Mechanical switch contact
Versatile fields of application
Small size
Easy to connect
The airflow monitor (NC / NO) is designed to indicate the loss of air movement of a fan or filter fan. The contact detects the loss of air movement caused by fan failure or blocked filter media regardless of direction of air. Its simple mechanical operation makes it a viable alternative to electronic monitoring systems.
Technical Data
Please find a detailed description of area of application, as well as the functionality of our Airflow Monitor LC 013/LCF 013 in our new Application Leaflet in pdf format
Contact type reed / magnet contact
Normally closed (NC) switch contact open when air is flowing
Normally open (NO) switch contact closed when air is flowing
Max. switching voltage NC: 240VDC (UL), 240V AC/DC (VDE) / NO: 60VDC
Max. switching current NC: DC 500mA / NO: DC 170mA
Max. switching capacity 10W (resistive load)
Switching threshold of airflow velocity > 2.5m/s (hysteresis: > 1m/s)
Max. airflow velocity 50m/s
Contact resistance < 370mOhm (with wire)
Max. air humidity 70% RH (not precipitating)
Service life > 100 000 cycles
Connection 2 x single strand AWG 26, length 500mm, tip of stranded wire 5mm stripped and tinned (NC: black, NO: blue)
Mounting alternatively integrated in protective grille (see table), mounting clamp or mounting clip
Casing plastic according to UL94-HB, black
Fitting position bidirectional tab perpendicular to airflow
Operating/Storage temperature -20 to +50°C (-4 to +122°F) / -20 to +80°C (-4 to+176°F)
Protection type IP20
Approvals  
Note The product of switching voltage and switching current must not exceed 10W. The max. voltage and max. current must not be exceeded, not even short-term (voltage/current peaks). The resulting voltage and current peaks of inductive or capacitive loads must be restricted by acontact protection circuit.

 
Description Art. No. (NC) Art. No. (NO) Dimensions Weight (approx.)
Airflow monitor with mounting clamp and mounting clip LC 013 01300.0-00 01300.1-00 34 x 17.5 x 7.5mm 5g
Airflow integrated in protective grille (plastic)LCF 013 01301.0-00 01301.1-00 80 x 88 x 10.5mm 20g
Airflow integrated in protective grille (plastic)LCF 013 01302.0-00 01302.1-00 92 x 92 x 10mm 20g
Airflow integrated in protective grille (plastic)LCF 013 01303.0-00 01303.1-00 120 x 120 x 10mm 30g