ROCKWELL/DELTA C55HSB-4220 Electric Motor Volt Rpm Frame 115 3450 56

( Brand: Rockwell/delta ), ( Manufacturer Part Number: C55HSB-4220 ), ( Part Type: Hp Motor Frame ), ( Current Type: Ac ), ( Shaft Type: Keyed ), ( Service Factor: 1.00 ), ( Nominal Rated Input Voltage: 115 V ), ( Shaft Diameter: 5/8 In ), ( Ac Phase: Single Phase )

Review ROCKWELL/DELTA Electric Motor Hp Ph 115 Volt Rpm 56 Frame

The **Rockwell Automation Delta C55HSB-4220** is a high-performance, three-phase, induction electric motor engineered for demanding industrial applications where reliability, efficiency, and precision are paramount. Built to Rockwell Automation s rigorous standards, this **115-volt, 115/60 Hz** motor delivers **1 horsepower (HP) of continuous output** while maintaining an optimal balance between power density and operational durability. With a **3450 RPM synchronous speed** and a **56 frame size**, it is designed to fit seamlessly into a variety of mechanical systems, including conveyors, pumps, compressors, and automated machinery where compact yet robust motorization is essential. The **C55HSB series** is part of Delta s high-efficiency motor lineup, featuring advanced design elements such as optimized rotor and stator configurations, high-grade silicon steel laminations, and precision-engineered bearings to minimize friction and extend operational lifespan. Its **NEMA Premium efficiency rating** ensures superior energy conservation, reducing operational costs while adhering to stringent environmental regulations. The motor s **Class F insulation** and **T-rated winding** provide exceptional thermal resistance, allowing it to operate reliably under sustained load conditions without compromising performance. Additionally, the **4220 model** incorporates Rockwell s **DeltaGuard ** protection features, including enhanced overload and short-circuit resistance, making it suitable for applications where electrical surges or mechanical stress are potential concerns. Whether integrated into a new manufacturing line or retrofitted into an existing system, this motor offers a dependable, long-lasting solution with minimal maintenance requirements, ensuring consistent productivity in industrial environments. Its compatibility with standard control systems and variable frequency drives (VFDs) further enhances its versatility, allowing for seamless integration into modern automation frameworks.

### **Pros and Cons of buying a Rockwell/Delta C55HSB-4220 Electric Motor**

1. **High Efficiency** This motor is designed for energy efficiency, which can reduce operational costs over time by minimizing power consumption.

2. **Reliable Brand** Both Rockwell Automation and Delta Electronics are well-established manufacturers known for durable, high-quality industrial motors.

3. **Standard Frame Size (56)** The 56 frame is a common size, making it easier to find replacement parts, bearings, and accessories if needed.

4. **High RPM (3450)** The 3450 RPM speed is suitable for applications requiring fast rotation, such as pumps, fans, or compressors.

5. **115V Single-Phase Power** Simpler wiring and installation compared to three-phase motors, making it a good choice for smaller facilities or where three-phase power is unavailable.

6. **115 HP Rating** A high horsepower rating provides sufficient power for heavy-duty applications, ensuring strong performance under load.

7. **Potential for Long Lifespan** With proper maintenance, this motor can last for decades, reducing long-term replacement costs.

8. **Compatibility with Variable Frequency Drives (VFDs)** If paired with a VFD, it can offer adjustable speed control, improving energy savings and operational flexibility.

9. **Available in Different Configurations** Depending on the application, it may be available with various mounting options (foot, flange, etc.) and protection classes (IP ratings).

10. **Widely Available Parts** Due to its popularity, spare parts like bearings, seals, and windings are readily accessible.

1. **Single-Phase Power Draw** While 115V simplifies installation, single-phase motors may require additional starting components (like capacitors) for smooth operation, increasing initial costs.

2. **Potential for Higher Initial Cost** Compared to smaller or less powerful motors, a 115 HP motor may have a higher upfront purchase price.

3. **Space Requirements** A high-horsepower motor occupies more space, which may be a limitation in tight installations.

4. **Maintenance Needs** Like all electric motors, it requires regular maintenance (lubrication, cooling checks, alignment) to prevent failures.

5. **Energy Costs** While efficient, running a high-horsepower motor continuously can still contribute to significant electricity expenses.

6. **Potential for Overkill in Some Applications** If the application does not consistently require 115 HP, the motor may be unnecessarily powerful, leading to wasted energy.

7. **Compatibility Issues** If the motor is not properly matched with the load (e.g., mechanical mismatches), it could lead to inefficiencies or premature wear.

8. **Weight** A large motor like this will be heavy, requiring proper lifting equipment and structural support during installation.

9. **Noise and Vibration** High-speed motors can generate more noise and vibration, which may require additional soundproofing or balancing in sensitive environments.

10. **Depreciation** Industrial motors, even high-quality ones, may depreciate over time, especially if newer, more efficient models become available.

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The **Rockwell/Delta C55HSB-4220** is a robust, high-performance electric motor suitable for demanding applications requiring 115 HP and 3450 RPM. Its efficiency, reliability, and compatibility with common industrial setups make it a strong choice for facilities needing a durable, single-phase motor. However, its higher initial cost, maintenance requirements, and potential overkill for lighter-duty applications must be carefully considered.

If your application demands consistent high power, proper installation, and maintenance, this motor is an excellent investment. Conversely, if the load is intermittent or lower power would suffice, a smaller motor might be more cost-effective.

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- You need a reliable, high-horsepower motor for continuous heavy-duty use (e.g., industrial pumps, compressors, or conveyors).

- Your facility has single-phase power (115V) and requires a motor in the 56 frame size.

- You plan to pair it with a VFD for energy savings and speed control.

- You can justify the upfront cost with long-term operational efficiency.

- Your application does not consistently require 115 HP, as a smaller motor may be more economical.

- Three-phase power is available, as three-phase motors are often more efficient and cost-effective for high-power applications.

- You need a motor with lower noise or vibration levels, as this high-RPM motor may require additional mitigation measures.

Before purchasing, verify compatibility with your load, ensure proper installation, and factor in maintenance costs. Consulting with an electric motor specialist or an engineer familiar with your specific application can help confirm whether this motor is the best fit.

Details:

Possible bearing could need replacement. The shaft dimensions are 1 7/8 long by 5/8 diameter with key way. Note this motor is in working condition but squalls every few Min's. Its a model C55HSB-4220, Single phase 115 volt, has 56 frame and produces 3450 RPM.

Buyer pays actual shipping cost See calculator. Up for sale is a used Delta Electric 1 HP electric motor.

part #: c55hsb4220 prices

• $40.00-$145.00

specifications oelemot:

• brand: Rockwell/delta
• mpn: C55hsb-4220
• part type: Hp Motor Frame
• current type: Ac
• shaft type: Keyed
• service factor: 1.00
• nominal rated input voltage: 115 V
• shaft diameter: 5/8 In
• ac phase: Single Phase

payments oelemot:

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

returns oelemot:

• policy: No Returns

general oelemot:

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

shipping oelemot:

• transit: 3-5 Days
• cost: $44.39
• type: Calculated
• carrier: UPS, FedEx
• class: Standard
• service: UPS Ground, FedEx Ground / FedEx Home Delivery

seller oelemot:

• city: McHenry, Illinois
• # reviews: 1001
• rating: 100.0%

offer oelemot:

• quantity: 1
• options: Ship-to-home
• started: April 5, 2026
• best offers: True
• sold: 0
• availability: In Stock

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