LME75.812A1PKG-PRG2 Siemens Flame Safeguard

Overview

The Siemens LME75.812A1PKG-PRG2 is a high-performance flame safeguard and burner control package designed for the supervision of 1-stage or modulating forced draft burners. Built for continuous operation, this unit ensures maximum safety by managing the commissioning and monitoring of industrial and commercial burners. This specific package includes the LME75.000A1 base unit paired with the PME75.812A1 program module and a comprehensive plug kit, providing a complete solution for sophisticated combustion systems requiring modulating actuator control and independent ignition positioning.

Features

• Designed for continuous operation exceeding 24 hours of uninterrupted burner use
• Integrated modulating actuator control for precise fuel-air ratio management
• Independent ignition position functionality for enhanced flexibility in burner starts
• Self-checking mechanism compatible with UV scanners, infrared detectors, and flame rods
• Digital signal processing ensures highly accurate control sequences and timing
• Integrated valve proving function for increased system safety and leak detection
• Multi-color LED and 3×7-segment display for status, service, and detailed fault information
• SIL 3 capable, making it suitable for high-safety-requirement industrial applications
• Includes Proof of Closure (POC) input and electrical remote lockout reset facility

Specifications

• Model: LME75.812A1PKG-PRG2
• Mains Voltage: 110V – 120V AC (50/60 Hz)
• Power Consumption: Approximately 18 VA
• Safety Class: IP40 (when built-in)
• Operating Temperature: -20 C to +60 C
• Design Lifetime: 250,000 burner startup cycles (approx. 10 years)
• Input Signals: DC 0 to 10 V, 0/4 to 20 mA, or 0 to 135 Ohm for load control
• Flame Failure Response Time: Parameterizable to meet specific EN 676 or EN 746-2 standards
• Approvals: UL, FM, CSA, CE, UKCA, and SIL 3 classified

Applications

• 1-stage or modulating forced draft burners for gaseous or liquid fuels
• Direct or pilot-ignited industrial and commercial burner systems
• Industrial thermoprocessing plants adhering to EN 746-2 safety requirements
• Continuous operation HVAC and boiler systems requiring high-reliability flame supervision
• Combustion systems utilizing Siemens SQM4 or SQM5 series actuators for linkageless control