KTEX 50-25-4(230V/3~) (ATEX)
Item number: 19403
• Suitable for use in battery-charging rooms, fume cupboards and similar environments
• Speed controllable
• Integral thermistors (PTC *)
• Maintenance-free and reliable
KTEX fans can be installed in any position and are easy to connect using the DS flexible connections. These fans have impellers with forward-curved blades and external rotor motors. The casing is manufactured from galvanised sheet steel, with a copper inlet cone. To protect the motor from overheating, PTC protective circuits in the motors must be connected to a monitoring apparatus certified according to ATEX directive 2014/34/EU that isolates the motor from voltage supply immediately when activated. We recommend to use UEK230E for motor protection.
Explosion proof versions comply with EN 60079-7:2015, EN 14986:2007, EN 60079-0:2012.
Improved safety in accordance with
Ex eb IIB+H2 T3 Gb
* Positive Temperature Coefficient
Technical parameters
| Nominal data | ||
|---|---|---|
| Voltage (nominal) | 230 | V |
| Frequency | 50 | Hz |
| Phase(s) | 3~ | |
| Input power | 506 | W |
| Input current | 1.54 | A |
| Impeller speed | 1,300 | rpm |
| Air flow | max ; 1,814; | m³/h |
| Mininum static back pressure | 110 | Pa |
| Temperature of transported air | max 40 | °C |
| Max temperature of transported air, when speed controlled | 40 | °C |
| Sound data | ||
|---|---|---|
| Sound pressure level at 3m (20m² Sabin) | 50 | dB(A) |
| Protection/Classification | ||
|---|---|---|
| Enclosure class, motor | IP44 | |
| Insulation class | F | |
| Explosion proof marking | Ex eb IIB+H2 T3 Gb | |
| Certificate | Presafe 17ATEX9970X |
| Data according to ErP | ||
|---|---|---|
| ErP ready | Not ErP relevant |
| Controller and Sensors | ||
|---|---|---|
| Ambient and duct temperature | -20 to 40 | °C |
| Dimensions and weights | ||
|---|---|---|
| Duct dimension, inlet (height x width) | 250 x 500 | mm |
| Duct dimension, outlet (height x width) | 250 x 500 | mm |
| Weight | 18.2 | kg |
| Others | ||
|---|---|---|
| Duct connection type | Rectangular | |
| Motor type | AC |
|
H* = Dimensions from the engine bolts |
|
I** = Dimension with fully open hatch. |
A |
B |
C |
D |
E |
F |
G |
H* |
I** |
|
|
KTEX 50-25 |
498 |
248 |
270 |
520 |
540 |
290 |
532 |
34,5 |
610 |
|
KTEX 50-30 |
498 |
298 |
320 |
520 |
540 |
340 |
562 |
34,5 |
695 |
|
KTEX 60-30 |
598 |
298 |
320 |
620 |
640 |
340 |
642 |
52 |
715 |
|
KTEX 60-35 |
598 |
348 |
370 |
620 |
640 |
390 |
717 |
54,5 |
805 |
|
KTEX 70-40 |
698 |
398 |
420 |
720 |
740 |
440 |
787 |
50 |
900 |
Circular duct fan for easy and direct installation in ducts. Galvanized steel sheet housing. Copper inlet cone. Service cover. The fan unit is mounted on the service cover for easy cleaning and maintenance. Free-running, forward curved circular impeller made of galvanized steel sheet. Impeller acc. to VDI 2060, balancing quality G 6.3, dynamically balanced in two planes. Explosion proof, voltage controllable external rotor motor. (IP44), maintenance-free, the motor is placed inside the air flow for cooling. PTC with leads to a motor protection device (e.g. Systemair U-EK 230E-IP54). Speed-controlled via a 5-step transformer. Supply cable, led out. For indoor installation. Installation in any mounting position.
Suitable to transport explosive atmospheres. Tested acc. to ATEX Directive 2014/34/EU.
Explosion proof versions comply with EN 60079-7:2015, EN 14986:2007, EN 60079-0:2012. Improved safety in accordance with
Ex eb IIB+H2 T3 Gb