MLR-020 MICROLITE Relay Module

Review MICROLITE Relay Module

The Microlite MLR-020 Relay Module is a versatile and compact solution for controlling electrical circuits using low voltage or digital signals. This relay module is designed for various applications where remote switching or automation is required.

This module features two normally open (NO) Form C SPDT relays, allowing independent control of two separate circuits. Each relay can handle a maximum load of 500V AC or 30V DC with a current capacity of 10A. The relays are mechanically operated, ensuring reliable and robust switching.

The MLR-020 is compatible with various input signals, including 3.3V to 5V DC logic levels and TTL signals. The module comes with opto-isolated inputs, ensuring electrical isolation between the control signal and the load, preventing potential short circuits and ensuring safety.

The relay module also features a built-in diode for each coil, which protects against inductive load voltage spikes. This feature helps improve the overall reliability and longevity of the module.

The MLR-020 is designed with a compact size of 36mm x 22mm x 12mm and comes with a screw terminal block for easy connection of the input and output wires. The module is also equipped with a status LED for each relay, indicating the current state of the switch.

This Microlite MLR-020 Relay Module is an excellent choice for DIY projects, automation systems, remote control applications, and other projects where reliable and efficient switching is necessary. With its versatile compatibility, robust design, and compact size, this relay module offers great value for its price.

The Microlite MLR-020 Relay Module is a compact and versatile electrical component commonly used to switch AC or DC loads with the help of a low voltage signal. Here are some pros and cons that might help you decide whether to purchase this relay module:

1. Compact Size: The MLR-020 is a small and lightweight relay module, making it easy to integrate into various projects and applications.

2. Versatile: It can be used with a wide range of voltages, from 6V to 35V DC, and can switch loads up to 20A at 250V AC or 30A at 24V DC.

3. Easy to Use: The module has a simple design, with a single-pole double-throw (SPDT) switch that can be controlled by an external signal.

4. Cost-Effective: The MLR-020 is an affordable option compared to other similar relays on the market.

5. Safety: The module includes over-current and over-voltage protection, making it safer to use than some other relays.

1. Manual Operation: The MLR-020 does not come with built-in optical or electronic sensors, so it requires manual control through an external signal.

2. Coil Voltage: The module's coil voltage is relatively high, at 12V DC, which may require additional wiring and components in some applications.

3. Limited Switching Frequency: The MLR-020 is not designed for high-frequency switching applications, and can cause damage if used in this way.

4. Mechanical Noise: The relay contacts can generate some mechanical noise when switching, which may not be suitable for applications where quiet operation is necessary.

In conclusion, the Microlite MLR-020 Relay Module is a cost-effective and versatile option for switching AC or DC loads, especially in applications where compact size is a priority. However, it may not be suitable for high-frequency applications or those requiring quiet operation. Overall, the MLR-020 is a reliable and easy-to-use relay module that offers good value for its price.

Based on the information provided, if you are looking for a small, affordable, and versatile relay module for switching AC or DC loads, the Microlite MLR-020 could be a good option for you. However, if you require high-frequency switching or quiet operation, you may want to consider other options.

Details:

Multiple available. Used condition.

specifications genpurrelays:

• brand: Microlite
• mpn: Mlr-020
• part type: Module
• current type: Ac/dc
• maximum amperage: 20 A
• application: Electrical Wiring, Light Control

seller genpurrelays:

• rating: 99.7%
• city: boonville, missouri
• # reviews: 1447

shipping genpurrelays:

• service: usps ground advantage
• transit: 5-11 days
• carrier: usps
• class: standard
• type: calculated

offer genpurrelays:

• availability: in stock
• in stock #: 5
• started: december 29, 2025
• sold #: 11
• options: ship-to-home
• prices: $13.25–$30.00
• item condition:
  • Used
  • New
  • New – Open box
  • For parts or not working

returns genpurrelays:

• time: 30 days
• method: money back
• paid by: seller
• policy: returns accepted

general genpurrelays:

• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays

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