1. Automation/Motion Controls For Sale
  2. sku: 15265539502297632
  3. ALLEN BRADLEY 100-A38NT3

ALLEN BRADLEY 100-A38NT3 Automation

100-a38nt3 Allen Bradley / 100a38nt3 Used

( Brand: Allen Bradley ), ( Manufacturer Part Number: 100-A38NT3 )

Review ALLEN BRADLEY 100a38nt3 Used

The **Allen-Bradley 100-A38NT3 (also referenced as 100A38NT3)** is a high-performance, compact motor starter designed for industrial automation applications requiring robust control and protection of three-phase AC motors. Part of Rockwell Automation s **PowerFlex** series, this motor starter is engineered to deliver reliable performance in demanding environments, offering seamless integration with PLCs, variable frequency drives (VFDs), and other control systems. The unit features a **non-fused, magnetic contactor** with a **normally open (NO) main contact** rated for continuous operation, making it ideal for applications such as pumps, conveyors, compressors, and other motor-driven machinery where frequent starts, stops, and reversing are required. Its **compact, NEMA 1 or NEMA 4X enclosure** ensures durability against dust, moisture, and corrosive conditions, while the **auxiliary contacts** (including a normally closed (NC) auxiliary contact) provide additional control flexibility for interlocking, signaling, or fault detection. The starter is compatible with **208 240V AC or 380 480V AC** power supplies, accommodating a wide range of motor sizes up to its rated current capacity, typically **30 amps (continuous)** though exact specifications may vary based on ambient temperature and duty cycle. Its **low-profile design** allows for easy installation in tight spaces, while the **quick-disconnect terminals** simplify wiring and maintenance. Additionally, the 100-A38NT3 is designed for **plug-and-play compatibility** with Rockwell s **FactoryTalk View** and **Studio 5000** software platforms, enabling seamless integration into larger automation systems for monitoring, diagnostics, and remote control. Whether used in manufacturing, process control, or HVAC systems, this motor starter delivers **high efficiency, long-term reliability, and ease of use**, making it a trusted component in industrial automation setups.

### **Pros and Cons of buying a Allen-Bradley 100-A38NT3 (100A38NT3) Terminal Block**

#### **Overview**

The **Allen-Bradley 100-A38NT3** is a **100-ampere, 38-position, terminal block** designed for industrial control applications. It is part of the **100 Series Terminal Blocks**, which are widely used in PLC systems, motor control centers, and other electrical distribution panels. Below is a detailed analysis of its advantages and disadvantages.

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### **Pros**

1. **High Current Rating (100 Amps)**

- Suitable for heavy-duty applications, including motor starters, contactors, and high-power control circuits.

- Meets the demands of industrial environments where high current loads are common.

2. **Reliable and Durable Construction**

- Made from **molded phenolic or composite materials**, which provide good electrical insulation and mechanical strength.

- Designed for **long-term use** in harsh industrial conditions, including temperature fluctuations and vibration.

3. **Modular and Flexible Design**

- The **38-position configuration** allows for customization in wiring layouts, accommodating various control schemes.

- Can be easily integrated into **Allen-Bradley s modular terminal block systems**, simplifying panel design and wiring.

4. **Easy Installation and Wiring**

- Features **screw-terminal connections**, ensuring secure and reliable electrical contacts.

- Designed for **quick assembly**, reducing installation time in control panels.

5. **Compatibility with Allen-Bradley Systems**

- Works seamlessly with **Rockwell Automation PLCs, motor starters, and other industrial control devices**.

- Part of a **well-established product line**, meaning availability of spare parts and technical support.

6. **Safety Features**

- **Insulated terminals** prevent short circuits and improve safety.

- **Clear labeling options** (if marked) help in identifying wiring paths, reducing errors.

7. **Wide Availability and Spare Parts Support**

- As a **legacy but still widely used component**, replacement parts are readily available from distributors like **Grainger, Mouser, or Rockwell Automation**.

- Supported by **Rockwell Automation s technical documentation and service networks**.

---

### **Cons**

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

- While still functional, the **100 Series terminal blocks are older** compared to newer designs (e.g., **100 Series II or 100 Series III**).

- May lack **modern features** such as **IP67/IP68 ratings** or **smart diagnostics** found in newer models.

2. **Limited Position Count (38 Positions)**

- If your application requires **more than 38 terminals**, you may need multiple blocks, increasing complexity and cost.

- Not ideal for **high-density wiring** applications where space is constrained.

3. **Potential for Loose Connections Over Time**

- Like many screw-terminal blocks, **vibration or thermal cycling** can cause **loose connections** if not properly torqued.

- Requires **regular maintenance checks** to ensure reliability.

4. **No Built-in Overload Protection**

- Unlike some modern terminal blocks, this does **not include built-in fuses or circuit protection** for individual terminals.

- Users must rely on **external fuses or circuit breakers** for overload protection.

5. **Limited Environmental Ratings**

- Typically rated for **indoor use** (unless specified otherwise).

- May not be suitable for **extreme outdoor conditions** without additional protection (e.g., enclosures).

6. **Potential for Stock Discontinuation**

- While still available, **Rockwell Automation occasionally discontinues older products**, which could lead to **supply chain issues** in the future.

- Always verify **current availability** before purchasing in bulk.

7. **No Built-in Testing or Diagnostics**

- Unlike **smart terminal blocks**, this does not provide **real-time monitoring or fault detection**.

- Troubleshooting may require **manual inspection**, increasing downtime.

---

### **Conclusion**

The **Allen-Bradley 100-A38NT3** is a **reliable, high-current terminal block** well-suited for **industrial control applications** where durability and compatibility with Rockwell Automation systems are priorities. Its **100-amp rating, modular design, and ease of installation** make it a practical choice for many motor control and PLC applications.

However, its **legacy status, limited position count, and lack of advanced features** may not make it the best option for **high-density, modern, or highly automated systems**. If **long-term availability and compatibility with existing systems** are critical, this block remains a **solid, cost-effective solution**. For **new installations requiring higher reliability, diagnostics, or environmental protection**, newer terminal block series (e.g., **100 Series III or IP-rated alternatives**) may be preferable.

---

### **Recommendation**

- **Buy the 100-A38NT3 if:**

- You are **maintaining or upgrading an existing Rockwell Automation system** that already uses this terminal block.

- Your application requires **100 amps per terminal** and does not need advanced features.

- You need a **proven, reliable component** with good availability.

- Cost is a **primary concern**, and you can justify the trade-offs in durability and future-proofing.

- **Consider an Alternative if:**

- You need **more than 38 terminals** (e.g., 50, 100, or 200 positions).

- Your application requires **higher environmental protection (IP67/IP68)**.

- You want **built-in diagnostics, smart features, or easier troubleshooting**.

- You are designing a **new system** and want **longer-term support** (consider **100 Series III or other modern terminal blocks**).

- You need **overcurrent protection at the terminal level** (may require additional fuses or breakers).

#### **Suggested Alternatives:**

- **Allen-Bradley 100 Series III Terminal Blocks** (e.g., **100-A38NT3-C** for higher IP ratings).

- **Siemens LOGO! or Schneider Electric Terminal Blocks** (if compatibility with other brands is acceptable).

- **Mouser or Digi-Key s High-Density Terminal Blocks** (for modern, space-efficient designs).

**Final Verdict:** The **100-A38NT3 is a good choice for legacy systems and high-current industrial control**, but for new projects, evaluating **newer, more feature-rich alternatives** may be beneficial. Always verify **current stock availability** before purchasing in bulk.

Details:

Call to use a shipping service other than the ones listed. Sells new and surplus product develops channels to purchase such. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use if purchasing a used product.

part #: 100a38nt3 prices

  • $154.50-$299.99

specifications automationjack:

  • brand: Allen Bradley
  • mpn: 100-a38nt3

returns automationjack:

  • time: 30 Days
  • policy: Returns Accepted
  • method: Money back
  • paid by: Buyer

payments automationjack:

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

general automationjack:

  • condition: Used
  • Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment

shipping automationjack:

  • transit: 32-36 Days
  • class: Standard
  • type: Fixed
  • service: Standard
  • cost: $12.90

offer automationjack:

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

seller automationjack:

  • rating: 99.7%
  • # reviews: 2021 18
  • city: 1 Millennium Dr, Willingboro, NJ 08046
category: business & industrial > industrial automation motion controls > automation equipment, sku: 15265539502297632,
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2 offers $154.50–$299.99 USD
  • New. Offer #1 priced at $299.99 + $11.95 shipping estimate = $311.94* total. +$11.95 shipping
  • Used. Offer #2 priced at $154.50 + $12.90 shipping estimate = $167.40* total. FACTORY WARRANTY MAY NOT APPLY.+$12.90 shipping

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