SQUARE D Coil L2959S49W37A 440/480V

( Brand: Square D ), ( Manufacturer Part Number: L2959 ), ( Model: L2959 S49 W37A L2959S49W37A ), ( Part Type: 480v Coil ), ( Country Of Origin: United States )

Review SQUARE D Squarel2959 S49 W37a 440/480v Coil

The **Square L2959 S49 W37A (440/480V Coil)** is a high-performance, industrial-grade motor starter designed for robust and reliable control of three-phase induction motors in demanding applications. Engineered with precision and durability in mind, this compact yet powerful device combines advanced thermal and overload protection with seamless electrical switching capabilities, making it an ideal solution for commercial, industrial, and heavy-duty environments. The L2959 series features a square enclosure, offering a space-efficient design that maximizes panel or control room utility without compromising functionality. Its robust construction ensures resistance to mechanical stress, vibration, and environmental factors, ensuring consistent performance even in harsh operating conditions.

At the heart of this motor starter is the **L2959S49W37A**, a model optimized for compatibility with **440V or 480V three-phase AC systems**, delivering a reliable and efficient means of starting, stopping, and protecting motors in applications such as pumps, compressors, conveyors, and HVAC systems. The **S49** designation indicates a specific frame size, balancing compactness with sufficient current-carrying capacity, while the **W37A** coil voltage rating ensures seamless integration with standard industrial control systems. This starter employs a **magnetic contactor** mechanism, providing fast and precise switching with minimal wear, while its integrated overload relay offers thermal protection to prevent motor damage from overloads, short circuits, or stalled conditions. The overload relay is adjustable, allowing for fine-tuning to match the specific requirements of the connected motor, ensuring optimal performance and longevity.

The **440/480V coil** designates the voltage required to energize the starter s coil, enabling it to engage the contactor and close the circuit, while its **square form factor** enhances installation flexibility, allowing for easier mounting in confined spaces or alongside other control components. Constructed from high-quality materials, including insulated and corrosion-resistant components, this motor starter is built to withstand prolonged use in environments with varying temperature, humidity, and electrical fluctuations. Its **NEMA 1 or NEMA 3R enclosure** (depending on the specific variant) provides additional protection against dust, moisture, and accidental contact, making it suitable for both indoor and outdoor applications. The starter s **low contact resistance** and **high breaking capacity** ensure reliable operation even under heavy loads, reducing the risk of arcing or failure during frequent start-stop cycles.

For enhanced safety and operational efficiency, the L2959 series incorporates **auxiliary contacts**, which can be used for signaling, interlocking, or remote monitoring, while its **modular design** allows for easy integration with programmable logic controllers (PLCs), relays, or other control systems. The starter s **quick-release terminals** simplify wiring and maintenance, reducing downtime and ensuring a streamlined installation process. Whether deployed in manufacturing plants, commercial buildings, or industrial facilities, the **Square L2959 S49 W37A (440/480V Coil)** delivers a dependable, high-performance solution for motor control, combining durability, precision, and adaptability to meet the diverse needs of modern industrial automation.

### Pros and Cons of buying a Square L2959 (L2959S49W37A/S49W37A) 440/480V Coil

1. **High Voltage Compatibility** The coil is designed for 440/480V systems, making it suitable for industrial, commercial, or high-power applications where standard 240V coils may not suffice. This flexibility ensures broader compatibility with existing infrastructure.

2. **Square D Brand Reliability** Square D is a well-established brand under Schneider Electric, known for manufacturing high-quality electrical components. Their products often come with robust warranties and reliable performance, reducing long-term maintenance concerns.

3. **Durability and Robust Construction** Coils in this category are typically built to withstand harsh environments, including temperature fluctuations, vibration, and electrical surges. This makes them ideal for industrial settings where reliability is critical.

4. **Compatibility with Control Systems** The L2959 series is designed to integrate seamlessly with Square D s control panels, relays, and other electrical systems. This ensures smoother operation and easier troubleshooting if issues arise.

5. **Energy Efficiency** Modern coils, including this model, are often designed with energy-efficient materials and construction, which can reduce operational costs over time by minimizing energy loss.

6. **Wide Availability of Replacement Parts** As a legacy or commonly used model, replacement parts, manuals, and technical support are likely to be readily available, even if the original manufacturer is no longer actively producing this exact part.

7. **Long Lifespan** High-quality coils like this one are engineered for longevity, potentially lasting decades with proper maintenance, which is cost-effective in the long run.

8. **Safety Features** Many Square D coils include built-in safety mechanisms such as overcurrent protection or thermal monitoring to prevent failures that could lead to equipment damage or safety hazards.

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1. **Age of the Model** The L2959 series may be an older design, which could mean it lacks the latest advancements in efficiency, digital diagnostics, or smart features found in newer models. This might limit integration with modern control systems or IoT platforms.

2. **Potential Obsolescence** While Square D remains a reliable brand, some older models may eventually be discontinued. This could make future repairs or replacements more difficult or expensive if parts become scarce.

3. **Higher Upfront Cost** Compared to generic or aftermarket coils, Square D products often come at a premium price. If budget is a constraint, this could be a significant drawback.

4. **Limited Smart Features** Older coils may lack features like remote monitoring, predictive maintenance alerts, or digital diagnostics. If your application requires advanced control or data logging, you may need to pair this coil with additional equipment.

5. **Installation Complexity** High-voltage coils like this one require careful handling, proper grounding, and adherence to electrical codes. Improper installation could lead to safety hazards or reduced performance. This may necessitate hiring a licensed electrician, adding to costs.

6. **Maintenance Requirements** While durable, coils still require periodic maintenance, such as cleaning, testing, and lubrication (if applicable). Neglecting maintenance could shorten the coil s lifespan or lead to unexpected failures.

7. **Compatibility Issues with Modern Systems** If your facility is upgrading to smart grids, energy management systems, or automated controls, an older coil may not integrate as smoothly as a newer, more modular unit.

8. **Lead Times for Replacement** Even for a reputable brand, older parts can sometimes have longer lead times for replacements, which could disrupt operations if a failure occurs.

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The Square D L2959 (L2959S49W37A/S49W37A) 440/480V coil is a robust, reliable choice for applications requiring high-voltage compatibility and industrial-grade performance. Its durability, brand reputation, and compatibility with Square D s ecosystem make it a strong option for legacy systems or environments where reliability is paramount. However, its age and lack of modern features may pose challenges if you re looking for smart capabilities, long-term scalability, or cost efficiency in the context of newer technology.

If your primary needs are **reliability, longevity, and compatibility with existing Square D systems**, this coil is a solid investment. However, if you prioritize **energy efficiency, smart features, or future-proofing**, you may want to consider a newer model or a more advanced coil with digital diagnostics.

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- You are maintaining or upgrading an existing Square D system where this coil is a direct replacement.

- Your application requires 440/480V and demands high reliability in a harsh environment.

- You have access to technical support and can ensure proper installation and maintenance.

- Budget constraints allow for the premium price of a branded, high-quality coil.

- You need smart features, remote monitoring, or integration with modern control systems.

- Your facility is transitioning to energy-efficient or IoT-enabled infrastructure.

- You want to explore cost-effective aftermarket options or newer models with improved efficiency.

- You anticipate frequent replacements or upgrades, and you d prefer a more scalable solution.

For most industrial or commercial applications where legacy compatibility is critical, the L2959 remains a **sound choice**. However, always verify compatibility with your specific control panel and system requirements before purchasing. Consulting with an electrician or Square D technical support can also help ensure you re making the right decision for your needs.

Details:

Condition: used. L2959 S49 W37A.

part #: l2959 prices

• $55.99-$109.80

specifications automationjack:

• brand: Square D
• mpn: L2959
• model: L2959 S49 W37a L2959s49w37a
• part type: 480v Coil
• country of origin: United States

general automationjack:

• condition: Used
• Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment

offer automationjack:

• availability: In Stock
• started: May 14, 2026
• sold: 0
• options: Ship-to-home
• quantity: 3

shipping automationjack:

• class: Standard, Expedited, One-day
• type: Calculated
• transit: 3-6 Days
• service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air
• cost: $17.56
• carrier: UPS

payments automationjack:

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

seller automationjack:

• # reviews: 4619
• city: Arvada, Colorado
• rating: 100.0%

returns automationjack:

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

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