Overview
The Schneider SR2E121FU is a compact smart relay designed for small-scale automation systems, machine control, and industrial applications. It integrates programmable logic functions, digital inputs, and relay outputs into a compact controller, providing a reliable solution for simple automation and control operations.
General Information
Part Number: SR2E121FU
Manufacturer: Schneider Electric
Brand: Schneider
Country of Origin: France
Series: Zelio Logic Smart Relay
Type: Compact Smart Relay / Programmable Relay Controller
Application: Machine automation, lighting control, pump management, HVAC systems, and small industrial control panels
Programming Method: Ladder Logic and Function Block Diagram
Mounting: DIN rail or panel installation
Technology: Microprocessor-based control with integrated I/O and programmable functions
Power Specifications
Supply Voltage: 100–240 V AC
Power Consumption: Low power industrial operation
Input Power Range: AC control supply
Protection: Built-in protection against electrical faults and abnormal operating conditions
Memory: Non-volatile memory for user program storage
Status Indicators: LED indicators for power, operation, and fault monitoring
Backup Function: Maintains user programs during power interruption
Communication & Interface
Digital Inputs: Integrated digital input channels for connection with sensors and switches
Relay Outputs: Integrated relay outputs for controlling external devices
Output Type: Electromechanical relay contacts
Communication Interface: Zelio communication port for programming and configuration
Programming Connection: PC-based setup through compatible programming tools
Diagnostics: Fault detection, system monitoring, and operation status feedback
Operator Interface: Front panel display and navigation keys for local configuration
Environmental
Operating Temperature: −20 to +55 °C
Storage Temperature: −40 to +70 °C
Humidity: Up to 95% RH, non-condensing
Installation Environment: Industrial control cabinets and automation panels
Protection Rating: IP20
Mounting Position: Standard DIN rail installation
Dimensions & Weight
Dimensions (L × W × H): 107.6 × 71.2 × 59.5 mm
Weight: 0.22 kg
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