LME75.812A1PKG Siemens Flame Safeguard

Overview

The Siemens LME75.812A1PKG is a high-performance burner control package designed for the supervision and management of 1-stage or modulating forced draft burners in continuous operation. This comprehensive kit includes the LME75.000A1 base unit, the PME75.812A1 program module, and a complete connector plug set. Engineered for medium to large-capacity industrial and commercial burners, this microprocessor-based flame safeguard ensures reliable safety by monitoring flames via self-checking UV scanners, infrared detectors, or ionization probes. It is particularly noted for its ability to handle modulating actuator control with an independent ignition position, making it ideal for sophisticated combustion systems.

Features

• Continuous operation capability designed for uninterrupted supervision exceeding 24 hours
• Modulating actuator control specifically configured for independent ignition positions
• Digital signal processing provides accurate control sequences and timing
• Integrated valve proving function to enhance system safety and leak detection
• Multicolor LED interface and 3×7-segment display for clear status and fault messages
• BC interface allows for seamless connection to AZL2 display units or PC-based service tools
• SIL3 capable classification according to DIN EN 13611 for high-level safety integrity
• Robust protection with undervoltage detection and electrical remote lockout reset

Specifications

• Model: LME75.812A1PKG
• Operating Voltage: AC 120 V (50/60 Hz)
• Component Parts: LME75.000A1 (Base), PME75.812A1 (Module), AGG3.710 (Plug Set)
• Safety Level: SIL3 Capable
• Flame Detection: Self-checking UV, IR, or Ionization
• Enclosure Material: Molded plastic housing
• Power Consumption: Approximately 110V AC
• Designed Lifetime: 250,000 burner startup cycles (approx. 10 years)

Applications

• 1-stage or modulating forced draft burners for gas or liquid fuels
• Direct or pilot-ignited industrial thermoprocessing plants (EN 746-2)
• High-demand HVAC and boiler systems requiring continuous burner operation
• Integration with Siemens SQM4 or SQM5 actuators for fuel-air ratio control
• Commercial gas trains requiring integrated valve proving and safety shut-off control