Siemens 40/40I-222SF

IR3 Flame Detector, WO2 85C 3/4″ SS FM

Condition: New
Brand: Siemens
Status: Active
SKU: 122235
Manufacturer Part #: 40/40I-222SF
Secondary Part #: S54430-F35-A1


The Siemens Triple IR (IR3) Flame Detector (Series 40 / 40i) is a reliable, compact and self contained triple-spectrum infrared flame detector that detects fuel-and-gas fires at long distances, along with providing the highest immunity to false alarms. Series 40 / 40i can detect a 1 ft2 (0.1m2) gasoline pan fire at 215 ft (65m) in less than 5 seconds. Series 40/40i also has considerable durability and weather-related resistance. Specifically, Model 40/40i-122SF is comprised of the following: 4-20mA (SINK) wiring; a Normally Closed (N.C) FAULT relay, and Normally Open (N.O) ALARM relay. Model 40/40i 122SF has a maximum operating temperature of 175°F (85°C). It is stainless-steel by design, and has a 3/4 inch National Pipe Thread (NPT) Taper. This product is Factory Mutual Approved, as well as SIL2 (TUV) Approved to IEC 61508.

Additional information

Weight 6.1 lbs
Dimensions 4.00 × 4.60 × 6.18 in

Siemens Industry, Inc.




Unit of Measurement

EA (Each)

Production Status


40/40I Triple IR (IR3) Flame Detector


Spectrex - Data Sheet