Siemens 20/20ML-11SF (S54430-F5-A1)


Mini Version UV/IR Flame Detector CBL SS FM

Availability: Estimated 18 days

Condition: New
Brand: Siemens
Status: Active
SKU: 122240
Manufacturer Part #: 20/20ML-11SF
Secondary Part #: S54430-F5-A1


The Siemens Triple-IR3 Mini Flame Detector (Series 20 / 20MI) is a high-performance and reliable compact, self-contained triple-spectrum infrared flame detector. With its substantial immunity to false alarms, Series 20 / 20MI has applications in a wide range of industrial and commercial facilities where the threat of accidental fire involves hydrocarbon fuels. Specifically, Model 20/20MI-11SF is comprised of the following: 4-20mA (SINK) wiring; a Normally Closed (N.C) FAULT relay, and Normally Open (N.O) ALARM relay. Model 20/20MI 11SF is stainless-steel by design. Field-connection wiring is made via cable leads. This product is Factory Mutual Approved.

Additional information

Weight 2.5 lbs
Dimensions 4.00 × 4.00 × 2.50 in

Siemens Industry, Inc.




Unit of Measurement

EA (Each)

Production Status



  • Triple Spectrum Design
  • 80% Less Power Consumption
  • Highly Immune to False Alarms
  • Large Field of View (100° horizontal/vertical)
  • Sensitivity Selection
  • User-Programmable Functions
  • Automatic and Manual Built-In-Test (BIT)
  • Standard 4-Wire Connection
  • RS-485 Modbus Compatible
  • MTBF Minimum 100,000 Hours
  • 3-Year Warranty
  • FM Approval (Functional)
  • EN54-10 (VdS) Approved for 20/20MI-1

Mini Triple IR (IR3) Flame Detector


Spectex - Data Sheet