• Model:KD-250L

KD 250 L1 Circular duct fan

£ 598.87 (excl. VAT)

£ 718.64 (inc. VAT)

• High efficiency – low noise • Speed-controllable • Integral thermal contacts • Can be installed in any position • Maintenance-free and reliable The KD series have external rotor motors with a new type of mixed flow impeller which reduces the external dimensions of the fans. These fans have a high capacity in relation to their compact design. Brackets are supplied with the fans to make installation easier. The FK mounting clamp facilitates easy installation and removal and prevents the transfer of vibrations to the duct. To protect the motor from overheating the fan has integral thermal contacts with manual reset. The casing is manufactured from galvanised sheet steel..

EC fans are notable for their economical use of energy and excellent ease of control. They can be varied in speed to match the airflow demand, and operate at high efficiency levels. For the same air volume, they consume distinctly less energy than AC fan drives.

Another special feature of EC fans is their energy-saving potential not only at full load, but especially at part-load. When operating at part-load, the energy used is much lower than with an asynchronous motor of equivalent output.

Reduced energy usage guarantees a drop in operating costs.

The KD EC series have external rotor motors (EC) with a mixed flow impeller which reduces the external dimensions of the fans. These fans have a high capacity in relation to their compact design. Brackets are supplied with the fans to make installation easier. The FK mounting clamp facilitates easy installation and removal, and prevents the transfer of vibration to the duct. The fans are delivered with a pre-wired potentiometer(0-10V) that allows you to easily find the desired working point.

Motor protection is integrated in the electronics of the motor. The casing is manufactured from galvanised sheet steel.
PDF Files


Data Sheet

2 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x FlameProof Plate Axial Fan - Single Phase - 12 inches - Eexd IIC T4 -4pole1 x Elta Variable Speed Drive IP66 - 7.5KW2 x Elta Variable Speed Drive IP66 - 2.2KW3 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 22 25 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)3 x Systemair Save Connect 2.0 Internet Module1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FU 15 40 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FRQ5-10A Inverter Speed controller1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP661 x FU 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 211 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Three Phase Transformer 10amps1 x ELTA - Three Phase Transformer 3amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Single Phase Transformer 2amps1 x NKS-D swirl diffuser v-300 x 300mm3 x Electronic extractor fan speed controller - FSC 1.51 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 1253 x EC6H - Reversible Group Fan Electronic Controller1 x Circular Ceiling Diffuser - TST 1001 x PCA Diffuser - PCA-3151 x Curved Blade Grille 600x600 (2way blow)1 x Circular Ceiling Diffuser - TST 2001 x 5-Speed Controller for use with Elta SAX Classic Fans3 x Elta 3 Amp Electronic single phase speed controller with TK1 x JSR 200 Painted RAL50181 x Round ceiling diffuser 400mm1 x Elta 2 Amp Electronic single phase speed controller.1 x Elta 3 Amp Electronic single phase speed controller.1 x Elta 6 Amp Electronic single phase speed controller with TK2 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 8amps1 x ELTA - Single Phase Transformer 16amps1 x Circular Ceiling Diffuser - TST 1601 x ELTA - Single Phase Transformer 12amps1 x Round ceiling diffuser 200mm4 x COM-31 x AIRVENT speed control - AIR4019611 x Balance S Diffuser - NO RING - 100mm1 x Round ceiling diffuser 300mm1 x EFSC-6N- Single Phase Speed Control1 x PCA Diffuser - PCA-2501 x Elta 6 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 350mm1 x ELTA - Single Phase Transformer 10amps3 x Remote Timer Control - 13513 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B1 x 7 Day Programmable TIMECLOCK1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x ACO8AC/EC AutoChangeover panel1 x Rectangular Airbrick Adaptor1 x Elta ACO Panel 149-ACO14E1 x CONTROL ECOWATT - Basic1 x EC-Vent control board1 x EM30-24 Electro-Mechanical Control Panel1 x ACO 149-ACO1/EDV1 x Elta ACO Panel 149-ACO18B1 x EC-Vent Room Unit1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x EM30-24 Control Panel Commissioning Service1 x Easy-fix termination kit - High Rise Ventilator - EFT2 x Remote controller FLEX - for VEKO INT1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans2 x Helios TSW 7.5 Amp Transformer speed controller2 x Vent Axia ACM 150 inline mixed flow duct fan3 x Three Phase Transformer controllers - RMT 1.5 Amp2 x Vent Axia ACM 100 inline mixed flow duct fan1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x Helios TSW 3 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-12TK1 x RDS 11 Helios Transformer Controller With Motor Protection2 x Helios TSW MCB Amp Transformer speed controller1 x Helios TSW 10 Amp Transformer speed controller1 x Vent Axia ACM 200 inline mixed flow duct fan1 x Helios TSW 1.5 Amp Transformer speed controller1 x Vent Axia ACM 125 inline mixed flow duct fan1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x DEF-140T Inlet Guard for the CBT-100N2 x Isolator Switch - ISOSW2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x TG-K Duct temperature sensor2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp2 x BEAS-control module1 x Helios HQW-200/2 - IP551 x FAST-TRACK RANGE 90mm - Adaptor For Distribution Box2 x MWS 1.5 – Transformer Controller With Motor Protection1 x ERR 20/1 Centrifugal inline fan4 x WS - Reversing Switch from Helios Fans2 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Vent Axia T-Series Controller3 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-10TK2 x CS2 Current Switch2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp2 x REE-1 Electronic Speed Controller1 x ERR 31/1 Centrifugal inline fan1 x FAST-TRACK RANGE 90mm - Click Ring (1 bag of 10)2 x Helios HQW-200/4 - IP552 x Transformer (silent) speed controller - RE 3.0 Amp1 x MWS 3 – Transformer Controller With Motor Protection2 x Helios HQW-630/4 - IP551 x Speed Controller - REB31 x Transformer (silent) speed controller - RE 1.5 Amp2 x Speed Controller - REB52 x Multiflow SMB550/4-1AC2 x TG-R room temperature sensor1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)2 x Isolator Switch - EFF-ISO1 x Speed Controller - REB102 x REB-CVF 0-10v Controller1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x Transformer Speed Control - RTRE- 12.0Amp1 x SG-200 Fan Guard for the HQW 2001 x Transformer 5 Speed Controller - ATC1-2TK1 x Two Speed Switch - REGUL-22 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x MTP 10, 10K, Speed control
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
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