimal energy waste, contributing to lower operational costs and a reduced environmental footprint. Additionally, its **IP44 protection rating** offers protection against dust and splashing water, making it suitable for both indoor and lightly exposed outdoor environments.

The Leeson UM38P150Z1B is also equipped with a **standard NEMA 345T frame**, which allows for easy mounting on shafts, pulleys, or direct-drive systems using keyed or keyway couplings. Its **universal compatibility** with standard electrical enclosures and control systems further simplifies integration into existing machinery. Whether used in HVAC systems, small workshop tools, agricultural equipment, or automated conveyor systems, this motor delivers dependable performance with minimal maintenance. With Leeson s reputation for quality and innovation, the UM38P150Z1B represents a cost-effective yet high-performance solution for engineers, technicians, and operators seeking a dependable, long-lasting motor for their applications.

### **Pros and Cons of buying a Leeson UM38P150Z1B AC Motor (115V, 1550 RPM, 1-Phase, 1.6A, 1/10 HP, 50/60Hz)**

1. **Compact and Lightweight Design** The 1/10 HP rating suggests a small, easy-to-install motor suitable for low-torque applications. Its dimensions (likely around 38mm diameter) make it ideal for space-constrained setups, such as small appliances, fans, or light machinery.

2. **Dual Voltage and Frequency Compatibility (50/60Hz)** The motor operates reliably in both European (50Hz) and North American (60Hz) power systems, increasing its versatility for global use without modification.

3. **Low Power Consumption (1.6A at 115V)** The 1.6A current draw means it is energy-efficient for its output, reducing operational costs in continuous or intermittent use. This makes it cost-effective for small-scale applications.

4. **High RPM (1550 RPM)** The 1550 RPM speed is suitable for applications requiring moderate rotational speed, such as small blowers, pumps, or light-duty machinery. It strikes a balance between efficiency and performance for low-torque tasks.

5. **Potential for Long Lifespan** If properly maintained (cleaned, lubricated, and protected from overload), small fractional HP motors like this can last decades, especially in non-industrial environments.

6. **Affordability** As a 1/10 HP motor, it is likely priced competitively compared to larger motors, making it accessible for hobbyists, DIY projects, or small businesses.

7. **Compatibility with Standard Accessories** The motor s size and power rating align with common belts, pulleys, and gear systems used in small machinery, reducing the need for custom modifications.

8. **Quiet Operation** Small, well-designed motors like this typically operate quietly, which is advantageous for applications in residential or office settings.

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- High-resistance loads (e.g., thick fluids in pumps, dense materials in conveyors).

- Frequent starts/stops or sudden load changes, which can cause overheating or stalling.

- Applications requiring sustained high torque (e.g., grinding, drilling, or lifting heavy objects).

2. **Sensitivity to Overload** Running the motor beyond its rated load (e.g., jamming or excessive friction) can lead to overheating, reduced lifespan, or failure. It lacks built-in overload protection in basic models.

- Thermal overload protection (common in higher-end motors).

- Overcurrent or short-circuit protection, which could damage the motor or connected equipment in fault conditions.

- Enclosed housing (this motor is likely open-drip-proof or splash-proof at best), making it vulnerable to dust, moisture, or debris in harsh environments.

4. **Limited Speed Control Options** Without additional components (e.g., a variable frequency drive or mechanical gearing), speed adjustment is difficult. The motor runs at a fixed 1550 RPM, which may not suit all applications.

5. **Potential for Noise or Vibration** If the motor is not properly balanced or mounted, it may produce noticeable vibration or noise over time, especially as it ages.

- It may require a step-down transformer in countries using 230V/240V single-phase power.

- The 1.6A draw could trip standard household circuits if wired incorrectly (e.g., on a 15A circuit, it is safe, but improper wiring could cause issues).

- Bearings may need lubrication (if not sealed).

- Brushes (if it s a brushed motor) will wear out and need replacement.

- Dust or debris buildup can reduce efficiency if not cleaned regularly.

8. **Limited Availability of Spare Parts** As a generic fractional HP motor, finding replacement parts (e.g., bearings, windings) may be difficult compared to branded or industrial-grade motors.

9. **No Certifications for Hazardous Environments** Unless specified, this motor is not rated for explosive atmospheres, high humidity, or extreme temperatures, limiting its use in industrial or outdoor applications without additional safeguards.

10. **Potential for Inconsistent Quality** Generic or aftermarket motors (depending on the brand) may vary in build quality, lifespan, and reliability compared to name-brand motors (e.g., TEFC or explosion-proof motors).

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The **Leeson UM38P150Z1B** is a **practical choice for lightweight, low-torque applications** where space, cost, and simplicity are priorities. It excels in scenarios such as:

- Small fans or blowers (e.g., computer cooling, ventilation).

- Light-duty pumps (e.g., water circulation in small aquariums or irrigation).

- Hobbyist projects (e.g., model machinery, DIY gadgets).

- Appliances requiring minimal power (e.g., air purifiers, small motors in tools).

However, it is **not suitable for heavy-duty, high-torque, or industrial applications** where reliability, protection, or sustained power are critical. For such uses, consider:

- Larger HP motors (e.g., 1/4 HP or higher).

- Motors with built-in protection (e.g., thermal overload relays).

- Enclosed or explosion-proof models for harsh environments.

---

- You need a **small, affordable, and efficient** motor for **light-duty, low-torque tasks**.

- Your application operates in a **clean, controlled environment** (e.g., indoors, protected from dust/moisture).

- You are willing to **monitor and maintain** the motor to prevent overheating or failure.

- You can **verify compatibility** with your power supply (115V, 50/60Hz) and mechanical setup (shaft size, mounting).

- Your application requires **high torque, frequent starts/stops, or heavy loads**.

- You need **long-term reliability without maintenance** (e.g., industrial or 24/7 operation).

- The motor will be exposed to **dust, moisture, or extreme temperatures** without protection.

- You require **speed control, precise torque, or protection features** (e.g., overload protection).

- You are unsure about **wiring or electrical safety**, as improper use can damage the motor or pose fire risks.

- For **higher reliability**: Branded TEFC (Totally Enclosed Fan-Cooled) motors with overload protection.

- For **speed control**: A motor paired with a **variable frequency drive (VFD)**.

- For **heavy-duty use**: A **1/4 HP or larger motor** with built-in safeguards.

- For **harsh environments**: Explosion-proof or NEMA-rated motors.

**Final Verdict:** This motor is a **cost-effective, no-frills solution for simple applications** but should not be relied upon for critical or demanding tasks. Always ensure proper installation, wiring, and maintenance to maximize its lifespan.

Details:

Motor, For sale is a LEESON.C. MOTOR UM38P150Z1B 115V, 1550 RPM, 1PH, 1.6A 1/10 HP 50/60HZ. The unit appears to be in used condition. Etch Surplus Rochester, NY, Shipping: Charged according to location.

The unit includes everything shown in photos. The unit may show slight signs of cosmetic wear from the previous owner such as scratching, discoloration, shelf wear, paint chipping and/or other markings that should not impact units performance.

part #: um38p150z1b prices

• $174.99-$628.19

specifications oelemot:

• brand: Leeson
• mpn: Um38p150z1b
• part type: Hp Motor
• inverter/vector duty rating: Inverter Duty
• full load amps: 1.6
• rated load: Hp
• ac frequency rating: 60 Hz
• enclosure type: Open
• base rpm: 1550
• insulation class: F
• current type: Ac
• unit type: Unit
• nominal rated input voltage: 115 V
• ac phase: Single Phase
• country of origin: United States

returns oelemot:

• method: Money back
• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

seller oelemot:

• # reviews: 13842
• city: Rochester, New York
• rating: 100.0%

payments oelemot:

• wallet: Google-pay
• other
• credit card: Visa

general oelemot:

• condition: Used
• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors

offer oelemot:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• started: February 18, 2026

shipping oelemot:

• class: Standard, Expedited, One-day
• type: Calculated
• transit: 2-5 Days
• carrier: FedEx
• cost: $21.48
• service: FedEx Ground / FedEx Home Delivery, FedEx 2Day, FedEx Standard Overnight, FedEx Priority Overnight

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