LMV51.300B2 Siemens Burner Control

Overview

The Siemens LMV51.300B2 is a high-performance, microprocessor-based burner management system designed for the supervision and control of forced draft oil or gas burners of medium to high capacity. This linkageless control unit integrates critical functions including flame safeguard, electronic fuel-air ratio control, and a load controller into a single compact module. Engineered for industrial applications, it utilizes a CAN bus system to communicate with actuators and other system components, ensuring precise combustion control, improved energy efficiency, and reduced emissions.

Features

• Integrated linkageless fuel-air ratio control for up to 4 actuators
• Built-in digital PID load controller for precise temperature or pressure regulation
• Electronic self-supervision and burner flame safeguard functionality
• Variable Speed Drive (VSD) control module compatibility for fan motor optimization
• CAN bus communication interface for seamless integration with system components
• Gas valve proving (leak testing) functionality
• Designed for a long service life of approximately 250,000 start cycles (approx. 10 years)
• Highly repeatable actuator positioning with up to 900 positions for maximum accuracy

Specifications

• Model: LMV51.300B2
• Operating Voltage: AC 230 V (+10% / -15%)
• Mains Frequency: 50/60 Hz
• Power Consumption: Approximately 3.5 VA
• Protection Rating: IP00 (must be mounted in a control panel)
• Operating Temperature: -20 C to +60 C (-4 F to +140 F)
• Dimensions: 230 mm (Height) x 135 mm (Width) x 60 mm (Depth)
• Weight: Approximately 1.0 kg (2.2 lbs)
• Safety Class: Type 2B according to DIN EN 60730-1

Applications

• Control and supervision of forced draft gas and oil burners
• Industrial and commercial heating systems requiring precise fuel-air ratio control
• Steam and hot water boilers in HVAC and thermal process plants
• High-capacity combustion systems requiring integrated PID load management
• Retrofitting legacy linkage-based burner systems with modern electronic controls