Siemens controller LMG21.330B27 commonly used for BALTUR burners

Product Overview

The Siemens LMG21.330B27 is a professional-grade gas burner controller manufactured by Siemens, a global leader in industrial automation with over 170 years of engineering expertise. Designed for commercial and industrial gas burner systems, this controller provides reliable automatic startup sequence control, active air pressure supervision, undervoltage detection, and electrical remote reset — making it an ideal replacement for LME21.330C2 configurations in Baltur burner installations.

Why Choose Siemens Burner Control Technology?

• Active Air Pressure Supervision: Unlike most basic burner controllers that only confirm the air pressure switch is in a correct state at startup, the LMG21.330B27 performs a functional check — actively verifying the switch responds to air pressure changes during startup and throughout operation, preventing dangerous air-deficient combustion conditions.

• Undervoltage Detection: Protects against unreliable ignition and incomplete valve operation caused by supply voltage drops, preventing partial-ignition events that could lead to fuel accumulation in the combustion chamber.

• Electrical Remote Reset: Allows lockout reset from a remote control panel — no need for physical access to the controller, reducing maintenance response time in hard-to-reach installations.

• Automatic Startup Sequence: Manages pre-purge, ignition, flame establishment, and steady-state operation for fully automated burner management.

• LME21.330C2 Compatible: Drop-in replacement for LME21.330C2 configurations, simplifying upgrade and retrofit projects.

Technical Specifications

Typical Applications

• Commercial Gas Burners: Hot water boilers, steam boilers, and heating systems in hotels, hospitals, and office buildings

• Industrial Furnaces: Process heating in manufacturing, ceramics, and food processing industries

• HVAC Systems: Building heating and ventilation equipment requiring precise combustion control

• Baltur Burner Replacements: Designed specifically for Baltur gas burner systems as a direct replacement for LME21.330C2

• Industrial Process Heating: Any application requiring reliable, supervised gas burner flame management

Quality Assurance and Support

• ✓ Original Siemens Product: 100% genuine Siemens LMG21.330B27 controller with authenticity guaranteed

• ✓ Professional Technical Support: 15+ years engineering team experienced in industrial burner integration and Siemens automation

• ✓ Quality Inspection: All products are electrically tested before shipment

• ✓ Fast Shipping: Ships within 1-3 business days from Hong Kong warehouse

• ✓ 30-Day Returns: Hassle-free return policy for unused items

• ✓ 1-Year Warranty: Manufacturer warranty included

Packing and Shipping

Each unit is carefully packed in anti-static materials with protective foam padding to ensure safe delivery. Shipping weight is approximately 2.5 kg. We ship globally with tracking provided for all international orders.