SCHNEIDER 53811U Digital Relay Module Plc BMXDRA0804T 80Q 125VDC 0.3A

( Brand: Schneider ), ( Manufacturer Part Number: 53811U ), ( Part Type: Digital Module )

Review SCHNEIDER Digital 80q Relay 125vdc 0.3a Module Plc

The **Schneider Electric 53811UBMXDRA0804T Digital 80Q Relay Module** is a high-performance, compact industrial relay designed for seamless integration into programmable logic controllers (PLCs) and automation systems. Engineered with precision and reliability in mind, this module offers an advanced 80Q (80 ampere) contact rating, making it ideal for applications requiring robust switching capabilities while maintaining minimal power consumption. Powered by a 125V DC supply, it delivers consistent performance across a wide operational range, ensuring stability even in demanding environments. The digital relay features a modular design, allowing for easy installation and replacement within Schneider s Modicon or EcoStruxure architecture, while its compact footprint optimizes space utilization in control panels. With a current rating of 0.3A, it efficiently handles both inductive and resistive loads, reducing the risk of arcing and extending the lifespan of connected components. This module supports digital signaling, enabling precise control and monitoring through PLC communication protocols, making it a versatile choice for industrial automation, manufacturing, and process control systems. Its robust construction, including reinforced contacts and thermal management, ensures long-term durability under continuous operation, while its compatibility with Schneider s ecosystem enhances system integration and scalability. Whether used in motor control, lighting management, or machine automation, this relay module provides a reliable, high-efficiency solution for demanding industrial applications.

### **Pros and Cons of buying a Schneider 53811U BMXDRA0804T Digital 80Q Relay Module (125V DC, 0.3A)**

1. **High Reliability and Quality** Schneider Electric is a well-established brand known for industrial-grade components, ensuring durability and long-term performance in automation and control systems.

2. **Compact and Space-Efficient Design** The module is designed for modular PLC systems, allowing for efficient use of control panel space without sacrificing functionality.

3. **Digital Output Capability** Being a digital relay, it provides precise control over high-voltage or high-current loads, making it suitable for applications requiring clean switching (e.g., motors, solenoids, or indicators).

4. **Low Power Consumption** Operating at **125V DC** with a **0.3A** current rating means it is energy-efficient and suitable for low-power control applications.

5. **Compatibility with Schneider PLCs** Designed specifically for Schneider PLC systems (such as Modicon or Quantum), ensuring seamless integration with existing automation setups.

6. **Modular and Replaceable** As part of a modular relay rack, it can be easily swapped out if damaged, reducing downtime in industrial environments.

7. **Wide Operating Temperature Range** Most Schneider relays are built to function reliably in industrial environments, often with extended temperature ranges (-25 C to 70 C or similar).

8. **Low Contact Resistance** The relay contacts are designed to minimize resistance, reducing heat buildup and improving longevity.

9. **Supports Remote Control** Useful in distributed control systems where centralized monitoring and actuation are required.

10. **Backward and Forward Compatibility** Schneider s modular relays often support multiple PLC generations, ensuring long-term usability.

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1. **Limited Current Rating (0.3A)** The **0.3A** current capacity restricts its use to low-power loads. For higher current applications (e.g., motors, heavy actuators), a higher-rated relay (e.g., 5A, 10A, or 16A) would be necessary.

2. **Voltage Rating (125V DC)** While sufficient for many low-voltage applications, it may not be suitable for high-voltage DC systems (e.g., 240V DC or higher).

3. **Potential Latency in Digital Relays** Unlike solid-state relays (SSR), mechanical relays (like this one) have a slight switching delay ( 5-20ms), which may be a concern in high-speed control applications.

4. **Mechanical Wear Over Time** Relays have moving contacts that can wear out with frequent switching, potentially leading to contact arcing or failure if not properly maintained.

5. **Cost Compared to Alternatives** While not excessively expensive, Schneider relays may be pricier than generic or off-brand relays, especially in bulk purchases.

6. **Requires Proper Wiring and Isolation** Incorrect wiring (e.g., reverse polarity, improper grounding) can damage the relay or create safety hazards.

7. **Limited Overload Protection** Unlike some smart relays, this module does not inherently include overload or short-circuit protection, requiring external safeguards.

8. **Not Suitable for High-Frequency Switching** If used in applications requiring rapid on/off cycles (e.g., high-speed motor control), the relay s mechanical nature may lead to premature failure.

9. **Dependence on PLC for Control** Since it is a digital input/output module, it requires a PLC to operate, adding complexity if used in standalone applications.

10. **Potential for Contact Bounce** Mechanical relays can experience contact bounce, which may require debouncing circuits in sensitive applications.

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The **Schneider 53811U BMXDRA0804T digital relay module** is an excellent choice for **low-power, precise control applications** within Schneider PLC systems. Its **reliability, modular design, and compatibility** make it ideal for industrial automation where space and integration are critical. However, its **low current and voltage ratings (0.3A, 125V DC)** limit its use to smaller loads, and its **mechanical nature** introduces potential wear and switching delays compared to solid-state alternatives.

If your application involves **high-current or high-voltage loads, rapid switching, or standalone control**, you may need a different relay type (e.g., a higher-rated mechanical relay, SSR, or solid-state relay). For **low-power, PLC-integrated control systems**, this Schneider relay is a **strong, dependable option**.

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- You are working within a **Schneider PLC ecosystem** and need a reliable, modular digital relay.

- Your application requires **precise switching of low-power loads ( 0.3A, 125V DC)**.

- You prioritize **industrial-grade quality, compact design, and long-term compatibility**.

- You need **higher current or voltage handling** (e.g., 5A, 24V DC, or 230V AC).

- Your application demands **faster switching speeds** (solid-state relays may be better).

- You are working in a **cost-sensitive environment** where generic relays suffice.

- You require **built-in protection features** (e.g., overload, short-circuit detection).

For most **standard PLC-based control systems with low-power loads**, this Schneider relay is a **solid, recommended choice**. Always verify your specific voltage, current, and environmental requirements before purchasing.

Details:

Manufacturer: Schneider. Warranty: 6 months. Condition: Used. Specifications.

Part#: BMXDRA0804T. Product: Digital 80Q Relay.

part #: 53811u prices

• $169.86-$239.88

specifications sensoindustria:

• brand: Schneider
• mpn: 53811u
• part type: Digital Module

seller sensoindustria:

• # reviews: 4150
• rating: 99.7%
• city: Champlain, New York, United-States

general sensoindustria:

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

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offer sensoindustria:

• sold: 0
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• quantity: 4
• availability: In Stock
• started: March 27, 2026
• options: Ship-to-home

shipping sensoindustria:

• transit: 4-8 Days
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• service: Expedited
• type: Fixed

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