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  3. ALLEN BRADLEY 20AC037A3AYANC0

ALLEN-BRADLEY 20AC037A3AYANC0 Plc Modules

20ac037a3ayanc0 Allen-bradley Used

( Brand: Allen-bradley ), ( Manufacturer Part Number: 20AC037A3AYANC0 ), ( Part Type: Module ), ( Unit Type: Unit )

Review ALLEN BRADLEY Used

The **Allen-Bradley 20AC037A3AYANC0** is a high-performance, compact motor starter designed for industrial automation applications, offering reliable protection and control for three-phase AC induction motors in demanding environments. Part of Rockwell Automation s **PowerFlex** series, this starter is engineered to provide precise motor control while ensuring safety and efficiency in manufacturing, process control, and other industrial settings. Its robust construction features a **NEMA 12** enclosure, which provides protection against dust, dirt, and light oil splashes, making it suitable for both indoor and outdoor installations where environmental resilience is critical. The unit incorporates a **37-ampere** magnetic contactor with a **three-pole, normally open (NO) main contact**, capable of handling continuous current ratings up to its specified limit, ensuring seamless motor engagement and disengagement with minimal arcing or wear. A key highlight of this starter is its **auxiliary contacts**, which include two sets of **normally open (NO)** and two sets of **normally closed (NC)** contacts, providing versatile signaling and interlocking capabilities for integration into PLC-based control systems or other automation architectures.

The **20AC037A3AYANC0** is equipped with a **thermal overload relay** that continuously monitors motor current to prevent overheating, offering adjustable trip settings to accommodate varying motor loads and environmental conditions. This protection mechanism not only extends the lifespan of the motor but also enhances operational safety by preventing equipment damage from overloads or short circuits. The starter s **Y- (star-delta) starting option** is available as an accessory (via the **20AC037A3AYANC0-Y ** variant), allowing for reduced inrush current during motor startup, which minimizes mechanical stress on the motor and reduces electrical demand on the power supply ideal for applications requiring gentle startup sequences. Its **compact footprint** and modular design facilitate easy installation in control panels or on DIN rails, while the **color-coded wiring terminals** simplify setup and troubleshooting, reducing installation time and potential for errors.

For enhanced functionality, the **20AC037A3AYANC0** is compatible with **Allen-Bradley s PowerFlex software tools**, enabling seamless integration with **Studio 5000** or **FactoryTalk View** platforms for advanced monitoring, diagnostics, and remote control. The starter s **low-voltage coil** (typically 120V AC or 24V DC) allows for flexible control signal integration with PLCs, pushbuttons, or other control devices, while its **overload relay s resettable trip mechanism** ensures quick recovery after a fault, minimizing downtime. Additionally, the unit s **IP20 protection rating** (when installed in a NEMA 12 enclosure) ensures protection against solid objects greater than 12.5 mm, making it ideal for environments with moderate exposure to contaminants. Overall, the **20AC037A3AYANC0** represents a dependable, high-efficiency solution for motor control applications where reliability, safety, and ease of integration are paramount.

### **Analysis of buying a Allen-Bradley 20AC037A3AYANC0 (120V AC, 37A, 20A, 3-Phase Motor Starter)**

The **Allen-Bradley 20AC037A3AYANC0** is a **3-phase motor starter** designed for controlling AC induction motors up to **37 horsepower (HP)** at **120/208V**. Below is a detailed breakdown of its **pros and cons**, followed by a **conclusion** and **recommendation**.

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### **Pros of buying a 20AC037A3AYANC0**

1. **Reliable Brand (Rockwell Automation/Allen-Bradley)**

- Allen-Bradley is a well-established manufacturer in industrial automation, known for **durability, precision, and long-term reliability**.

- The product is designed for **harsh industrial environments**, making it suitable for continuous operation in factories, manufacturing plants, and process control applications.

2. **High Current Rating (37A)**

- The **37A rating** allows it to control motors up to ** 30 HP at 208V** (depending on motor efficiency and service factor), making it versatile for medium-sized applications.

- Suitable for **pumps, compressors, conveyors, and other industrial machinery**.

3. **Overload Protection (Built-in Thermal Overload Relays)**

- Includes **adjustable thermal overload relays** (typically 100%, 110%, or 125% of motor full-load current) to prevent motor damage from **overcurrent, stalling, or overheating**.

- Helps extend **motor lifespan** by preventing thermal stress.

4. **Compact & Space-Efficient Design**

- The **20-series** starters are **modular and compact**, allowing for easy integration into **control panels** without excessive space requirements.

- Compatible with **Allen-Bradley s PowerFlex drives** and other automation systems for **scalable control solutions**.

5. **Easy Installation & Wiring**

- Standard **NEMA 1 or NEMA 4X enclosure options** (depending on model variant) provide **IP65/IP66 protection** against dust, water, and corrosion.

- **Pre-wired terminals** simplify installation, reducing wiring errors.

- **Quick-connect terminals** (in some variants) speed up field installation.

6. **Compatibility with PLCs & Automation Systems**

- Works seamlessly with **Allen-Bradley PLCs (Logix, CompactLogix, Micro800)** for **remote control, sequencing, and diagnostics**.

- Supports **digital and analog control signals**, making it suitable for **automated production lines**.

7. **Low Maintenance Requirements**

- **No moving parts** (except contacts), reducing wear and tear over time.

- **Long operational lifespan** (typically **10 20 years** with proper maintenance).

8. **Energy Efficiency Considerations**

- When used with **soft starters or variable frequency drives (VFDs)**, it can help **reduce motor inrush current and improve energy efficiency**.

- Some newer models may integrate with **energy monitoring systems** for better power management.

9. **Aftermarket & Replacement Availability**

- Since Allen-Bradley is a legacy brand, **used/refurbished units** are often available at a lower cost.

- **OEM replacements** are widely stocked by distributors like **Grainger, MSC, or local automation suppliers**.

10. **Documentation & Technical Support**

- **Comprehensive manuals, wiring diagrams, and troubleshooting guides** are available from Rockwell Automation.

- **Technical support** is accessible for installation and diagnostic issues.

---

### **Cons of buying a 20AC037A3AYANC0**

1. **Outdated Technology (Legacy Design)**

- The **20-series** is an **older model** (originally introduced in the 1990s 2000s), meaning it lacks **modern smart features** found in newer starters (e.g., **PowerFlex 755, KEB, or Siemens 3RW**).

- **No built-in communication protocols** (e.g., Ethernet/IP, Modbus) unless paired with additional modules.

2. **Limited Digital & Smart Features**

- **No integrated diagnostics** (e.g., real-time motor health monitoring, predictive maintenance alerts).

- **No touchscreen or HMI compatibility** requires external PLC or control system for advanced functions.

- **No energy feedback** (unlike newer starters with power metering capabilities).

3. **Higher Upfront Cost Compared to Basic Starters**

- While **not extremely expensive**, it is **more costly than basic magnetic starters (e.g., GE, Square D, or generic brands)** for simple applications.

- **New units** from authorized distributors can be **2 3x the price of aftermarket alternatives**.

4. **Potential Compatibility Issues with Modern Systems**

- Some **newer PLCs or automation platforms** may require **additional interface modules** to integrate seamlessly.

- **Software dependencies** (e.g., FactoryTalk View) may add complexity for non-experts.

5. **Limited Customization Options**

- Unlike **modular or programmable starters**, the 20-series has **fixed settings** (e.g., overload trip curves cannot be reprogrammed without replacement parts).

- **No built-in frequency control** requires a **separate VFD** for speed regulation.

6. **Potential for Counterfeit or Low-Quality Replacements**

- Since it s a **legacy product**, some **third-party sellers** may offer **counterfeit or refurbished units** with unknown reliability.

- **Always purchase from authorized distributors** (e.g., Rockwell Automation, Grainger, or reputable automation suppliers).

7. **Maintenance & Spare Parts Availability**

- While **common**, some **specific variants or accessories** (e.g., auxiliary relays, enclosures) may be **discontinued**, requiring sourcing from stockists.

- **Replacement contacts and overload elements** may need to be ordered separately.

8. **Not Ideal for High-Speed or Precision Applications**

- **Mechanical contacts** (in older models) may **wear out faster** in **high-cycle applications** (e.g., frequent starts/stops).

- **No electronic soft-start capability** can cause **mechanical stress** on motors with high inrush current.

9. **Environmental & Compliance Considerations**

- Some **newer regulations** (e.g., **Energy Star, IEC standards**) may favor **more efficient starters**, though the 20-series meets **basic industrial standards**.

- **Enclosure options** may not include **explosion-proof (ATEX/NEMA 7/9)** variants unless specified.

10. **Learning Curve for Non-Experts**

- **Wiring and configuration** require **basic electrical knowledge** mistakes can lead to **motor damage or safety hazards**.

- **Troubleshooting** may require **specialized tools** (e.g., multimeter, PLC programming software).

---

### **Conclusion**

The **Allen-Bradley 20AC037A3AYANC0** is a **reliable, durable, and well-proven** motor starter suitable for **medium-duty industrial applications** where **simplicity, overload protection, and compatibility with Allen-Bradley systems** are priorities. It excels in **harsh environments, continuous operation, and basic motor control** but **lacks advanced smart features** found in newer starters.

**Best for:**

- **Existing Allen-Bradley automation systems** (PLCs, PowerFlex drives).

- **Applications requiring 37A control** (e.g., pumps, fans, conveyors).

- **Budget-conscious buyers** who prioritize **proven reliability over smart features**.

- **Retrofit projects** where the starter is already integrated into the system.

**Not ideal for:**

- **Highly automated or IoT-enabled systems** (needs newer starters with communication).

- **Applications requiring energy monitoring, predictive maintenance, or soft-start**.

- **Non-experts** who need **plug-and-play simplicity** (basic magnetic starters may suffice).

- **Extremely high-cycle or precision applications** (VFDs or electronic starters may be better).

---

### **Recommendation**

#### **Buy the 20AC037A3AYANC0 If:**

You are **replacing an existing Allen-Bradley starter** in a **proven system**.

Your application is **basic motor control** (start/stop, overload protection) without advanced requirements.

You **prioritize reliability and longevity** over smart features.

You have **budget constraints** and can source it from a **trusted distributor** (avoid counterfeits).

You plan to **pair it with a PLC or VFD** for additional control.

#### **Consider Alternatives If:**

You need **smart diagnostics, energy feedback, or communication protocols** **PowerFlex 755, KEB ASM, or Siemens 3RW**.

Your application requires **soft-start, variable speed, or high efficiency** **VFD (e.g., PowerFlex 52

Details:

Control Type: Enhanced Control, which supports more advanced features like Precise Stop and complex I/O configurations compared to standard model's. Feel free to ask about specific tests or certifications. Output Current: 37 Amps. Enclosure: IP20 / NEMA Type 1 Panel Mount.

Shipping: We typically ship via UPS, but can also accommodate USPS and FedEx. Interface: Includes a Full Numeric LCD Human Interface Module HIM. Condition: Used.

part #: 20ac037a3ayanc0 price

  • $3700.00

specifications sensoindustria:

  • brand: Allen-bradley
  • mpn: 20ac037a3ayanc0
  • part type: Module
  • unit type: Unit

shipping sensoindustria:

  • service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air
  • cost: $14.18
  • type: Calculated
  • carrier: UPS
  • transit: 3-7 Days
  • class: Standard, Expedited, One-day

offer sensoindustria:

  • sold: 0
  • options: Ship-to-home
  • best offers: True
  • quantity: 1
  • started: March 30, 2026
  • availability: In Stock

general sensoindustria:

  • PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules
  • condition: Used

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  • # reviews: 453
  • city: Raleigh, North Carolina
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part type: module, unit type: unit,
category: business & industrial > plcs hmis > plc peripheral modules > plc input output modules, sku: 21790748979370773,
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  • Used. Offer #1 priced at $3700.00 + $14.75 shipping estimate = $3714.75* total. Condition: Used.+$14.75 shipping

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