Schneider SR2B121FU Compact Smart Relay

Overview

The Schneider SR2B121FU Compact Smart Relay is a programmable control solution designed for efficient automation of small-scale industrial and commercial applications. It provides flexible logic programming, reliable switching performance, and simple configuration for machine control, lighting systems, HVAC applications, and basic automation processes.

General Information

Part Number: SR2B121FU

Manufacturer: Schneider Electric

Brand: Schneider Electric

Country of Origin: France

Series: Zelio Logic

Product Type: Compact Smart Relay

Control Type: Programmable Logic Control Relay

Mounting Method: DIN Rail Mount

Application: Industrial Automation, Building Control, Small Machine Systems

Power Specifications

Supply Voltage: 100–240 V AC

Frequency: 50/60 Hz

Power Consumption: Low Power Operation

Input Type: Digital Inputs

Output Type: Relay Outputs

Protection Features: Overvoltage Protection, Short-Circuit Protection, Thermal Protection

Status Indicators: LED Indicators for Power, Run, and Fault Status

Memory Function: Program Storage with Data Retention

Communication & Interface

Programming Interface: PC Programming Connection

Programming Method: Ladder Logic and Function Block Diagram (FBD)

Digital Inputs: 12 Inputs

Relay Outputs: 8 Outputs

Display Interface: Integrated LCD Display and Keypad

Diagnostic Functions: Program Monitoring, Fault Display, System Diagnostics

Expansion Capability: Supports Expansion Modules for Extended Control Functions

Environmental

Operating Temperature: -20°C to +55°C

Storage Temperature: -40°C to +70°C

Relative Humidity: 10% to 95% RH, Non-Condensing

Protection Rating: IP20

Installation Environment: Indoor Industrial Control Cabinet

Dimensions & Weight

Dimensions (W × H × D): 107.6 × 71.2 × 59.5 mm

Weight: 0.25 kg

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