MARATHON K080 Ac Motor Dp 56T17D3308B 3HP 3PH 208-230/460V 1725RPM 60HZ SF1.15

( Brand: Marathon ), ( Manufacturer Part Number: K080 ), ( Model: 56T17D3308B ), ( Part Type: Ac Motor ), ( Actual Rated Input Voltage: 208-230/460 V ), ( Full Load Amps: 9.2-8.6/4.3 ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Dp ), ( Base Rpm: 1725 ), ( Ac Motor Type: Induction/asynchronous ), ( Mounting Type: Foot-mounted, Base-mounted ), ( Current Type: Ac ), ( Service Factor: 1.15 ), ( Nominal Rated Input Voltage: 208 V, 230 V, 460 V ), ( Ac Phase: Three Phase )

Review MARATHON 3hp 3ph Ac Motor 208-230/460v 1725rpm 60hz Dp

The **Marathon K080 3HP 3-Phase AC Motor** is a robust, high-performance electric motor engineered for reliability, efficiency, and versatility in industrial, commercial, and heavy-duty applications. Part of Marathon s trusted line of premium electric motors, this **3-phase, 3 horsepower (HP) unit** delivers consistent power output while adhering to strict NEMA and industry standards for durability and performance. With a **voltage rating of 208 230V or 460V**, this motor is designed to operate seamlessly across a wide range of electrical systems, making it an ideal choice for facilities requiring flexibility in power distribution. Running at a standard **1,725 RPM at 60Hz**, the K080 ensures smooth, efficient operation in applications such as conveyors, pumps, compressors, and industrial machinery where steady torque and speed are critical.

Built with **NEMA Premium efficiency standards**, this motor maximizes energy savings while minimizing operational costs, making it an eco-friendly and cost-effective solution for businesses prioritizing sustainability. The **DP (Drip-Proof) enclosure with a Service Factor (SF) of 1.15** provides enhanced protection against dust, debris, and moisture, ensuring prolonged performance even in harsh or unprotected environments. The robust construction features high-quality materials, including precision-engineered bearings and a sealed rotor design, which together contribute to extended motor life and reduced maintenance requirements. Whether integrated into a manufacturing plant, HVAC system, or material handling equipment, the Marathon K080 delivers dependable performance with minimal downtime, reinforcing its reputation as a workhorse in industrial motor solutions.

Ideal for applications demanding both power and precision, this motor s compact yet sturdy frame (likely a **NEMA 143T or similar standard frame size**) allows for easy installation in tight spaces while maintaining optimal cooling efficiency. The **3-phase AC induction design** ensures consistent torque delivery, making it suitable for continuous-duty operations without sacrificing performance. Additionally, Marathon s commitment to quality control guarantees that each K080 motor undergoes rigorous testing to meet or exceed industry benchmarks for vibration, noise, and thermal performance. For businesses seeking a motor that balances reliability, efficiency, and adaptability, the Marathon K080 3HP 3-Phase AC Motor stands as a dependable choice proving that superior engineering meets real-world demands.

### **Pros and Cons of buying a Marathon K080 3HP 3-Phase AC Motor (208-230/460V, 1725 RPM, 60Hz, DP SF 1.15)**

#### **Pros**

1. **Reliable Brand Reputation** Marathon is a well-known manufacturer of industrial motors, offering durable and high-quality products with a strong track record in commercial and industrial applications.

2. **Wide Voltage Range (208-230V/460V)** The dual-voltage capability makes it versatile for different electrical setups, reducing the need for additional voltage conversion equipment.

3. **Standard NEMA Frame (K080)** This frame size is common in industrial applications, making it easier to find replacement parts, accessories, and compatible components.

4. **Efficient Performance (SF 1.15 Service Factor)** A service factor of 1.15 indicates that the motor can handle short-term overloads (15% above rated capacity) without premature failure, improving operational flexibility.

5. **Rated for 60Hz Operation** Ensures compatibility with standard North American electrical grids, avoiding potential issues with frequency mismatches.

6. **Rated Speed (1725 RPM)** Suitable for many standard industrial applications, including pumps, fans, compressors, and conveyors, without requiring additional gearing.

7. **Three-Phase Design** Three-phase motors generally offer smoother operation, better torque characteristics, and higher efficiency compared to single-phase alternatives.

8. **Cost-Effective for Medium-Duty Applications** At 3HP, it strikes a balance between power and affordability, making it a practical choice for small to medium industrial tasks.

9. **Easy Maintenance Access** Standard NEMA designs typically allow for straightforward maintenance, including bearing lubrication and winding inspections.

10. **Compatibility with Standard Control Systems** Works seamlessly with common industrial motor starters, variable frequency drives (VFDs), and protective relays.

---

#### **Cons**

1. **Limited Single-Phase Capability** While it supports dual three-phase voltages, it does not have a built-in single-phase option, which may require additional equipment (e.g., a phase converter) for single-phase applications.

2. **Standard Efficiency (Not Premium)** Unlike premium efficiency motors, this model does not offer the highest energy savings, which could lead to slightly higher operational costs over time.

3. **No Built-In Protection Against Overloads or Faults** Relies on external overload relays or protective devices for safety, which adds to installation complexity.

4. **Potential Noise and Vibration** Like most industrial motors, it may produce some noise and vibration, which could be a concern in noise-sensitive environments.

5. **Dependence on Proper Installation** Improper wiring, grounding, or mounting can lead to reduced lifespan or performance issues. Requires skilled installation.

6. **Limited Customization** Unlike some specialty motors, this is a standard model with fixed specifications (e.g., speed, voltage, HP), limiting flexibility for unique applications.

7. **Warranty Limitations** Standard warranties may not cover damage from misuse, environmental factors, or improper maintenance. Always review the warranty terms.

8. **Potential Lead Times** Depending on the supplier and demand, stock availability may vary, leading to delays in delivery.

9. **No Inbuilt Enclosure Protection (Standard IP Rating)** The exact IP (Ingress Protection) rating is not specified here, but standard NEMA motors typically have IP54 or similar, which may not be sufficient for harsh or wet environments without additional sealing.

10. **VFD Compatibility May Require Consideration** While compatible with VFDs, some models may require additional filtering or derating if used with variable frequency drives to avoid overheating.

---

### **Conclusion**

The **Marathon K080 3HP 3-phase AC motor** is a solid, reliable choice for **medium-duty industrial applications** where a standard, efficient, and versatile motor is needed. Its **dual-voltage capability, NEMA frame compatibility, and 1.15 service factor** make it a practical option for pumps, fans, compressors, and conveyors. However, it is not the most energy-efficient option available, lacks built-in fault protection, and may require additional accessories (e.g., overload relays, phase converters) depending on the application.

For **general industrial use where cost, reliability, and ease of maintenance are priorities**, this motor is a **good recommendation**. However, if **energy efficiency, premium protection, or customization** is required, exploring higher-efficiency or specialty motors may be worthwhile.

---

### **Recommendation**

- You need a **reliable, standard NEMA-frame 3HP motor** for general industrial use.

- Your application requires **dual-voltage (208-230V/460V) compatibility**.

- You have access to **proper protective relays and maintenance infrastructure**.

- Cost-effectiveness and ease of part replacement are key factors.

- You require **premium efficiency** (look for NEMA Premium or IE3/IE4 motors).

- Your environment is **extremely harsh** (consider explosion-proof or higher IP-rated motors).

- You need **single-phase operation** (a phase converter or single-phase motor would be necessary).

- Your application demands **variable speed control** (ensure VFD compatibility or choose a motor with better VFD derating capabilities).

For most **standard industrial applications**, this motor is a **sound investment** due to its balance of performance, reliability, and affordability. Always verify **voltage requirements, mounting space, and protective measures** before purchase.

Details:

Marathon 3HP 3PH AC Motor 208-230/460V 1725RPM 60Hz DP SF1.15 K080.

part #: k080 prices

• $175.00-$656.03

specifications oelemot:

• brand: Marathon
• mpn: K080
• model: 56t17d3308b
• part type: Ac Motor
• actual rated input voltage: 208-230/460 V
• full load amps: 9.2-8.6/4.3
• ac frequency rating: 60 Hz
• enclosure type: Dp
• base rpm: 1725
• ac motor type: Induction/asynchronous
• mounting type: Foot-mounted, Base-mounted
• current type: Ac
• service factor: 1.15
• nominal rated input voltage: 208 V, 230 V, 460 V
• ac phase: Three Phase

offer oelemot:

• started: May 25, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock
• best offers: True

returns oelemot:

• policy: No Returns

general oelemot:

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

seller oelemot:

• rating: 0.0%
• # reviews: 0
• city: Shoreham, New York

payments oelemot:

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

shipping oelemot:

• transit: 4-10 Days
• carrier: UPS
• class: Standard
• type: Calculated
• service: UPS Ground
• cost: $68.66

Marathon K080 Is Similar To:

• Kse56c34d852a Marathon Motor Volts Frame Dripproof (37.6% similar) Motor is new it was not installed run on a construction project. It is being sold as surplus...(July 23rd, 2018)
• 002-0002 Marathon Electric Motor Hp Works Great (33.6% similar) Great working motor with some cosmetic ware 1/2 shaft 3400RPM...(October 2nd, 2018)
• 043481999890 Marathon Hp Farm Duty Shop Motor (32.4% similar) Part: GEX31531 prices...(April 1st, 2019)
• 043481999920 Marathon Motors Hp Farm Duty Shop Motor (32.2% similar) Part: GEX31231 prices...(April 1st, 2019)
• 048s17d2090 Marathon Motors Electric Hp Motor Single Phase Hz Rpm (35.1% similar) Marathon electric 1/3 hp motor, new old stock, single phase, 60 hz, 1725 rpm. Purchased out of maintenance department clearance offer...(March 24th, 2019)
• 056c17d2074 Marathon Motors Hp Rpm General Purpose Motor (32.8% similar) 40 degrees c motor shaft rotation cw cc DOA. The very best practice is to look at all pictures and ask questions before buying. Windy city liquidation is a corporation that helps its clients dispose of unwanted inventory. C charity or selling it directly to us. Ambient temp the voltage is, ...(July 20th, 2018)
• 056c17g15527 Marathon Electric Motor Model (31.5% similar) Hazardous location motor, capacitor start, motor shaft rotation cw cc, mounting type is rigid base, class 1 c,d 2 e,f,g, diameter 5/8 , length 7 less overall lead 6 duty continuous, bearings ball, frame material steel, standards are ul listed E12044 CSS certified LR47504. Marathon motor model ...(February 18th, 2019)
• 056h17e5301 Marathon Hp Rpm Epnv Motor New (37% similar) New, opened box for pictures. Weighs 30 lbs. Box has wear from shelving and writing on it. Please review all pictures...(October 17th, 2018)
• 056t17d1044-c00589-13 Marathon Electric Motor (28.8% similar) Marathon electric 1/2 hp ac motor 056T17D1044 C00589-13056T17D1044 C00589 HP208 volts 1725 1425 RPM3 unused condition...(July 28th, 2018)
• 056t17d15910 Marathon Motors Motor Keyed (30.2% similar) motor shaft design keyed. Ambient temp. 85 full load amps, no. 25 motor service factor, ball bearings, frame material rolled steel, max of speeds 1, mounting type rigid base, position horizontal, thermal protection none, ins...(August 4th, 2018)
• 056t17d2099f Marathon Motors Motor Hp Rpm Air Conditioner Fan Blower Ac (32.1% similar) 3RPM 1500 fl eff N/A sf air conditioning ac replaces. 4 rpm 1800 fl eff 75. It is new in the original opened box. Have a great day...(July 4th, 2018)