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  3. ALLEN BRADLEY 20-HIM-A0

ALLEN BRADLEY 20-HIM-A0 Plc Modules

20-him-a0 Allen Bradley / 20hima0 Used

( Brand: Allen Bradley ), ( Manufacturer Part Number: 20-HIM-A0 ), ( Part Type: Module )

Review ALLEN BRADLEY 20hima0 Used

The **Allen-Bradley 20-HIM-A0 (20HIMA0)** is a high-performance, compact industrial motor starter designed for demanding applications in manufacturing, automation, and process control environments. Part of Rockwell Automation s **PowerFlex** series, this motor starter is engineered to provide reliable, efficient motor control while minimizing downtime and operational complexity. Built with a robust **NEMA 12** enclosure, the 20-HIM-A0 is constructed from durable materials to withstand harsh industrial conditions, including exposure to dust, moisture, and temperature fluctuations, ensuring long-term operational integrity. Its compact yet sturdy design allows for easy integration into existing control panels or dedicated junction boxes, making it ideal for space-constrained applications without compromising performance.

At the heart of the 20-HIM-A0 is a **solid-state overload relay** with advanced thermal protection, which continuously monitors motor current to prevent overheating and extend equipment lifespan. This relay features **adjustable trip settings** (via DIP switches or external potentiometers) to accommodate a wide range of motor sizes and load conditions, providing flexibility for diverse industrial applications. The starter also incorporates **soft-start capabilities**, allowing for gradual acceleration of motors to reduce mechanical stress, electrical surges, and wear on connected equipment. This feature is particularly beneficial in applications involving pumps, conveyors, or compressors where abrupt starts could cause system strain.

The 20-HIM-A0 is equipped with a **modular terminal block system**, ensuring secure and efficient wiring connections while simplifying maintenance and troubleshooting. Its **auxiliary contact outputs** (normally open and normally closed) provide additional control signaling for integration with PLCs, relays, or other automation devices, enabling seamless coordination within larger control systems. The starter s **LED indicators** offer real-time feedback on operational status, including motor running, fault conditions, and overload protection activation, enhancing diagnostic capabilities for plant technicians.

For enhanced safety and compliance, the 20-HIM-A0 adheres to **UL, CSA, and IEC standards**, ensuring it meets rigorous industrial safety and performance requirements. Its **low-voltage release (LVR) feature** provides additional protection by disconnecting the motor in the event of a power failure, preventing unsafe restart conditions. The starter is also compatible with **Allen-Bradley s PowerFlex variable frequency drives (VFDs)** when used in conjunction with compatible control systems, enabling precise speed and torque control for applications requiring variable motor operation.

Whether deployed in **discrete manufacturing, HVAC systems, or material handling**, the 20-HIM-A0 delivers a balance of reliability, efficiency, and ease of use. Its **plug-and-play compatibility** with Rockwell Automation s ecosystem of controllers and software tools further simplifies implementation, making it a versatile choice for engineers and technicians seeking a dependable motor control solution. With its focus on durability, adaptability, and operational efficiency, the 20-HIM-A0 stands as a cornerstone component in modern industrial automation setups.

### **Pros and Cons of buying a Allen-Bradley 20-HIM-A0 (20HIMA0) HMI (Human-Machine Interface)**

The **Allen-Bradley 20-HIM-A0** is a compact, industrial-grade Human-Machine Interface (HMI) designed for automation applications. Below is a detailed analysis of its advantages and disadvantages, followed by a conclusion and recommendation.

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### **Pros of the 20-HIM-A0**

1. **Compact and Space-Efficient Design**

- The 20-HIM-A0 is a small, 2.7-inch touchscreen HMI, making it ideal for applications where space is limited, such as control panels, machinery, or compact automation systems.

- Its compact size does not compromise functionality, allowing it to be mounted in tight spaces without sacrificing usability.

2. **Industrial-Grade Durability**

- Built to withstand harsh industrial environments, it features an **IP65 rating**, meaning it is protected against dust and low-pressure water jets.

- It operates reliably in temperature ranges from **-20 C to 60 C**, making it suitable for outdoor or temperature-varying applications.

- The rugged construction ensures longevity in demanding industrial settings.

3. **Easy Integration with Allen-Bradley and Rockwell Automation Systems**

- The 20-HIM-A0 is fully compatible with **Allen-Bradley PLCs (e.g., CompactLogix, ControlLogix, Micro800)** and other Rockwell Automation products.

- It supports **EtherNet/IP, DeviceNet, and ControlNet** communication protocols, simplifying integration into existing automation networks.

- Works seamlessly with **Studio 5000** and **RSLogix 5000** software for programming and configuration.

4. **User-Friendly Interface**

- The **2.7-inch capacitive touchscreen** provides a responsive and intuitive interface for operators.

- Supports **graphical user interfaces (GUIs)** with drag-and-drop programming, allowing for quick setup of custom screens.

- Includes **pre-built templates and standard screens** for common industrial applications, reducing development time.

5. **Low Power Consumption**

- Operates efficiently with **low power requirements**, reducing energy costs and making it suitable for battery-powered or energy-sensitive applications.

6. **Cost-Effective for Small to Medium Applications**

- As a compact HMI, it is more affordable than larger industrial monitors while still providing robust functionality.

- Ideal for **single-machine control, small automation cells, or as a secondary HMI** in larger systems.

7. **Modular and Upgradable**

- Can be easily expanded with additional modules (e.g., communication adapters) if future requirements grow.

- Supports **firmware updates** from Rockwell Automation, ensuring compatibility with new software and features over time.

8. **Good for Basic to Intermediate Automation Tasks**

- Suitable for applications requiring **real-time monitoring, data logging, and simple control logic**.

- Works well with **sensors, relays, and basic PLC programming** for process control.

---

### **Cons of the 20-HIM-A0**

1. **Limited Screen Size**

- The **2.7-inch display** is very small, which can be a drawback for applications requiring **detailed visualizations, complex dashboards, or multi-screen setups**.

- Operators may find it difficult to read fine details, especially in bright or low-light conditions.

2. **No Color Option (Monochrome Display)**

- The screen is **grayscale only**, which can make it less visually appealing for applications where color coding is essential (e.g., distinguishing between different alarms or statuses).

- Some users may prefer color for better readability and aesthetics.

3. **Basic Touchscreen Technology**

- Uses a **capacitive touchscreen**, which may not be as durable as **resistive touchscreens** in environments with frequent cleaning or heavy wear.

- Resistive touchscreens can handle more abrasive cleaning methods and are less prone to damage from gloves or debris.

4. **Limited Expansion and Advanced Features**

- Unlike larger HMIs (e.g., **FactoryTalk View SE or PanelView Plus**), it lacks **advanced features such as:

- **Multi-touch support**

- **High-resolution displays**

- **Built-in barcode scanners or RFID readers**

- **Advanced security features (e.g., biometric authentication)**

- Not ideal for **complex SCADA or enterprise-level applications**.

5. **Software Limitations**

- While compatible with **Studio 5000**, some advanced features (e.g., **3D visualizations, advanced analytics**) may require more powerful HMIs.

- The **graphical programming interface** is functional but not as feature-rich as those in higher-end Allen-Bradley HMIs.

6. **No Built-In Web Server or Remote Access**

- Unlike some newer HMIs, it does **not natively support web-based remote monitoring** without additional software or hardware.

- Requires **EtherNet/IP or other protocols** for remote access, which may add complexity.

7. **Potential Compatibility Issues with Non-Rockwell Systems**

- While it works well with **Allen-Bradley PLCs**, integrating it with **non-Rockwell systems (e.g., Siemens, Mitsubishi, Schneider)** may require **additional gateways or protocol converters**.

- Some third-party software may not fully support its communication protocols.

8. **Limited Long-Term Availability**

- As a **legacy or semi-recent model**, Rockwell Automation may **discontinue support or firmware updates** in the future, potentially affecting long-term reliability.

- Users should ensure **compatibility with their existing PLCs and software versions**.

---

### **Conclusion**

The **Allen-Bradley 20-HIM-A0** is a **reliable, compact, and cost-effective HMI** well-suited for **small to medium industrial applications** where space is limited, and basic to intermediate control is required. Its **industrial durability, easy integration with Rockwell Automation systems, and low power consumption** make it a strong choice for **single-machine control, automation cells, or as a secondary interface**.

However, its **small monochrome screen, lack of color, and limited advanced features** may make it **less ideal for applications requiring detailed visualizations, complex dashboards, or high-resolution displays**. Additionally, users who need **remote web access, multi-touch, or non-Rockwell compatibility** may find it insufficient without additional hardware or software.

---

### **Recommendation**

**Buy the 20-HIM-A0 if:**

You need a **compact, rugged HMI** for **basic to intermediate automation tasks**.

Your application requires **EtherNet/IP or DeviceNet integration** with **Allen-Bradley PLCs**.

Space is limited, and you prioritize **durability and low power consumption**.

You are working with **Studio 5000 or RSLogix 5000** and need a **simple, cost-effective solution**.

The **2.7-inch monochrome display** is sufficient for your monitoring and control needs.

**Consider an alternative if:**

You require a **larger, high-resolution color display** (e.g., **PanelView Plus, FactoryTalk View SE**).

Your application needs **advanced features like multi-touch, 3D visualizations, or built-in barcode scanning**.

You need **remote web access or cloud connectivity** without additional hardware.

You are integrating with **non-Rockwell automation systems** and require broader protocol support.

Future scalability is a concern, and you may need a more **expandable HMI** in the long term.

**Best Alternatives to Consider:**

- **Allen-Bradley PanelView Plus (e.g., 7-inch or 10-inch color touchscreen)** For better visuals and advanced features.

- **Rockwell FactoryTalk View SE** For SCADA-level applications with larger displays.

- **Siemens KTP700 or KTP1200** If working with Siemens PLCs and needing color and higher resolution.

- **Moxa AWK- series** For industrial HMIs with **web server support and broader protocol compatibility**.

---

### **Final Verdict**

The **20-HIM-A0 is a solid choice for budget-conscious users** who need a **reliable, compact HMI for basic automation** within the Rockwell ecosystem. However, for applications requiring **better visuals, advanced features, or non-Rockwell compatibility**, investing in a **larger or more feature-rich HMI** may be justified. Always ensure that the **PLC, software, and future needs** align with the capabilities of the 20-HIM-A0 before purchasing.

Details:

All products are guaranteed to be working but may show signs of use. ALLEN BRADLEY 20-HIM-A0 / 20HIMA0 USED FILLER PLATE, USED WHEN NO HIM IS INSTALLED, USE WITH POWERFLEX 70-700-700H-700S-700L-750-753-POWERFLEX DC. Call to use a shipping service other than the ones listed. The product is used surplus.

Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.

part #: 20hima0 prices

  • $49.95-$149.99

specifications sensoindustria:

  • brand: Allen Bradley
  • mpn: 20-him-a0
  • part type: Module

shipping sensoindustria:

  • transit: 2-4 Days
  • type: Fixed
  • class: Standard
  • cost: $12.90
  • service: Standard

returns sensoindustria:

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

general sensoindustria:

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

payments sensoindustria:

  • credit card: Diners-club
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seller sensoindustria:

  • city: 1 Millennium Dr, Willingboro, NJ 08046
  • rating: 99.7%
  • # reviews: 2016 06

offer sensoindustria:

  • quantity: 8
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: April 28, 2026
part type: module,
category: business & industrial > plcs hmis > plc peripheral modules > plc input output modules, sku: 22449872496712813,
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