SCHNEIDER ELECTRIC BMXDRC0805 Modicon Module M340 8-RELAY

( Brand: Schneider Electric ), ( Manufacturer Part Number: BMXDRC0805 ), ( Model: M340/580 ), ( Type: Isolated Relay Output Module ), ( Analog/digital: Digital ), ( Controller Platform: X-80 ), ( Country Of Origin: France )

Review SCHNEIDER ELECTRIC Modicon Output Module Guaranteed Working

The **Schneider Electric BMXDRC0805 Modicon 8-Relay Module** is a high-performance, industrial-grade output module designed to deliver reliable and precise control in demanding automation environments. Part of Schneider Electric s Modicon M580 series, this module offers eight independently controlled relay outputs, each capable of handling up to **5A at 250V AC** (or **5A at 30V DC**), making it ideal for applications requiring robust switching of motors, solenoids, lights, or other high-power loads. Engineered with Schneider Electric s commitment to quality and durability, the BMXDRC0805 is built to withstand harsh industrial conditions, featuring a robust metal enclosure that protects against dust, moisture, and electromagnetic interference, ensuring consistent operation in environments where reliability is critical.

This module integrates seamlessly with Schneider Electric s Modbus RTU or Modbus TCP communication protocols, allowing for easy integration into larger control systems via Ethernet or serial interfaces. The relay outputs are fully isolated from the control circuit, providing enhanced safety and preventing potential ground loops or voltage spikes from affecting the system. Each relay is equipped with a **mechanical life expectancy of over 100 million operations**, ensuring long-term reliability even in high-cycle applications. The module also supports **watchdog functionality**, which helps prevent system lockups by monitoring the controller s health, further enhancing operational stability.

The BMXDRC0805 is designed with modularity in mind, fitting into Schneider Electric s scalable M580 architecture, which allows users to expand their control systems with additional I/O modules as needed. Its compact yet sturdy form factor makes it suitable for installation in control panels, machine enclosures, or distributed automation setups. The module s **LED indicators** provide real-time status monitoring, allowing operators to quickly identify active relays, fault conditions, or communication issues. Whether used in manufacturing, process control, or building automation, this module delivers the precision, durability, and flexibility required to meet the demands of modern industrial applications. With Schneider Electric s reputation for innovation and performance, the BMXDRC0805 stands as a dependable solution for engineers seeking reliable relay control in their automation projects.

### **Pros and Cons of buying a Schneider Electric BMXDRC0805 (Modicon 8-Relay Module)**

1. **Reliability and Brand Reputation** Schneider Electric is a well-established manufacturer in industrial automation, known for durable and high-quality components. The Modicon series is particularly respected for its robustness in harsh environments.

2. **Compatibility with Modbus and PLC Systems** The BMXDRC0805 is designed to integrate seamlessly with Modbus RTU/TCP networks and works well with Schneider s Modicon PLCs (e.g., M340, M580, or newer EcoStruxure platforms). It also supports other PLC brands that use Modbus, expanding its usability.

3. **High Switching Capacity** Each relay can handle up to **8 A at 250 VAC** (or **10 A at 125 VAC**), making it suitable for controlling motors, solenoids, and other moderate-power loads in industrial applications.

4. **Isolation and Safety Features** The module provides **optical isolation** between the control and load sides, reducing noise and improving safety. It also includes **overload protection** for the relays, preventing damage from short circuits or excessive current.

5. **Compact and Modular Design** The module fits into standard **Modbus expansion slots** (e.g., in Modicon PLCs or third-party Modbus gateways), saving space in control panels. Its modular nature allows easy replacement if a relay fails.

6. **Wide Operating Temperature Range** It operates reliably between **-25 C and 70 C**, making it suitable for industrial environments with temperature fluctuations.

7. **Low Latency and Fast Switching** Relays typically switch within **10 20 ms**, which is fast enough for most automation tasks without requiring specialized high-speed modules.

8. **Cost-Effective for Basic Relay Control** Compared to building a custom relay rack or using individual relays, this module offers a cost-efficient solution for centralized control.

9. **Easy Configuration via Modbus** Since it communicates over Modbus, it can be programmed and monitored using standard PLC software (e.g., EcoStruxure, CodeSys, or third-party tools like Ignition or SCADA systems).

10. **Long Lifespan** Schneider Electric relays are designed for **millions of operations**, reducing maintenance needs over time.

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1. **Limited to 8 Relays** If you need more than eight outputs, you ll require additional modules (e.g., another BMXDRC0805 or a higher-capacity model like the BMXDRA0805 for analog outputs). This can increase cost and complexity.

2. **No Built-in Diagnostics for Individual Relays** While the module reports its status via Modbus, it does not provide detailed diagnostics (e.g., which specific relay has failed). Troubleshooting may require manual inspection.

3. **Modbus Dependency** The module relies on a PLC or Modbus master device to control the relays. If the communication fails, all relays will be unresponsive until the issue is resolved. This is a common limitation in Modbus-based I/O modules.

4. **No Built-in Overvoltage/Undervoltage Protection** The module does not protect against **spikes, surges, or voltage fluctuations** on the load side. External surge protectors or varistors may be needed for sensitive applications.

5. **Mechanical Wear Over Time** Relays have a finite lifespan due to contact wear. While Schneider s relays are durable, they will eventually fail after extensive use, requiring replacement.

6. **Limited Current Rating for Heavy Loads** The **8 A at 250 VAC** limit may be insufficient for high-power applications (e.g., large motors, high-current solenoids, or resistive loads like heating elements). For such cases, a higher-rated module (e.g., BMXDRA1605 for 16 A) or external contactors may be necessary.

7. **No Built-in Isolation for Control Voltage** The control side (Modbus connection) is not isolated from the load side in terms of grounding. Poor grounding practices could lead to noise or safety hazards.

8. **Compatibility Issues with Non-Modbus Systems** If your system does not use Modbus, you ll need a **Modbus-to-other-protocol converter** (e.g., Modbus to Ethernet/IP, Profibus, etc.), adding complexity and potential latency.

9. **No Built-in Timers or Counters** Unlike some advanced I/O modules, this does not include timers, counters, or analog inputs. For such functions, you d need separate modules.

10. **Potential for Heat Dissipation in Dense Installations** In high-density control panels, multiple relays switching simultaneously can generate heat. Ensure proper ventilation to avoid overheating.

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### **Conclusion**

The **Schneider Electric BMXDRC0805 (Modicon 8-Relay Module)** is a **reliable, cost-effective, and modular** solution for applications requiring **8 isolated relay outputs** controlled via Modbus. It excels in **industrial environments** where **durability, compatibility with Schneider PLCs, and ease of integration** are priorities. However, it has **limitations in scalability, diagnostics, and heavy-duty current handling**, making it less ideal for **high-power or complex control systems**.

If your application fits within its **8 A, 250 VAC limits** and you already have a **Modbus-compatible PLC**, this module is a **solid choice**. For **larger relay counts, higher currents, or advanced diagnostics**, consider alternatives like:

- **Schneider BMXDRA0805** (8 relay 2 analog inputs)

- **BMXDRA1605** (16 relay, higher current)

- **Third-party Modbus relay modules** (e.g., from ABB, Siemens, or Beckhoff)

- **Custom relay racks** for very high currents

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### **Recommendation**

You need **8 isolated relays** for **moderate-power loads ( 8 A, 250 VAC)**.

Your system uses **Modbus RTU/TCP** (e.g., Schneider Modicon PLC).

You prioritize **reliability, brand support, and ease of integration**.

Your budget is **moderate**, and you don t require advanced diagnostics or high current.

You need **more than 8 relays** (evaluate multiple modules or higher-capacity models).

Your loads require **higher currents (>8 A)** (consider BMXDRA1605 or external contactors).

You lack **Modbus compatibility** (requires a converter, adding complexity).

You need **built-in timers, counters, or analog inputs** (opt for a multi-function module).

Your environment has **extreme voltage fluctuations** (add external protection).

**Final Verdict:** For **standard industrial relay control within its specifications**, the BMXDRC0805 is a **well-suited, cost-effective purchase**. Always verify **current ratings, voltage compatibility, and PLC integration** before ordering to ensure it meets your exact requirements.

Details:

Condition Used Guaranteed Working. Type Modicon X80 8-Channel Relay Output Module. Model BMXDRC0805 13 available. You are purchasing a Schneider Electric Modicon BMXDRC0805 8-RELAY discrete output module.

part #: bmxdrc0805 prices

• $69.99-$550.00

specifications sensoindustria:

• brand: Schneider Electric
• mpn: Bmxdrc0805
• model: M340/580
• type: Isolated Relay Output Module
• analog/digital: Digital
• controller platform: X-80
• country of origin: France

general sensoindustria:

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

seller sensoindustria:

• city: Clovis, California
• rating: 99.4%
• # reviews: 1284

shipping sensoindustria:

• class: Standard, Expedited
• type: Calculated
• transit: 6-12 Days
• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery, USPS Priority Mail
• cost: $9.14
• carrier: USPS, FedEx

returns sensoindustria:

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

offer sensoindustria:

• options: Ship-to-home
• availability: In Stock
• best offers: True
• started: May 21, 2026
• sold: 0

payments sensoindustria:

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

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