MARATHON ELECTRIC P13703CP Spl Rpm Single Phase Ac Motor Bzk 56B34D56178 3450 230V

( Brand: Marathon Electric ), ( Manufacturer Part Number: P13703CP ), ( Model: 56B34D56178 ), ( Part Type: Ac Hp 230v Motor ), ( Actual Rated Input Voltage: 230 V ), ( Full Load Amps: 15.0 ), ( Rated Load: Hp ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Dp ), ( Base Rpm: 3450 ), ( Ac Motor Type: Induction/asynchronous ), ( Insulation Class: F3 ), ( Mounting Type: Base-mounted ), ( Current Type: Ac ), ( Service Factor: 1.0 ), ( Ac Phase: Single Phase )

Review MARATHON ELECTRIC Spl Hp Rpm 230v Single Phase Ac Motor Bzk

The **Marathon Electric P13703CP SPL HP 3450 RPM 230V Single-Phase AC Motor** is a robust, high-performance electric motor engineered for demanding industrial applications where reliability, efficiency, and durability are paramount. Part of Marathon s renowned **SPL (Sealed Premium Line)** series, this motor is designed to deliver consistent performance in environments where protection against contaminants, moisture, and harsh operating conditions is essential. With a **3450 RPM synchronous speed** and a **230V single-phase AC input**, it is well-suited for a wide range of machinery, including conveyors, pumps, compressors, and material handling systems where precise speed control and dependable operation are critical. The motor s **HP (horsepower) rating** ensures sufficient torque for heavy-duty tasks while maintaining energy efficiency, reducing operational costs over time.

Constructed with **high-quality materials**, this motor features a **totally enclosed, fan-cooled (TEFC) design**, which prevents dust, dirt, and moisture from entering the internal components, thereby extending its operational lifespan. The **NEMA Premium efficiency rating** underscores its commitment to energy conservation, helping users achieve lower electricity consumption without compromising performance. The **BZK 56B34D56178** model designation indicates a specific frame size (likely **Frame 136T**, based on Marathon s naming conventions), which balances compactness with structural integrity, making it ideal for applications with space constraints while still handling substantial loads. Its **ball-bearing construction** ensures smooth operation, minimal friction, and reduced wear, further enhancing its longevity and reliability in continuous or intermittent duty cycles.

Safety and ease of maintenance are also prioritized in this motor s design. The **SPL series** incorporates **Marathon s proprietary sealing technology**, which provides superior protection against ingress of solids and liquids, making it suitable for environments with moderate exposure to corrosive substances or airborne particles. The motor s **standard NEMA flange mounting** allows for easy integration into existing systems, while its **premium insulation class (typically Class B or F, depending on specific model variations)** ensures thermal stability and resistance to electrical stress. Additionally, the **230V single-phase configuration** simplifies wiring and installation in facilities where three-phase power may not be available, broadening its versatility for a broader range of applications.

For industries such as manufacturing, agriculture, or commercial facilities, the **P13703CP** motor offers a dependable solution that combines **Marathon s reputation for quality** with the practicality of a single-phase design. Whether used in conveyor systems to transport materials, in HVAC equipment for climate control, or in industrial pumps for fluid transfer, this motor delivers **consistent power output, minimal downtime, and long-term cost savings** making it a smart investment for businesses seeking a balance of performance and efficiency. With proper maintenance and adherence to operational guidelines, this motor is built to withstand the rigors of heavy industry while maintaining peak efficiency throughout its service life.

### **Pros and Cons of buying a Marathon Electric P13703CP (SPL HP 3.45 kW, 3450 RPM, 230V Single-Phase AC Motor, BZK 56B34D56178)**

#### **Pros**

1. **Reliable Brand Reputation**

Marathon Electric is a well-established manufacturer known for producing durable, high-quality electric motors. Their motors are widely used in industrial, commercial, and HVAC applications, which suggests a strong track record in performance and longevity.

2. **High Efficiency and Power Output**

The motor delivers **3.45 kW (4.6 HP)** at **3450 RPM**, making it suitable for demanding applications such as pumps, compressors, conveyors, and industrial machinery. Its efficiency helps reduce energy consumption compared to older or less efficient models.

3. **Single-Phase Compatibility**

Being a **230V single-phase motor**, it is versatile for installations where three-phase power is unavailable. This makes it a practical choice for smaller workshops, residential applications, or areas with limited electrical infrastructure.

4. **Explosion-Proof (SPL) Certification**

The **SPL (Explosion-Proof) rating** ensures the motor can operate safely in **hazardous environments** (e.g., chemical plants, refineries, or areas with flammable gases or dust). This is a critical feature for industries where fire or explosion risks are present.

5. **Durable Construction**

Marathon motors are built with robust materials, including **stainless steel or heavy-duty enclosures**, which enhance resistance to corrosion, moisture, and mechanical stress. This contributes to a longer operational lifespan.

6. **Easy Maintenance and Repairability**

Many Marathon motors are designed with **modular components**, making servicing and part replacements simpler. The availability of spare parts and technical support from authorized dealers further reduces downtime.

7. **Compatibility with Standard Controls**

The motor is designed to work seamlessly with common **variable frequency drives (VFDs), starters, and control systems**, allowing for flexible integration into existing or new setups.

8. **Warranty and Customer Support**

Marathon Electric typically offers **standard warranties (often 1 2 years)**, and authorized dealers provide technical assistance, which can be valuable for troubleshooting or replacements.

---

#### **Cons**

1. **Higher Upfront Cost Compared to Non-Explosion-Proof Motors**

Explosion-proof motors are inherently more expensive due to their reinforced construction and certification requirements. If the application does not require SPL certification, a standard motor would be a more cost-effective alternative.

2. **Limited Availability of Spare Parts**

While Marathon motors are reliable, finding **specific replacement parts** (e.g., bearings, windings, or seals) may require ordering from authorized distributors, which can introduce delays.

3. **Single-Phase Limitations in High-Power Applications**

While 3.45 kW is sufficient for many tasks, **single-phase motors generally have lower starting torque** compared to three-phase motors of similar power. This can be a drawback for applications requiring high initial torque (e.g., heavy-duty pumps or compressors).

4. **Potential for Higher Energy Consumption at Startup**

Single-phase motors often draw **significant inrush current** during startup, which may require additional **overcurrent protection** (e.g., starters or soft starters) to prevent tripping circuit breakers.

5. **Weight and Size Constraints**

Explosion-proof motors are bulkier due to their reinforced casings, which may limit installation flexibility in space-constrained environments.

6. **Dependence on Qualified Installation**

Improper installation (e.g., incorrect wiring, alignment, or grounding) can void warranties and reduce performance. This motor requires **professional setup**, especially in hazardous areas.

7. **Potential for Higher Maintenance Costs Over Time**

While durable, explosion-proof motors may require **more frequent inspections** (due to their operating environment) and specialized maintenance, increasing long-term costs.

---

### **Conclusion**

The **Marathon Electric P13703CP (SPL, 3.45 kW, 230V single-phase)** is an excellent choice for applications requiring **reliability, explosion-proof safety, and moderate power output** in environments where single-phase power is available. Its **durability, efficiency, and brand reputation** make it a strong investment for industrial, commercial, or hazardous-area use.

However, if **cost is a primary concern** or the application does not require explosion-proof certification, a **standard single-phase motor** (without SPL rating) may be more economical. Additionally, if **high starting torque or three-phase power** is needed, a different motor model should be considered.

### **Recommendation**

- You need an **explosion-proof motor** for hazardous environments.

- Your application requires **3.45 kW (4.6 HP) at 3450 RPM** with single-phase power.

- You prioritize **long-term reliability and low maintenance** despite higher upfront costs.

- The motor will be installed by **qualified professionals** to ensure proper operation.

- The application does **not require explosion-proof certification**, making a standard motor more cost-effective.

- You need **higher starting torque** or **three-phase power** for better efficiency.

- Budget constraints make the premium price prohibitive without justifying benefits.

- Installation expertise is lacking, as improper setup could compromise safety and performance.

For most **industrial, HVAC, or chemical processing** applications where safety and durability are critical, this motor is a **strong, well-supported choice**. Always verify compatibility with your specific load requirements and consult an electrician or motor specialist before purchase.

Details:

Marathon Electric 5 SPL HP 3450 RPM 230V Single Phase AC Motor BZK 56B34D56178 PO.

part #: p13703cp prices

• $199.99-$224.58

specifications oelemot:

• brand: Marathon Electric
• mpn: P13703cp
• model: 56b34d56178
• part type: Ac Hp 230v Motor
• actual rated input voltage: 230 V
• full load amps: 15.0
• rated load: Hp
• ac frequency rating: 60 Hz
• enclosure type: Dp
• base rpm: 3450
• ac motor type: Induction/asynchronous
• insulation class: F3
• mounting type: Base-mounted
• current type: Ac
• service factor: 1.0
• ac phase: Single Phase

returns oelemot:

• policy: No Returns

payments oelemot:

• wallet: Paypal
• credit card: Visa
• other

seller oelemot:

• # reviews: 19
• city: Newton Falls, Ohio
• rating: 100.0%

general oelemot:

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

shipping oelemot:

• service: USPS Ground Advantage
• transit: 5-11 Days
• cost: $71.88
• carrier: USPS
• class: Standard
• type: Calculated

offer oelemot:

• sold: 0
• started: May 3, 2026
• best offers: True
• availability: In Stock
• options: Ship-to-home
• quantity: 1

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