LGK16.635A17 Siemens Flame Safeguard

Overview

The Siemens LGK16.635A17 is a high-performance burner control box designed for the supervision and control of multistage or modulating oil, gas, or dual-fuel burners of medium to high capacity. Engineered for continuous operation, it features an integrated self-checking flame signal amplifier that ensures high levels of safety by monitoring for premature or missing flame signals. It also includes air pressure supervision to verify proper air damper control, making it an essential component for industrial combustion plants that require constant monitoring and high-reliability safety standards.

Features

• Self-checking flame signal amplifier designed for continuous burner operation
• Air pressure supervision for monitored air damper control
• Internal safety circuit that initiates lockout in the event of flame signal or amplifier failure
• Designed for 250,000 burner startup cycles, approximately 10 years of service life
• Compatible with ultraviolet (UV) flame detectors and ionization probes
• Robust construction suitable for demanding industrial and commercial environments
• CE certified and compliant with EN 298 standards for gas-fired appliances

Specifications

• Model: LGK16.635A17
• Supply Voltage: AC 100-110 V (50/60 Hz)
• Power Consumption: 3.5 VA
• Prepurge Time (t1): 37 seconds
• Safety Time (TSA): 2.5 seconds
• Second Safety Time (t9): 5 seconds
• Protection Rating: IP40
• Operating Temperature: -20 C to +60 C
• Weight: Approximately 1.0 kg (2.2 lbs)
• Mounting: Requires plug-in base (e.g., AGM17)

Applications

• Supervision of oil, gas, and dual-fuel forced draft burners of medium to high capacity
• Continuous operation in multistage or modulating burner systems
• Industrial combustion plants using boiler sequencing or high heat demand
• Steam boilers complying with TRD 411 and TRD 412 regulations
• Air heaters and various thermal process applications requiring self-checking safety controls