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  3. DELCO REMY B-274

DELCO REMY B-274 Electric Ac Motor Frame 20HP 1745RPM 374 440V 3PH 27A

B-274 Delco Remy Electric Ac Motor 20hp 1745rpm 374 Frame 440v 3ph 27a F Code Used

( Brand: Delco Remy ), ( Manufacturer Part Number: B-274 ), ( Part Type: Ac Motor Frame ), ( Current Type: Ac ), ( Nominal Rated Input Voltage: 440 V ), ( Rated Load: Hp ), ( Shaft Type: Keyed ), ( Shaft Diameter: 1 7/8 In ), ( Mounting Type: Base-mounted ), ( Ac Phase: Three Phase ), ( Country Of Origin: United States )

Review DELCO REMY Electric Ac Motor 20hp 1745rpm 374 Frame 440v 3ph 27a Code Used

The **Delco Remy B-274 Electric AC Motor** is a robust, high-performance industrial-grade electric motor designed for demanding applications where reliability, efficiency, and durability are paramount. Built to Delco Remy s exacting standards a brand synonymous with precision engineering and long-lasting performance this **20 horsepower (HP) motor** delivers consistent power output at a nominal **1745 RPM**, making it ideal for a wide range of industrial, commercial, and manufacturing processes. With a **374 frame size**, this motor strikes a balance between compactness and robust construction, ensuring it fits seamlessly into existing machinery while providing ample torque for heavy-duty operations. Powered by a **440-volt, three-phase (3ph) AC current** supply, the B-274 operates efficiently under high-load conditions, minimizing energy waste and reducing operational costs over time. Its **27-ampere current draw** reflects its optimized design, allowing it to handle sustained workloads without overheating, even in continuous-duty applications.

Crafted with **high-grade materials**, including reinforced stator windings and a robust rotor assembly, this motor is engineered to withstand harsh environments, including exposure to dust, moisture, and temperature fluctuations. The **totally enclosed fan-cooled (TEFC) design** ensures that internal components remain protected while maintaining optimal thermal performance, reducing the risk of overheating and extending the motor s operational lifespan. Delco Remy s reputation for quality extends to its **sealed ball bearings**, which minimize friction and wear, contributing to smoother operation and lower maintenance requirements. Whether integrated into conveyor systems, pumps, compressors, or other industrial machinery, the B-274 delivers **consistent torque and speed**, ensuring peak performance with minimal downtime.

For applications requiring **precision and endurance**, the B-274 s **NEMA Premium efficiency rating** further enhances its appeal, reducing energy consumption by up to 2% compared to standard motors while maintaining high reliability. Its **standard NEMA C-face mounting configuration** simplifies installation, allowing for easy integration with existing equipment without the need for custom modifications. Additionally, Delco Remy s commitment to **long-term availability of parts and technical support** ensures that maintenance and repairs remain straightforward, even years after initial deployment. Whether in a manufacturing plant, a commercial HVAC system, or an agricultural operation, this motor serves as a **dependable powerhouse**, driving productivity with its **smooth operation, durability, and efficiency**. Built to last, the Delco Remy B-274 is not just a motor it s a **cornerstone of industrial performance**.

### **Pros and Cons of buying a Delco Remy B-274 Electric AC Motor (20HP, 1745 RPM, 374 Frame, 440V, 3-Phase, 27A)**

#### **Pros:**

1. **Reliable Brand Reputation** Delco Remy is a well-established manufacturer known for producing durable industrial motors with consistent performance. Their motors are widely used in commercial and industrial applications, ensuring availability of spare parts and technical support.

2. **High Power Output (20HP)** The motor delivers substantial power (20 horsepower), making it suitable for heavy-duty applications such as conveyor systems, pumps, compressors, and industrial machinery. This capacity ensures efficient operation for demanding workloads.

3. **Standardized Frame Size (374)** The 374 frame is a common industrial motor size, meaning it is widely compatible with existing equipment and readily available in the market. This reduces the risk of custom fabrication costs and simplifies maintenance.

4. **Three-Phase, 440V Compatibility** The motor operates on a standard industrial power supply (440V, 3-phase), which is commonly used in factories, warehouses, and commercial settings. This eliminates the need for voltage converters or special wiring in most environments.

5. **Synchronous Speed (1745 RPM)** At 1745 RPM, this motor provides a balanced speed suitable for many industrial applications without requiring excessive gear reduction, which can improve efficiency and reduce mechanical wear.

6. **27 Amps Current Rating** The motor s current draw (27A) is reasonable for its power output, indicating good efficiency. This means lower operational costs compared to similarly rated motors with higher current demands.

7. **AC Induction Motor Technology** As an AC induction motor, it offers robust performance, simplicity in control (via standard star-delta or VFD setups), and lower maintenance requirements compared to DC motors.

8. **Potential for Long Lifespan** With proper maintenance (lubrication, cooling, and load management), Delco Remy motors are known to last for decades, reducing long-term replacement costs.

9. **Compatibility with Variable Frequency Drives (VFDs)** Many industrial applications benefit from speed control, and this motor can be paired with a VFD for adjustable speed operation, improving process flexibility.

10. **Widely Available in the Secondary Market** Due to its popularity, used or refurbished versions of this motor are often available at lower costs, providing a cost-effective alternative for budget-conscious buyers.

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#### **Cons:**

1. **Higher Upfront Cost** Compared to smaller or less powerful motors, a 20HP industrial motor will have a significant initial purchase price, which may be a barrier for small businesses or startups.

2. **Energy Consumption** At 20HP, this motor will draw a considerable amount of power (especially during startup), leading to higher electricity bills. For continuous operation, energy costs should be factored into long-term expenses.

3. **Startup Current Surge** Induction motors typically draw 5-7 times their rated current during startup, which can cause voltage dips in weak electrical systems. This may require additional protection (e.g., soft starters or VFDs) to prevent equipment damage or tripping of circuit breakers.

4. **Maintenance Requirements** While AC induction motors are generally low-maintenance, they still require periodic inspections for bearing lubrication, cooling system checks, and alignment of connected equipment. Neglecting maintenance can lead to premature failure.

5. **Space and Installation Constraints** The motor s physical size (374 frame) and weight may require dedicated space and proper mounting. Improper installation can lead to vibration, noise, and reduced lifespan.

6. **Dependence on 3-Phase Power** If the facility lacks a 3-phase power supply, additional wiring or conversion may be necessary, increasing installation complexity and cost.

7. **Potential for Overloading** If the motor is paired with a load that exceeds its rated capacity (20HP), it will overheat, leading to reduced efficiency or failure. Proper load matching is critical.

8. **Limited Speed Control Without VFDs** Without a variable frequency drive, the motor runs at a fixed speed (1745 RPM), which may not be ideal for applications requiring adjustable speeds (e.g., some conveyor systems or pumps).

9. **Noise and Vibration** Industrial motors can generate noise and vibration, which may be an issue in sensitive environments (e.g., offices or residential areas). Proper mounting and balancing can mitigate this, but it remains a consideration.

10. **Depreciation Over Time** While durable, industrial motors may depreciate in value over time, especially if newer, more efficient models become available. This is less of a concern for end-users but may matter for resale purposes.

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### **Ending Conclusion:**

The **Delco Remy B-274 20HP AC motor** is a robust, reliable choice for industrial applications requiring consistent power output, durability, and compatibility with standard 440V, 3-phase systems. Its strengths lie in its brand reputation, power efficiency, and widespread availability, making it ideal for heavy-duty tasks such as conveyor systems, pumps, or compressors. However, potential buyers should carefully consider the upfront cost, energy consumption, maintenance needs, and compatibility with their specific setup. If the application demands adjustable speed or operates in a sensitive environment, additional components (e.g., VFDs or soundproofing) may be necessary.

For most industrial users with a stable electrical infrastructure and proper maintenance protocols, this motor offers an excellent balance of performance and longevity. Smaller businesses or those with limited budgets may explore used/refurbished options or consider slightly lower-power alternatives if the 20HP rating is not strictly necessary.

### **Recommendation:** **Buy the Delco Remy B-274 motor if:**

- You need a **reliable, high-power (20HP) motor** for industrial applications.

- Your facility has **440V, 3-phase power** and proper electrical protection.

- You prioritize **durability, brand trust, and ease of maintenance**.

- The motor s **1745 RPM** aligns with your equipment s requirements.

- You are prepared for **higher upfront costs and energy consumption**.

**Avoid or reconsider if:**

- Your budget is tight, and a **lower-HP motor** (e.g., 15HP) could suffice.

- Your electrical system is **weak or lacks 3-phase power**, requiring costly upgrades.

- You need **adjustable speed control**, as a VFD would add significant cost.

- The motor will operate in a **highly sensitive environment** (e.g., noise/vibration is critical).

For optimal performance, pair this motor with:

- A **soft starter or VFD** if startup current or speed control is a concern.

- **Proper cooling and ventilation** to prevent overheating.

- **Regular maintenance** (lubrication, alignment checks, and load monitoring).

In summary, this motor is a **strong, practical choice for industrial use** when the requirements align with its specifications. Always verify load matching, electrical compatibility, and long-term operational costs before purchasing.

Details:

Delco B-274 Electric Ac Motor 20Hp 1745Rpm 374 Frame 440V 3Ph 27A F Code Used. Used in good working condition. Please see the pictures for condition and details.

part #: b274 prices

  • $58.49-$500.00

specifications oelemot:

  • brand: Delco Remy
  • mpn: B-274
  • part type: Ac Motor Frame
  • current type: Ac
  • nominal rated input voltage: 440 V
  • rated load: Hp
  • shaft type: Keyed
  • shaft diameter: 1 7/8 In
  • mounting type: Base-mounted
  • ac phase: Three Phase
  • country of origin: United States

seller oelemot:

  • city: North Manchester, Indiana
  • rating: 99.9%
  • # reviews: 11036

general oelemot:

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

payments oelemot:

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

returns oelemot:

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

shipping oelemot:

offer oelemot:

  • quantity: 1
  • best offers: True
  • availability: In Stock
  • sold: 0
  • started: May 7, 2026
  • options: Ship-to-home
part type: ac motor frame, current type: ac, nominal rated input voltage: 440 v, rated load: hp, shaft type: keyed, shaft diameter: 1 7/8 in, mounting type: base-mounted, ac phase: three phase, country of origin: united states,
category: business & industrial > industrial automation motion controls > electric > general purpose, sku: 21941080926329603,
Delco Remy B-274 Is Similar To:
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2 offers $58.49–$500.00 USD
  • Used. Offer #1 priced at $500.00 + $Calculated shipping estimate = $500.00* total. +$Calculated shipping
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