The LHS 21S SYSTEM air heater features integrated power electronics, enabling continuously variable air temperature adjustment, which renders external power control (e.g. semiconductor relay) unnecessary. Regulation via a remote control is also an option with an electroplated separate 4 – 20 mA interface as a controller, PLC (Programmable Logic Controller) or external potentiometer. The integrated device and heating element cover offers reliable protection against damage to the air heater from excessively high temperatures.
Technical Data
Metric
Imperial
Phases
1x
Voltage
120 - 230 V
Current
4.5 - 17 A
Power
1000 - 2000 W
Max. air outlet temperature
650 °C
Min. airflow
Required minimum air volume at 100% heating power and an air inlet temperature of 20°C / 68°F
80 - 160 l/min
Max. air inlet temperature
65 °C
Max. ambient temperature
65 °C
Air temperature control
Closed loop
Overheating protection
Yes
Alarm output
Normally open contact
Max. inlet pressure
100 kPa
Nozzle connection ø
36.5 mm / 1.45 in
Display
Yes
Interfaces
0–10V; 4–20mA
Length
236 mm
Width
67 mm
Height
71 mm
Weight
0.55 kg
Approvals
CE; EAC; S+; UKCA
Protection class
II
Highlights
Sophisticated digital and analogue features
Maintenance-friendly
Reliable heating element
The durable heating element features an integrated and patented heating element protection system, preventing the device from overheating. The component can also be replaced quickly and easily if any damage occurs.
Precise
Integrated thermocouple
Thanks to the air heaters integrated thermocouple, the heating output can be precisely monitored on all SYSTEM devices.
User-friendly
LED display
The LHS 21S SYSTEM’s digital display enables precise control of the current and nominal temperature. The target capacity value is also displayed as a % in control operation.
