Siemens LFL 1.333 Sequence Controller
Siemens LFL 1.333 Sequence Controller
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Product Overview
Product Overview
The Siemens LFL 1.333 is a microprocessor-compatible burner control unit designed for large-capacity burners with fan control. It is world-renowned for its robustness in industrial applications, providing comprehensive supervision of the air damper, fuel valves, and flame. It is engineered for intermittent operation, requiring a safety time ($t_{TSA}$) of 3 seconds and a long pre-purge time ($t_1$) of 31 seconds.
Technical Specifications
Technical Specifications
Feature: Technical Data
Product Model: Siemens LFL 1.333
Operating Voltage: AC 220 V – 240 V
Frequency: 50...60 Hz
Pre-purge Time ($t_1$): 31 Seconds
Safety Time ($t_{TSA}$): 3 Seconds
Pre-ignition Time ($t_3$): 6 Seconds
Degree of Protection: IP40
Application: Large-Capacity Gas, Oil, or Dual-Fuel Burners
Key Features
Key Features
Universal Application: Suitable for gas, oil, or dual-fuel burners with multi-stage or modulating control.
Actuator & Damper Control: Advanced management of air damper actuators to ensure precise air-to-fuel ratios across all firing rates.
Flame Supervision: Supports a wide range of detectors, including Ionization Probes, QRA... UV detectors, or RAR... selenium photocell detectors.
Self-Checking Circuitry: Automatically checks the flame signal and safety circuits before and during the startup sequence.
Lockout Indicator: Features a visual indicator that stops at the exact position in the sequence where a fault occurs, simplifying troubleshooting.
More In Category
Shop the Siemens LFL 1.333 Sequence Controller for high-capacity industrial gas and oil burners. We are a reliable supplier of genuine Siemens LFL series parts with ready stock and fast Pan-India shipping. Contact us for competitive pricing today.
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