Siemens LME22.331C2 , Sequence Controller
Siemens LME22.331C2 , Sequence Controller
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Product Overview
Product Overview
The Siemens LME22.331C2 is a microprocessor-based burner control unit specifically designed for the startup, supervision, and control of 2-stage gas burners with fan control in intermittent operation. It is engineered to provide high-precision timing and advanced safety monitoring, ensuring compliant operation for burners where a specific safety time ($t_{TSA}$) of 3 seconds and a pre-purge time ($t_1$) of 30 seconds are required. Unlike the LME21 series, the LME22 includes dedicated control for air damper actuators.
Technical Specifications
Technical Specifications
Feature: Technical Data
Product Model: Siemens LME22.331C2
Operating Voltage: AC 220 V – 240 V
Frequency: 50...60 Hz
Pre-purge Time ($t_1$): 30 Seconds
Safety Time ($t_{TSA}$): 3 Seconds
Pre-ignition Time ($t_3$): 3 Seconds
Degree of Protection: IP40
Application: 2-Stage Gas Burners with Actuator Control
Key Features
Key Features
Microprocessor Intelligence: High-precision timing for stable control of fans, air pressure switches, and fuel valves.
Multicolor LED: Real-time visual diagnostics using color-coded signals for startup, operation, and fault tracking.
Actuator Control: Built-in support for air damper actuators to manage transitions between stage 1 and stage 2.
Undervoltage Detection: Safety-first design that triggers a controlled shutdown if power levels drop below safe limits.
Flame Supervision: Supports Ionization Probes or QRA... detectors for reliable flame monitoring in industrial gas applications.
More In Category
Shop the Siemens LME22.331C2 Sequence Controller for 2-stage gas burners and actuator-controlled heating systems. We are a reliable supplier offering genuine Siemens LME series parts with fast Pan-India shipping. Contact us for ready stock and competitive pricing today.
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