systemair KTEX 50-25-4 3-Phase Rectangular Duct Fan
DESCRIPTION
- Certified according to ATEX
- 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 galvanized sheet steel, with a copper inlet cone. To protect the motor from overheating, these fans have integral thermistors (PTC) with external leads which must be connected to the U-EK230E motor protection relay.
Explosion-proof versions comply with EN 50014, EN 50019, EN 1127-1 and EN 13463-1. Improved safety in accordance with EEx e II T3. εx II 2G
- Positive Temperature Coefficient
Technical parameters
| Nominal data | ||
| Frequency | 50 | Hz |
| Voltage | 230 | V |
| Phase | 3 | ~ |
| Input power (P1) | 506 | W |
| Current | 1,54 | A |
| Max. airflow | 0,504 | m³/s |
| R.p.m. | 1300 | r.p.m. |
| Min. static back pressure | 110 | Pa |
| Weight | 18,2 | kg |
| Temperature data | ||
| Temperature range, ambient and duct | -20-40 | °C |
| Sound data | ||
| Sound pressure level at 3 m | 50,2 | dB(A) |
| Protection / Classification | ||
| Insulation class | F | |
| Enclosure class, motor | IP44 | |
| Certificate | Presafe 17ATEX9970X | |
| Explosion proof | Ex eb IIB+H2 T3 Gb | |
Diagrams
Max efficiency
| Hydraulic data | ||||||||||
| Working air flow | 0,252 | m³/s | ||||||||
| Working static pressure | 296 | Pa | ||||||||
| Power | 234 | W | ||||||||
| Speed | 1424 | r.p.m. | ||||||||
| Current | 1,02 | A | ||||||||
| SFP | 0,929 | W/(l/s) | ||||||||
| Voltage | 230 | V | ||||||||
| Sound power level | 63 | 125 | 250 | 500 | 1k | 2k | 4k | 8k | Tot | |
| Inlet | dB(A) | 55 | 64 | 62 | 58 | 60 | 61 | 59 | 54 | 69 |
| Outlet | dB(A) | 52 | 65 | 65 | 66 | 68 | 66 | 65 | 60 | 74 |
| Surrounding | dB(A) | 41 | 51 | 53 | 45 | 50 | 45 | 43 | 38 | 57 |
- Name: KTEX 50-25-4(230V/3~) (ATEX) | Item no.: 19403
- Document type: Product card | Document date: 2019-07-10 | Generated by: Online catalog
Wiring
Dimensions
- H* = Dimensions from the engine bolts
- I** = Dimension with fully open hatch.
Accessories
Electric accessories
- Trigger unit U-EK230E (30199)
Accessories
- LDR 50-25 Silencer (5070)
- FFK 50-25 Filter cassette rect (1752) DS-EX 50-25 Flex. connection (4116)
Documentation
- DKEX_KTEX_IMO_141815_CE_EN_A004.pdf (6,24MB)
- Presafe 16 ATEX 8871Q.PDF (261,03kB)
- Presafe17ATEX9970X_KTEX_DKEX.PDF (306,91kB)
Specification text
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
- Get In Touch
- Call: 0845 6880112
- Email: [email protected]
- Our Address
- Puravent, Adremit Limited, Unit 5a, Commercial Yard, Settle, North Yorkshire, BD24 9RH
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