Product Name:

Schneider SR3B101BD – Modular Smart Relay
Series: Zelio Logic SR2/SR3
I/O: 10 Inputs/Outputs
Power Supply: 24V DC
With Real-Time Clock (RTC) and Display
Outputs: 4 Relay Outputs

1. General Description:

The Schneider SR3B101BD is a modular smart relay from the Zelio Logic SR2/SR3 series, designed for small-scale automation applications. It combines programmability, real-time control, and an onboard display in a compact device that operates on 24V DC.

This model includes 10 total I/Os, a real-time clock (RTC) for time-based scheduling, and a clear LCD display for monitoring and manual interaction. It also includes 4 relay outputs for switching loads.

2. Key Features:

3. Inputs & Outputs (Typical Configuration):

• 6 Digital Inputs:
  Accept 24V DC signals (from sensors, push buttons, etc.)

• 4 Relay Outputs:

  • Suitable for controlling lamps, contactors, relays, or small loads

  • Each output can handle up to ~8A (check datasheet for exact value)

4. Main Functionalities:

• Programmable Logic Control:
  Can perform functions such as:

  • Timers and counters

  • Sequential control

  • Pulse generation

  • Delays and logic gates

  • On/off cycles

• Real-Time Clock (RTC):
  Enables time- and date-based control (e.g., turning lights on at 6:00 PM and off at 10:00 PM).

• On-Device Display:
  LCD screen allows:

  • Monitoring input/output status

  • Viewing alarms or messages

  • Navigating and adjusting parameters

  • Manual control and diagnostics

• User-Friendly Programming:

  • Use Zelio Soft on a PC for graphical programming (ladder diagram or function blocks)

  • Simple logic can be configured via onboard keys

5. Applications:

Perfect for simple to medium automation tasks like:

• Lighting control systems

• Pump and motor control

• Irrigation systems

• Access control

• Building management systems

• Small machines and conveyors

Ideal where PLCs would be overkill or cost-prohibitive.

6. Advantages:

• Compact size, DIN rail mounting

• 24V DC operation – compatible with low-voltage control systems

• Built-in clock for scheduled operations

• Easy setup, even for non-experts

• Expandable via Zelio Logic extensions if needed

7. Summary:

The Schneider SR3B101BD is a modular, programmable smart relay with 10 I/O, 24V DC power, 4 relay outputs, a real-time clock, and an LCD display. It’s designed for small automation systems needing flexible, time-based, and user-programmable control, making it ideal for both industrial and building applications.