LME75.812A2PKG Siemens Flame Safeguard

Overview

The Siemens LME75.812A2PKG is a high-performance burner control package designed for the supervision and commissioning of forced draft burners in continuous operation. This package simplifies installation by combining the LME75.000A2 base unit with the PME75.812A2 program module and a complete connector plug set. Engineered for medium to large capacity industrial and commercial burners, it supports 1-stage or modulating configurations and is specifically optimized for use with self-checking UV flame detectors.

Features

• Designed for continuous operation, supporting 1-stage or modulating burners
• Integrated actuator control for Siemens SQM4 or SQM5 actuators via analog or 3-position signals
• Supports independent ignition positions for flexible burner management
• Integrated valve proving function ensures gas train integrity
• Built-in multi-color LED and 3-digit display provide real-time status and diagnostics
• SIL3 capable classification for high-level safety in industrial applications
• Accurate digital signal handling for precise control sequences
• Proof of closure (POC) switch monitoring for enhanced safety compliance

Specifications

• Model: LME75.812A2PKG
• Operating Voltage: AC 230 V (50/60 Hz)
• Base Unit: LME75.000A2
• Program Module: PME75.812A2
• Connector Set: AGG3.710
• Safety Level: SIL3 (Safety Integrity Level 3)
• Designed Lifetime: 250,000 burner startup cycles (approx. 10 years)
• Operating Mode: Continuous or intermittent
• Protection: Undervoltage detection and electrical remote lockout reset

Applications

• Supervision of 1-stage or 2-stage forced draft burners
• Modulating forced draft burners with pneumatic or mechanical ratio control
• Industrial thermoprocessing equipment compliant with EN 746-2
• Gas-fired equipment using forced draft burners compliant with EN 676
• Systems requiring self-checking UV scanner, infrared scanner, or flame rod monitoring
• Integration into burner management systems for boilers and thermal process plants