ALLEN BRADLEY 181435-A04 Automation

( Brand: Allen Bradley ), ( Manufacturer Part Number: 181435-A04 )

Review ALLEN BRADLEY 181435a04 Used

The **Allen-Bradley 181435-A04** is a high-performance, compact industrial motor starter designed for demanding applications in manufacturing, process control, and automation environments. Part of Rockwell Automation s **PowerFlex** series, this motor starter is engineered to provide reliable protection, control, and efficiency for three-phase AC induction motors ranging from **0.75 to 20 horsepower (0.56 to 15 kW)** at standard voltages of **208V, 230V, 460V, or 480V**. With a robust **NEMA 1** enclosure, it is built to withstand harsh industrial conditions, including temperature fluctuations, vibration, and exposure to dust and moisture, making it ideal for use in factories, warehouses, and other rugged settings.

At its core, the **181435-A04** features a **thermal overload protection system** that continuously monitors motor current to prevent overheating, ensuring extended equipment lifespan while adhering to safety standards. The starter incorporates a **solid-state contactor** with a **silicon-controlled rectifier (SCR) or transistorized design**, allowing for precise control of motor startup, soft stopping, and variable speed applications when paired with compatible drives. This flexibility makes it suitable for applications requiring smooth acceleration, reduced mechanical stress, and energy savings such as conveyor systems, pumps, compressors, and HVAC equipment.

The **181435-A04** is equipped with a **120V AC or 24V DC control circuit**, providing compatibility with a wide range of PLCs, human-machine interfaces (HMIs), and other automation controllers. Its **compact, space-saving design** allows for easy integration into control panels, reducing installation complexity while maintaining high performance. Additionally, the starter includes **auxiliary contacts** for remote signaling, fault indication, and interlocking, enhancing system monitoring and troubleshooting capabilities. For enhanced diagnostics, it supports **Rockwell Automation s FactoryTalk View** and other industrial software platforms, enabling real-time performance tracking and predictive maintenance.

Built with **high-quality materials**, including **insulated gate bipolar transistors (IGBTs)** and **overload relays with adjustable trip settings**, the **181435-A04** ensures durability and reliability in continuous operation. Its **low inrush current** design minimizes electrical stress on the system during startup, while its **fast response time** allows for immediate protection against overloads or short circuits. The starter also complies with **UL, CSA, and IEC standards**, ensuring compliance with global safety regulations. Whether used in standalone applications or as part of a larger automation system, the **Allen-Bradley 181435-A04** delivers dependable motor control with efficiency, flexibility, and long-term operational integrity.

### **Pros and Cons of buying a Allen-Bradley 181435-A04 (181435A04) PLC Module**

#### **Overview**

The **Allen-Bradley 181435-A04** is a **1800 Series CompactLogix PLC module** with **4 analog input channels (0-10V, 0-20mA, 4-20mA)** and **no built-in communication ports** (requires an external module like the 1761-NET-CPX for Ethernet/IP). It is commonly used in industrial automation for control applications requiring analog signal processing.

---

### **Pros**

1. **Compatibility with CompactLogix Family**

- Seamlessly integrates with other **1800 Series PLCs** (e.g., 1769-L30ERM, 1769-L32ERM) and **ControlLogix** systems via backplane or remote I/O.

- Supports **RSLogix 5000, Studio 5000, and FactoryTalk** software for programming and monitoring.

2. **Analog Input Flexibility**

- Supports **multiple analog input types** (0-10V, 4-20mA, 0-20mA), making it versatile for sensors like pressure, temperature, and flow transmitters.

- **16-bit resolution** (better precision than some cheaper alternatives).

3. **Reliability & Industrial Build**

- Designed for **harsh industrial environments** (wide temperature range, vibration resistance).

- **Long-term availability** from Rockwell Automation (though some newer projects may prefer more modern PLCs).

4. **Cost-Effective for Basic Analog Control**

- More affordable than some **ControlLogix** or **PowerFlex** alternatives for simple analog applications.

- Often found in **used/refurbished** markets at lower prices.

5. **Backward Compatibility**

- Works with **legacy systems** still using **RSLogix 5000** or older firmware.

- Can be paired with **1761-NET-CPX** for Ethernet/IP communication if needed.

6. **Modular & Expandable**

- Can be combined with other **1800 Series modules** (digital I/O, timers, counters) to build a customized control system.

- Supports **remote I/O** (1769-I/O modules) for distributed control.

---

### **Cons**

1. **No Built-In Communication Port**

- **Does not have Ethernet/IP, serial (RS-232/485), or wireless** connectivity.

- Requires an **additional module (e.g., 1761-NET-CPX, 1761-CFP)** for networking, increasing cost.

- **Limited to backplane or remote I/O communication** unless external modules are added.

2. **Outdated Technology Compared to Newer PLCs**

- **1800 Series is older** than **ControlLogix (5500/5560), CompactLogix L3x/L7x, or Micro800**.

- **Lacks modern features** like built-in security (TAC), advanced diagnostics, or cloud integration.

- **Studio 5000 is more complex** than newer IDEs like **CodeSys or Ignition**.

3. **Limited Analog Channels**

- Only **4 analog inputs** insufficient for applications requiring **more than 4 signals**.

- No analog **outputs** (must use a separate module like **1769-AO**).

4. **Higher Power Consumption**

- Draws more power than some **microPLCs (e.g., Micro800, S7-1200)**.

- Requires proper **power supply sizing** (e.g., 1769-PB or 1769-PB2).

5. **Programming Complexity**

- **RSLogix 5000/Studio 5000** has a steeper learning curve compared to **free/alternative PLC software** (e.g., CodeSys, Ignition).

- **No free trial** for full Studio 5000 functionality (unlike some open-source options).

6. **Potential Obsolescence Risks**

- While still supported, **Rockwell is phasing out some 1800 Series modules** in favor of newer architectures.

- **Long-term firmware updates** may be limited compared to newer PLCs.

7. **No Built-In HMI Integration**

- Requires **separate HMI (e.g., FactoryTalk View, PanelView)** for human-machine interface, adding cost.

- **No built-in web server** for remote monitoring without extra modules.

8. **Physical Size & Installation Constraints**

- **Larger footprint** than some microPLCs, requiring more space in control panels.

- **Backplane-based systems** can be less flexible than **standalone or modular** alternatives.

---

### **Conclusion**

- You already have a **1800/ControlLogix infrastructure**.

- Your project **does not need advanced networking or HMI features**.

- You are working with **legacy systems** or need **backward compatibility**.

- Cost is a **primary concern**, and you can justify the need for an external communication module.

- **More analog I/O** (outputs, higher channels),

- **Built-in Ethernet/IP or wireless connectivity**,

- **Simpler programming (e.g., CodeSys, Ignition),**

- **Modern security and cloud features,**

- **A more compact or cost-effective solution,**

then **newer PLCs (e.g., CompactLogix L3x/L7x, Micro800, S7-1200, or even a small ControlLogix 5560)** may be better alternatives.

---

### **Recommendation**

- You are **extending an existing 1800/ControlLogix system**.

- Your budget is **limited**, and you can pair it with a **1761-NET-CPX** for networking.

- You need **4 analog inputs** in a **proven industrial PLC**.

- You need **more analog I/O** **1769-AI (e.g., 1769-AI16)** or **ControlLogix with analog modules**.

- You want **simpler programming** **Micro800, S7-1200, or CodeSys-based PLCs**.

- You need **built-in Ethernet/IP** **CompactLogix L3x/L7x or ControlLogix 5560**.

- You are **starting a new project** **Evaluate newer PLCs** for better long-term support.

- Ensure the **module is not damaged** (check for physical wear, firmware compatibility).

- Verify **power supply and backplane compatibility** with your system.

- Consider **warranty options** if buying from a third party.

If possible, **test the module in your system before finalizing purchase** to confirm functionality.

Details:

Sells new and surplus product develops channels to purchase such. Call to use a shipping service other than the ones listed. 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 #: 181435a04 prices

• $70.86-$78.73

specifications automationjack:

• brand: Allen Bradley
• mpn: 181435-a04

payments automationjack:

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

returns automationjack:

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

seller automationjack:

• # reviews: 1987 74
• rating: 99.6%
• city: 1 Millennium Dr, Willingboro, NJ 08046

general automationjack:

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

offer automationjack:

• availability: In Stock
• started: April 10, 2026
• quantity: 1
• options: Ship-to-home
• sold: 0

shipping automationjack:

• service: Standard
• class: Standard
• transit: 29-34 Days
• cost: $12.90
• type: Fixed

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