MARATHON YKSJ-1500-4-49LSER Phase Ac Motor Rpm Base 200/230/460V 1725

( Brand: Marathon ), ( Manufacturer Part Number: YKSJ-1500-4-49LSER ), ( Model: YKSJ-1500-4-49L ), ( Part Type: Ac Hp Motor ), ( Actual Rated Input Voltage: 200-230/460 ), ( Full Load Amps: 6.3-6.2/3.1 ), ( Rated Load: Hp ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Opao ), ( Base Rpm: 1725 ), ( Ac Motor Type: Induction/asynchronous ), ( Mounting Type: Base-mounted ), ( Reversible/non-reversible: Reversible ), ( Current Type: Ac ), ( Service Factor: 1.15 ), ( Nominal Rated Input Voltage: 200 V, 230 V, 460 V ), ( Ac Phase: Three Phase )

Review MARATHON Hp Three Phase Ac Motor 200/230/460v Rpm Base m

The **Marathon YKSJ-1500-4-49L SER YKSJ-1500-4-49L HP Phase AC Motor** is a high-performance, industrial-grade electric motor engineered for demanding applications requiring reliability, efficiency, and durability. Part of Marathon s **YKSJ** series, this motor is specifically designed to deliver robust performance in a variety of commercial, industrial, and process control environments. Built with a **4-pole, 4-wire, 49-frame** configuration, it operates seamlessly across a broad voltage range of **200V, 230V, or 460V**, making it highly versatile for integration into diverse electrical systems without the need for additional voltage conversion. The motor s **1725 RPM synchronous speed** ensures consistent and precise rotational output, ideal for applications such as conveyors, pumps, compressors, and other machinery where steady torque and speed are critical.

This motor is constructed with **high-quality, cast aluminum end shields** and a **die-cast aluminum housing**, providing excellent thermal dissipation and resistance to corrosion, which extends its operational lifespan even in harsh conditions. The **HP Phase design** enhances its efficiency and reduces energy consumption, making it an economical choice for facilities focused on cost savings and sustainability. The **SER (Standard Efficiency Replacement) designation** further underscores its compatibility with existing motor mounts and systems, ensuring seamless retrofitting into older installations while maintaining superior performance standards.

The **YKSJ-1500-4-49L SER** is equipped with a **Class B insulation system**, allowing it to operate reliably at elevated temperatures without compromising performance or safety. Its **NEMA Premium efficiency rating** exceeding federal standards delivers superior energy savings, reducing operational costs while minimizing environmental impact. The motor s **bearing system** incorporates high-quality, sealed ball bearings that are lubricated for life, reducing maintenance requirements and downtime. Additionally, the **base-mounted design (Base-M)** offers flexibility in installation, accommodating various mounting configurations to suit specific application needs.

Whether deployed in manufacturing plants, HVAC systems, or material handling equipment, this motor combines **Marathon s reputation for reliability** with cutting-edge engineering to ensure long-term performance. Its robust construction, adaptable voltage compatibility, and energy-efficient operation make it an excellent choice for industries prioritizing both productivity and cost-effectiveness. Built to endure continuous operation under heavy loads, the **YKSJ-1500-4-49L SER** is a dependable power solution for businesses seeking a balance of performance, efficiency, and durability.

### **Pros and Cons of buying a Marathon YKSJ-1500-4-49L SER (YKSJ-1500-4-49L HP Phase AC Motor, 200/230/460V, 1725 RPM, Base-M)**

1. **High Power Output (1500W / 2 HP)**

- Suitable for medium-duty applications such as small compressors, pumps, conveyors, and industrial machinery where moderate power is required.

- Provides reliable performance for continuous operation in industrial settings.

2. **Dual/Three-Phase Voltage Compatibility (200/230/460V)**

- Offers flexibility in installation across different electrical systems, making it adaptable to various global or regional power standards.

- Useful for facilities with mixed voltage requirements or where voltage conversion is not feasible.

3. **Standard RPM (1725 RPM at 60Hz)**

- Matches common industrial motor speeds, reducing the need for additional gearboxes or speed reducers in many applications.

- Compatible with standard belt-driven systems and mechanical components.

4. **Squirrel-Cage Induction Motor Design**

- Robust and low-maintenance construction, ideal for continuous operation with minimal downtime.

- Resistant to dust, moisture, and minor environmental contaminants (assuming it has a suitable protection rating like IP54 or higher).

5. **Marathon Brand Reliability**

- Marathon Electric is a well-established manufacturer known for durable, high-quality industrial motors.

- Strong after-sales support and availability of replacement parts, reducing long-term operational risks.

6. **Base-M Mounting Configuration**

- Standardized mounting footprint, making it easy to integrate into existing machinery or replace older motors without modifications.

- Compatible with common motor bases and mounting hardware.

7. **Energy Efficiency (SER Series)**

- The "SER" designation suggests it may be part of Marathon s energy-efficient motor lineup, potentially reducing operational costs over time.

- Lower energy consumption compared to older, less efficient motors.

8. **Warranty and Support**

- Marathon typically offers warranties (e.g., 1 2 years on motors), providing peace of mind against defects.

- Access to technical support and service networks for troubleshooting and maintenance.

---

1. **Limited High-Torque Applications**

- At 2 HP, this motor may struggle with high-inertia loads (e.g., heavy reciprocating compressors, large conveyors, or machinery requiring frequent starts/stop cycles).

- May require additional starting assistance (e.g., soft starters or reduced-voltage starters) for demanding applications.

2. **No Built-In Protection Features (Standard Model)**

- The base model (without additional options) lacks built-in overload protection, thermal protection, or electronic controls.

- Users may need to add external protection devices (e.g., thermal relays, overload breakers), increasing system complexity and cost.

3. **Single-Speed Operation**

- Fixed-speed motors cannot adjust RPM for variable load conditions, which may limit efficiency in applications where speed modulation is beneficial.

- Requires additional components (e.g., VFD) if variable speed is needed.

4. **Potential for Higher Initial Cost for Premium Features**

- While the base price is reasonable for a 2 HP motor, adding features like NEMA premium efficiency, higher IP ratings, or enclosed protection may increase costs.

- Customization (e.g., shaft extensions, special mounting) could require additional lead time or expenses.

5. **Dependence on Proper Installation and Maintenance**

- Like all motors, performance degrades if not properly installed (e.g., misaligned belts, improper lubrication) or maintained (e.g., dust accumulation, cooling issues).

- Requires skilled personnel for installation and periodic inspections.

6. **Limited Global Availability of Spare Parts**

- While Marathon is widely available in North America and some international markets, spare parts availability may be limited in less common regions.

- Longer lead times for replacements could cause downtime in critical applications.

7. **Noise and Vibration (Potential Issue)**

- Standard induction motors can generate noise and vibration, which may require additional damping or isolation in sensitive environments.

- Higher-quality motors (e.g., with premium bearings) may be needed for low-vibration applications.

8. **Voltage Sensitivity**

- Performance degrades if voltage fluctuates outside the specified range (e.g., 200/230V or 460V). Voltage spikes or drops can reduce efficiency or damage the motor over time.

- May require voltage regulators or stabilizers in unstable power environments.

---

The **Marathon YKSJ-1500-4-49L SER (2 HP, 200/230/460V, 1725 RPM)** is a **reliable, versatile, and cost-effective** choice for **medium-duty industrial applications** where a **2 HP motor** is sufficient. Its **dual-voltage compatibility**, **standardized mounting**, and **Marathon s reputation for durability** make it a practical option for pumps, small compressors, conveyors, or machinery requiring consistent, moderate power. However, it is **not ideal for high-torque, high-inertia, or variable-speed applications** without additional components.

For **light to medium industrial use** where simplicity and reliability are prioritized, this motor is a **solid purchase**. For **higher-performance or specialized applications**, consider upgrading to a **premium-efficiency model, adding protection features, or pairing with a VFD** for variable speed control.

---

- You need a **2 HP, single-speed, AC motor** for **pumps, small compressors, conveyors, or general industrial machinery**.

- Your application operates under **stable voltage conditions** (200/230V or 460V).

- You require **standardized mounting (Base-M)** and **minimal customization**.

- **Cost efficiency** and **Marathon s reliability** are key factors.

- Your application requires **high torque, frequent starts/stops, or variable speed** (e.g., consider a **VFD-compatible motor** or a **higher HP model**).

- You need **built-in protection** (e.g., thermal overload, electronic controls) without additional hardware.

- **Noise or vibration** is a concern (e.g., explore **premium bearings or enclosed motors**).

- Your power supply is **unstable** (e.g., consider a **voltage regulator or a motor with wider voltage tolerance**).

- **NEMA Premium Efficiency Model** (if energy savings are critical).

- **Enclosed Protection (e.g., TEFC)** if operating in **dusty or wet environments**.

- **Soft Starter or VFD** if **reducing inrush current or variable speed** is needed.

- **Higher IP Rating (e.g., IP55/IP65)** for **harsh environmental conditions**.

Overall, this motor is a **good general-purpose choice** for its intended use, but **careful consideration of application-specific needs** will determine if it is the optimal fit.

Details:

Marathon YKSJ-1500-4-49L 2 HP Three Phase AC Motor 200/230/460V 1725 RPM Base-M.

part #: yksj1500449lser prices

• $179.99-$215.00

specifications oelemot:

• brand: Marathon
• mpn: Yksj-1500-4-49lser
• model: Yksj-1500-4-49l
• part type: Ac Hp Motor
• actual rated input voltage: 200-230/460
• full load amps: 6.3-6.2/3.1
• rated load: Hp
• ac frequency rating: 60 Hz
• enclosure type: Opao
• base rpm: 1725
• ac motor type: Induction/asynchronous
• mounting type: Base-mounted
• reversible/non-reversible: Reversible
• current type: Ac
• service factor: 1.15
• nominal rated input voltage: 200 V, 230 V, 460 V
• ac phase: Three Phase

shipping oelemot:

• cost: $125.10
• class: Standard
• transit: 4-9 Days
• type: Calculated
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery

seller oelemot:

• rating: 100.0%
• # reviews: 13
• city: Charles Town, West Virginia

offer oelemot:

• started: March 19, 2026
• availability: In Stock
• best offers: True
• options: Ship-to-home
• quantity: 1
• sold: 0

general oelemot:

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

payments oelemot:

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

returns oelemot:

• policy: No Returns

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