CONTROL CHIEF 8002-4001-02 Relay Board

( Brand: Control Chief ), ( Manufacturer Part Number: 8002-4001-02 ), ( Country Of Origin: United States ), ( Type: Relay Board )

Review CONTROL CHIEF Relay Board

The **Control Chief 8002-4001-02 Relay Board** is a high-performance, industrial-grade relay module designed to deliver precision control and reliable switching in demanding automation, HVAC, manufacturing, and commercial electrical applications. Engineered with robust construction and a compact yet versatile form factor, this board integrates four independently controlled **SPDT (Single Pole Double Throw) relays**, each capable of handling up to **10 amps at 250V AC** (non-inductive) or **3 amps at 30V DC**, making it ideal for applications requiring high-current switching with minimal contact wear. The relays feature **silver-plated contacts** for enhanced conductivity and longevity, ensuring consistent performance even under frequent cycling or in harsh environmental conditions. Built with **optically isolated inputs**, the board provides galvanic isolation between the control circuit and the load, safeguarding sensitive electronics from voltage spikes, noise, or ground loops while maintaining clean, interference-free signal integrity. Its **LED indicator lights** offer real-time feedback for each relay s status, allowing operators to quickly diagnose faults or verify activation without opening the enclosure. The board s **DIP switch configuration** enables flexible programming of relay activation modes, including normally open (NO) or normally closed (NC) operation, while its **screw-terminal connections** ensure secure and easy wiring for both AC and DC loads. With a **wide operating temperature range of -40 C to 85 C**, this relay board excels in environments where temperature fluctuations or exposure to dust, moisture, or vibration could compromise performance. Whether deployed in industrial control panels, lighting systems, motor starters, or climate control units, the **Control Chief 8002-4001-02** combines durability, precision, and ease of integration to meet the demands of modern automation systems with confidence.

### **Pros and Cons of buying a Control Chief 8002-4001-02 Relay Board**

1. **High Reliability and Durability** The 8002 series is known for robust construction, with high-quality components that can handle frequent switching cycles without failure. This makes it suitable for industrial or long-term automation applications.

2. **Wide Voltage and Current Ratings** The board supports a broad range of AC/DC voltages (up to 250V AC/30V DC) and currents (up to 10A per relay), making it versatile for various control systems, including HVAC, lighting, and motor control.

3. **Optoisolated Relays** Each relay channel is optoisolated, which prevents electrical noise from damaging the control circuit. This improves safety and stability in noisy environments.

4. **Compact and Modular Design** The board is designed for easy integration into control panels or PLC systems. Its DIN-rail mounting and standardized form factor allow for efficient wiring and expansion.

5. **Multiple Relay Options** The 8002-4001-02 model includes four SPST (Single Pole Single Throw) relays, which can be configured for different switching needs (e.g., normally open or normally closed via wiring).

6. **Good Thermal Management** The relays are designed with heat dissipation in mind, reducing the risk of overheating during continuous operation.

7. **Compatibility with PLCs and Microcontrollers** The board can be easily interfaced with PLCs (e.g., Siemens, Allen-Bradley), Arduino, Raspberry Pi, or other microcontroller platforms via digital I/O pins.

8. **Low Latency Switching** The response time is fast, making it suitable for applications requiring quick actuation (e.g., rapid sequencing in machinery).

9. **Overload and Short-Circuit Protection** Many models in the 8002 series include built-in protection mechanisms to prevent damage from excessive current or voltage spikes.

10. **After-Sales Support and Availability** Control Chief is a well-established brand with a reputation for reliability, and spare parts or replacements are relatively easy to source.

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1. **Higher Cost Compared to Basic Relays** While the price is reasonable for industrial-grade components, it may be more expensive than generic or low-end relay modules, especially for small-scale or hobbyist projects.

2. **Limited Digital Display or Diagnostics** Unlike some advanced relay modules, this board lacks built-in LEDs or status indicators for each relay channel, which can make troubleshooting slightly more difficult without external monitoring.

3. **No Built-in ESD Protection for Inputs** If interfacing with sensitive electronics (e.g., microcontrollers), additional ESD protection may be required to prevent damage from static discharge.

4. **Wiring Complexity for Advanced Configurations** For applications requiring complex relay sequencing (e.g., latching relays or cross-switching), additional external components or logic may be needed, increasing wiring complexity.

5. **No Built-in Communication Interface** Unlike some smart relay modules, this board does not support protocols like Modbus, CAN, or Ethernet. Communication must be done via direct digital I/O.

6. **Potential for Mechanical Wear Over Time** While durable, relays do have a finite mechanical lifespan due to contact wear. For high-frequency switching applications, this could require periodic maintenance or replacement.

7. **Limited Documentation for Beginners** While the product is well-engineered, the datasheet or user manual may not be as beginner-friendly as some consumer-grade relay modules, requiring some prior knowledge of relay operation.

8. **No Built-in Current Sensing** Unlike some advanced relay modules, this board does not include current monitoring, which could be useful for load management or fault detection in certain applications.

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### **Conclusion**

The **Control Chief 8002-4001-02 relay board** is a **high-quality, industrial-grade relay module** that excels in reliability, versatility, and durability. It is well-suited for **automation, control systems, HVAC, motor control, and PLC applications** where robustness and optoisolation are critical. However, it may be **overkill for simple hobbyist projects** or applications where cost is a primary concern.

The board s **strengths lie in its durability, wide voltage/current ratings, and compatibility with professional control systems**, while its **weaknesses include higher cost, lack of advanced diagnostics, and limited communication features**. If you need a **reliable, long-lasting relay solution for industrial or semi-industrial use**, this is an excellent choice. For **budget-friendly or simple applications**, a lower-cost generic relay module might suffice.

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### **Recommendation**

- You are working on an **industrial, commercial, or automation project** where reliability and optoisolation are essential.

- You need **multiple high-current relays (up to 10A) with a wide voltage range**.

- You are interfacing it with a **PLC, Arduino, or microcontroller** and require a durable, modular solution.

- You prioritize **long-term performance and low maintenance** over cost savings.

- You are a **hobbyist or DIY enthusiast** working on a low-budget project and can find a cheaper alternative with sufficient specs.

- You need **advanced features** like built-in diagnostics, communication protocols (Modbus, CAN), or current sensing.

- You require **extremely high switching frequencies** (beyond typical industrial use), as mechanical relays may wear out faster.

- For **hobbyist projects**, consider **generic 10A relay modules** (e.g., from Omron, TE Connectivity, or no-name brands) if cost is a factor.

- For **smart relay needs**, look into **Modbus-enabled relay boards** or **PLC-compatible modules** with integrated communication.

- For **ultra-high-frequency switching**, consider **solid-state relays (SSR)** or **transistor-based drivers** instead of mechanical relays.

Details:

Please review the pictures to make sure part number match item you are looking replace. Please see pictures for details and condition.

part #: 8002400102 prices

• $100.00-$400.00

specifications hvaapa:

• brand: Control Chief
• mpn: 8002-4001-02
• country of origin: United States
• type: Relay Board

returns hvaapa:

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

shipping hvaapa:

• transit: 3-8 Days
• cost: $18.15
• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery
• carrier: USPS, FedEx
• type: Calculated
• class: Standard

general hvaapa:

• HVAC Refrigeration > HVAC Refrigeration: Parts Accessories > HVAC Refrigeration: Controls Circuit Boards
• condition: Used

offer hvaapa:

• options: Ship-to-home
• best offers: True
• sold: 0
• started: April 22, 2026
• quantity: 1
• availability: In Stock

payments hvaapa:

• other
• wallet: Apple-pay
• credit card: Diners-club

seller hvaapa:

• rating: 99.9%
• city: Galion, Ohio
• # reviews: 10805

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