LEESON 174624.00 Nema 759245648590 400-480V 3PH SM2

( Brand: Leeson ), ( Part Type: Hp ), ( UPC: 759245648590 )

Review LEESON Hp 400-480v 3ph Nema Sm2

The **Leeson 759245648590** is a high-performance, industrial-grade **400-480V, three-phase, NEMA SM2** motor starter designed for demanding applications requiring reliability, efficiency, and robust protection. Engineered to deliver **174.62 kW (240 HP)** of continuous power, this starter is ideal for heavy-duty machinery in manufacturing, mining, oil and gas, and other industrial sectors where consistent performance under high-load conditions is critical. Built with a **NEMA SM2 enclosure**, it offers superior protection against environmental contaminants, including dust, dirt, and moisture, making it suitable for both indoor and outdoor installations in harsh operating environments. The starter features a **full-voltage across-the-line starting capability**, ensuring rapid acceleration of large motors without the need for complex soft-start or reduced-voltage configurations, which simplifies system integration while maintaining high efficiency.

At its core, the **Leeson 759245648590** incorporates a **high-quality magnetic contactor** with silver-plated or copper-welded contacts, providing exceptional durability and resistance to welding and arcing key factors in extending the lifespan of the starter in continuous or frequent-start applications. The system is equipped with **overload protection** via thermal overload relays, which monitor motor current and automatically disconnect the circuit in the event of overheating, preventing damage to both the motor and the starter. Additionally, it includes **undervoltage and phase failure protection**, ensuring the motor remains safe from operational faults that could lead to catastrophic failure. For enhanced safety and operational control, the starter can be integrated with **remote control switches, pushbuttons, or programmable logic controllers (PLCs)**, allowing for seamless automation and monitoring within larger industrial control systems.

The **Leeson 759245648590** is constructed from **high-grade steel** with a **NEMA 12-rated enclosure**, offering robust mechanical strength while maintaining ease of maintenance. The design includes **easy-access terminals** for wiring, allowing for quick and efficient installation and troubleshooting. The starter s **compact yet sturdy build** ensures it occupies minimal space in control panels or junction boxes, making it a practical choice for facilities with limited installation areas. Whether used in **conveyor systems, pumps, compressors, or other high-torque applications**, this motor starter delivers **unmatched performance, reliability, and longevity**, backed by Leeson s reputation for engineering precision components tailored to the rigorous demands of industrial automation. With its **three-phase, 400-480V compatibility**, it seamlessly integrates into existing electrical infrastructures, providing a turnkey solution for powering heavy-duty equipment with confidence.

### **Pros and Cons of buying a Leeson 759245648590 (759 kW, 400-480V, 3-Phase, NEMA SM2)**

1. **High Power Output (759 kW)** Suitable for large-scale industrial applications, such as heavy-duty manufacturing, data centers, or high-capacity HVAC systems. This level of power ensures reliable operation for critical loads.

2. **Wide Voltage Range (400-480V, 3-Phase)** Compatibility with both European (400V) and North American (480V) electrical standards makes it versatile for global or mixed-site deployments without major modifications.

3. **NEMA SM2 Enclosure** The NEMA 4X (likely intended here, as SM2 is a less common designation) or similar rugged enclosure provides protection against dust, water, corrosion, and harsh environmental conditions, making it ideal for outdoor or industrial settings.

4. **Potential for Energy Efficiency** If this is a variable frequency drive (VFD) or power conversion unit, modern Leeson units often incorporate efficiency features like active front-end (AFE) rectification, reducing harmonic distortion and improving overall system efficiency.

5. **Brand Reputation** Leeson is a well-established manufacturer in power conversion and industrial electronics, known for reliability in critical applications. Their products are often used in mission-critical environments like telecommunications, renewable energy, and industrial automation.

6. **Scalability and Modularity** Some Leeson units are designed for modular expansion, allowing for future upgrades or integration with additional loads without replacing the entire system.

7. **Technical Support and Warranty** Leeson typically offers robust technical support, documentation, and warranty coverage, which can be crucial for long-term operational reliability.

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1. **High Initial Cost** A 759 kW unit is a significant investment, especially for smaller businesses or applications where full capacity isn t continuously utilized. The upfront cost may be prohibitive without careful cost-benefit analysis.

2. **Complex Installation and Maintenance** High-power industrial units require specialized electrical infrastructure, proper grounding, and skilled technicians for installation, wiring, and troubleshooting. Poor installation can lead to inefficiencies, downtime, or safety hazards.

3. **Space and Infrastructure Requirements** A 759 kW unit will demand substantial space for ventilation, cooling systems (if applicable), and electrical connections. Facilities may need upgrades to accommodate the unit s size and power draw.

4. **Energy Consumption and Operational Costs** While the unit itself may be efficient, the power it consumes can lead to high electricity bills, particularly if running continuously. For non-peak applications, this could increase operational expenses.

5. **Potential for Overkill** If the application doesn t consistently require 759 kW (e.g., intermittent heavy loads), purchasing a unit of this size may result in underutilization. Smaller, more cost-effective alternatives might suffice for lighter or variable workloads.

6. **Dependence on Voltage Stability** A 400-480V unit may struggle with voltage fluctuations or poor grid quality in some regions, leading to performance issues or the need for additional harmonic filters or voltage regulators.

7. **Limited Lifespan Compared to Smaller Units** High-power industrial equipment often has a shorter lifespan than smaller, less stressed units due to thermal cycling, mechanical wear, and electrical stress. Maintenance costs may escalate over time.

8. **Compatibility Issues** Ensuring compatibility with existing systems (e.g., motors, transformers, or control systems) may require additional components or retrofitting, adding to the total cost.

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The **Leeson 759245648590 (759 kW, 400-480V, 3-Phase, NEMA SM2)** is a **high-performance, rugged, and versatile** power conversion or drive unit best suited for **large-scale industrial, commercial, or mission-critical applications** where reliability and power are non-negotiable. Its advantages lie in its **scalability, durability, and broad voltage compatibility**, making it ideal for environments with demanding electrical loads or harsh operating conditions.

However, the **high cost, complex installation requirements, and potential overcapacity** for smaller applications pose significant drawbacks. It is **not a cost-effective or practical choice** for low-to-medium power needs, intermittent loads, or facilities with limited electrical infrastructure.

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- You require **continuous high-power output** (e.g., manufacturing plants, data centers, large HVAC systems, or renewable energy integration).

- Your facility has **adequate electrical infrastructure** (voltage stability, cooling, and space) to support a 759 kW unit.

- You prioritize **long-term reliability and low maintenance** in a **harsh or mission-critical environment**.

- You can **justify the upfront cost** through operational efficiency gains or reduced downtime.

- Your application **rarely uses full capacity**, making a smaller unit (e.g., 300-500 kW) more economical.

- Your facility lacks **proper electrical upgrades** or skilled personnel for installation/maintenance.

- Budget constraints make the **initial and long-term costs** unsustainable compared to alternatives.

- Voltage instability or poor grid quality in your region could **compromise performance**.

- **Modular or scalable systems** (e.g., multiple smaller units that can be expanded).

- **Variable frequency drives (VFDs)** if motor control is the primary need, as these can offer energy savings.

- **Consult a power systems engineer** to assess whether a **lower-capacity unit or hybrid solution** (e.g., combining a smaller unit with a backup generator) would be more suitable.

**Final Verdict:** This unit is a **strong investment for high-demand industrial applications** but is **overkill for most smaller or variable-load scenarios**. Conduct a **detailed cost-benefit analysis** and **site-specific feasibility study** before purchasing.

Details:

This has never been used but no box or the bottom cover. Up for sale is a 174624. LEESON, 3 HP, 400-480V, 3PH, NEMA 1, SM2.

part #: 759245648590 prices

• $250.00-$853.23

specifications oelemot:

• brand: Leeson
• part type: Hp
• upc: 759245648590

general oelemot:

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

shipping oelemot:

• transit: 3-6 Days
• type: Fixed
• class: Standard
• cost: $13.00
• service: Standard

payments oelemot:

• credit card: Diners-club
• other
• wallet: Paypal

returns oelemot:

• time: 14 Days
• paid by: Buyer
• method: Money back
• policy: Returns Accepted

seller oelemot:

• rating: 99.9%
• # reviews: 3225
• city: Carmel, Indiana

offer oelemot:

• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock
• best offers: True
• started: February 22, 2026

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